report on aptitude android app

8/18/2019 report on aptitude android app

1/47

APTITUDE LEARNING &TEST APPLIATION

Abstract

The students appearing for placements and various other exams like GRE, GMAT, andGATE prepare by coaching classes or by self-study and they are appearing for mock testsand search for the study material from different website. And for this they require internetconnection, which is not possible to access by everyone at any place.

Today, the smart phones are able to replace desktop PC’s and laptops up to great extents. There are offline android applications available for aptitude tests but there exists nonethat provides the test for all sections with random set of questions, timer for each test,tutorials, score calculation and maintaining statistics in one single application. This provides a different feature from the existing aptitude applications available in Android play stores along with the idea of developing an application that overcomes the problemsof the existing applications which are available from which some have very easy patternof the question or some have different category of the questions but even these levels cannot exactly determine the level of the users. We are providing an application whichautomatically judges the level of the user when the user uses the learning application.Learning application also have tutorials to refer to if the user faces problems directlyentering the practice session. Admin application will be used to upload questions andmaintain user’s database (uploading new questions etc.). Technology used will beandroid tools(JVM, android studio), for coding the application, PHP language will beused at the sever end for uploading the questions via excel sheets. The main aim of ourApplication is that “we don’t give all, but we give what user need". This way the user

will not waste time doing questions of the same level over and over.


2/47

CONTENT

1. INTRODUCTION1.1 Preamble1.2 Need of the project1.3 Problem Statement1.4

Goals &Objectives1.5 Proposed Solution Approach1.6 Organization of the Report

2. LITERATURE REVIEW2.1 Summary of Reviewed Literature

3. BACKGROUND STUDY3.1 Fundamentals/Relevant Concepts3.2 Tools / Technology to be used in the Project

4. ANALYSIS4.1 Detailed Problem Statement4.2 Analysis of Existing Technologies/ approaches4.3 Requirement Analysis, Feasibility Study, Resource Requirement etc

5. DESIGN5.1 System Architecture Diagram of Proposed System5.2 Activity Diagram5.3 Data Design Diagram/ ER Diagram

6.

IMPLEMENTATION6.1 Hardware &Software Used6.2 Description of Classes and Functions Used

7. TESTING AND RESULT7.1 Test Cases/ Test Scenarios7.2 Result

8. CONCLUSION &FUTURE WORK8.1 Conclusion8.2 Future work


3/47

List of Figures

4.1 Usecase Diagram4.2 Description usecase Diagram5.1.1 System Architecture Diagram(overall)

5.1.2 System Architecture Diagram(Android)5.1.3 System Architecture Diagram(Test)5.1.4 System Architecture Diagram(Learning)5.2.1 Activity Diagram 1(Learning)5.2.2 Activity Diagram 2(Login and Registration)5.2.3 Activity Diagram 3(Testing)5.2.4 Activity Diagram 4(Update and View account)5.2.5 Activity Diagram 5(View resource and update question)5.3 E-R Diagram7.2.1 Screenshot 17.2.2 Screenshot 2

7.2.3 Screenshot 37.2.4 Screenshot 4

List of Tables

5.3.1.1 Admin Database5.3.1.2 Student Database5.3.1.3 Slevel Database5.3.1.4 Rlevel Database5.3.1.5 Testinfo Database5.3.1.6 Testques Database5.3.1.7 tr Database5.3.1.8 Question Database


4/47

CHAPTER-1 INTRODUCTION

1.1 Preamble

Today, we can see that many people who are prepare for their exams are studying in buses, in parks or in a cafe with a test book keep in hands. The tests prepared throughelectronic exam systems, now, have provides a better choice for those who prepare fortheir exams by using their personal computers or mobile devices. Connecting suchservices requires a computer. In other words, it is necessary that students must be in anenvironment which provides above mentioned conditions in order to access suchelectronic exam systems. Mobile is a useful part of daily life. But now with increasingtechnology, customers are demanding best and very efficient applications. It ischallenging work to develop such a mobile application in this competitive era that willmeet the expectation of customers. The advancement in mobile technology is improving

everyday life.

Now a day’s different mobile technology as well as mobile phones available in themarket. The users wish to use various applications in their day to day life to reduce workload by some way. Now students are using mobile technology in study related purposealso. Student can easily find their assignments and questions through internet. So ourapplication is also used by the student who are appearing for placements and otherengineering related entrance exams, have to prepare by own in technical as well as non-technical areas. For this they required study material from different sources. Also thereare many mobile applications available that provide mock tests. But these applicationsgenerally waste the time of students because they can't able to judge the level of

intelligence of the student. Some time student doesn’t find anything beneficial for them.So our application places the question by judging students level of accuracy and the timetaken to solve the particular question.

The application we are designing will be divided in 3 different parts: Learningapplication, testing application, and Administrator application. The learning applicationwill include theory to study and learn the topics of aptitude. It will also include formulasand short-tricks to solve the questions in required time. He/she will also be provided withtutorial video for additional help. The Learning application will focus on analysis of thelevel of student so that user doesn't waste time in solving question of the same level overand over. If the analysis concludes that user's performance is too low the user will

automatically be moved to lower level and if the performance is good he/she will bemoved to higher level. The Testing application will notify users about the test updatesand users will be able to take the tests online.

1.2 Need of Project

To increase accuracy : for students who are preparing for aptitude based examthrough different apps they only provide random questions not based on level of


5/47

students which decreased accuracy but this app provides them questions as perlevel which will increase accuracy.

To save time: user can save their time which is waste in solving easy questions because App only present question according to the level of user.

Tutorials: Tutorials in form of text and also in form of videos, because many people like to learn by videos.

Score Board: After each test, the score will be calculated. This section wisestatistics will also be available for future reference.

Random test: The test that we generate will include random questions of all three sections. The score evaluation of this test will also include negative marking.

Categorized learni ng: Learning application will be well categorized so that the

user gets to work on the particular category.

Timer: For each test, timer will be provided that is enough to complete that particular test. The user can also finish the test before time complete.

Separate Appl ication (L earn & Test): Separate application decrease thecomplexity of application and the performance of the application increases.

1.3 Problem Statement

To make aptitude learning and test application which can be accessed on the smart

phones of users as well as online. This app saves all the data and performance of users.We are providing a application which automatically judge the level of the user and then itwill give the question accordingly. The main aim of our Application is that “we don’tgive all, but we give what user need". This way the user will not waste time doingquestions of the same level over and over.

The Pocket Aptitude App is rated in the top 5 aptitude applications in android marketdeveloped by SinduRajan and designed by YaliniKumaraguru. Pocket Aptitude is acollection of 1000+ quantitative aptitude questions and word problems frequently askedin competitive examinations and placement papers. It is designed as a preparation tool for job aspirants and those waiting to crack CAT, XAT, MAT, GRE, GMAT, SAT, NTSEand various bank exams. People with an inclination towards mathematics can use this app

to sharpen their IQ, test their aptitude skills and enrich their knowledge. This applicationhas various fine points and flaws like it provides a good user interface but onlyquantitative tests are conducted. It provides score calculation for practice test but does notstore it for future reference. Another flaw is that the user gets the same set of questionseach time they appear for the test.

Logical Reasoning helps in improving problem-solving skills by focusing on LogicalReasoning Questions. Logical Reasoning will help you in preparation of admissions tests


6/47

and other different kind of exams, but the user interface is not interactive, the user has toscroll horizontally to view the entire answer. It just has MCQ’s without timer for test andwithout score evaluation.

The Aptitude Interview Questions Application developed by Programmer world and theAptitude Questions Application developed by Lakeba Mobile Apps are the applications

that do not provide a test. They just consist of quantitative questions and answers, yetthey are in the list of top rated apps in android market. These apps can be used for justgaining some information, but not to test one’s knowledge. In Aptitude Interview

Questions Application, sections are not named properly, this may confuse the user whichsection has what kind of questions and also it is not compatible with all devices. InAptitude Questions Application, the questions are not categorized.

The Aptitude App is developed by Pradeep Kumar Rapolu is another most frequentlyused app. This Offline Application provides the entire stuff for the students and jobseekers to crack the Campus recruitment tests. Complete information regarding formulasand FAQs has been provided, for almost all type of topics in Arithmetic and Verbal

reasoning. Good navigation flexibility, makes operating the application very simple, butthe user interface is not attractive. It does not provide test, just simple questions andanswers.

1.3 Goals and Objectives

The goal of the project is to develop aptitude learning and test application which is usefulto users. In order to achieve this goal, the main objective is to build smart aptitudelearning and test application with the following features/facilities:

Application should online.

The application should record data and store the same data on server.

The user should not be able to kill the application. Users can check their recent performance and accuracy.

Users can easily use and access it.

Admin must have a facility to set reset the uploaded data.

Users can use app at any location where they want.

1.5 Solution Approach

The solution approach of the study is to provide questions as per level to the users. Whenthe user downloads the application user will be provided with all the previously uploadedquestion and answers and learning material. User will also get updates on the new

learning material and tests. Administrator will provide the question with different levels.He will upload the question on portal and the users will get the questions on their mobileapp. The application will be divided into three different parts. Learning, Testing andAdministrator.

1.5.1 Learning Appli cation : Learning application will analyses the level of the user andupgrade or degrade the level.


7/47

1.5.2 Testing Application : Testing application will generate test from the followingCategories: -

Logical Reasoning

Aptitude

Verbal

Mixture of Logical reasoning, Aptitude, and Verbal.

1.5.3 Administrator Appli cation : Administrator application controls all the activities ofthe user through application updates. Administrator has the right to upload test for testapplication.

1.6 Organization of the Project Report

Chapter 1- Introduction : This chapter gives an over view of the project and explains the purpose of the project.

Chapter 2- Background: This chapter describes in detail the Android Studio, and Jdk as the frontend, and My SQLite, MySQL, Dalvik and Java as background.

Chapter 3- Analysis : This chapter describes the problem statement of the thesis work. It deals with the feasibility study, functional and non-functional requirements; hardwareand software specifications use case analysis, activity diagrams and ER diagram.

Chapter 4- Design : This chapter focuses on the design details comprising of the basic Architecture of the application, the basic Architecture of the system, protocols to be used,database design and its description, Sequence diagrams and class diagrams.

Chapter 5 - Implementation : This chapter focuses on the implementation details ofdifferent modules.

Chapter 6- Testing: This chapter focuses on the test cases of different modules.

Chapter7- Conclusion and Future work : This chapter summarizes and derives aconclusion about the project. It briefly discusses the entire research work that has beendone for the project. It also discusses the features, advantages, limitations and the futurescope of the project.

The next section of the report contains the background study of the system, the literature

that has been referred to get a detailed insight into the developments in the similar fields.It also briefly describes the tools and technologies that shall be employed to fulfill ourobjective.


8/47

CHAPTER-2 LITERATURE REVIEW

2.1 Summary of Literature Review

The research papers discusses about many aptitude application that have been developed.

It focuses mainly on the features these applications are providing and the drawbacks theyhave.

User Interface: The pocket aptitude app has a very user friendly interface that isinteractive and provides easy navigation throughout the app. -The logical andreasoning app is not interactive as the user has to horizontally scroll for viewingthe answer.

Categorization : The Pocket Aptitude App provides test facility for onlyquantitative section.

Random Questions : The Pocket Aptitude App and the Logical and ReasoningApp provides same set of questions each time the user appears for the test.

Al l i n One Test : The Pocket Aptitude App and the Logical and Reasoning Appdoes not provide All In One test facility

Timer: The Pocket Aptitude App provides timer for only the practice test. -TheLogical and Reasoning App does not provide timer facility.

Hint : The Pocket Aptitude App and the Offline Android Aptitude Application provides hint during test. -The Logical and Reasoning App does not provide hintduring test.

Score Board : The Pocket Aptitude App and the Logical and Reasoning App donot maintain score board for future reference.

The Aptitude Interview Questions Application developed by Programmer-world and theAptitude Questions Application developed by Lakeba Mobile Apps are the applicationsthat do not provide a test. They just consist of quantitative questions and answers, yetthey are in the list of top rated apps in android market. These apps can be used for justgaining some information, but not to test one’s knowledge. In Aptitude Interview


Best way to find out the flaws with our application will be the user feedback andcomparison to previous android application. User feedback can be seen through the ratingthe user gives online and the comments they post on the play-store. Comparing eachelement of the application to the previous application will lead to a better application. We


9/47

will provide users with email on which they can tell us the problems they are facing withthe application. By considering the need of the students for placements and other entranceexams, this application must be developed in the most preferred mobile operating systemi.e. Android. The application must be properly categorizing the sections, providingsection wise tutorials, random set of questions and timer for each test, maintaining score

board along with a user friendly and attractive and easy to use user interface. It isdesigned as a preparation tool for job aspirants and various aptitude tests.


10/47

CHAPTER-3 BACKGROUND STUDY

2.1 Fundamental Concepts

2.2 Tool and Technology Used

2.2.1 Android Studio: Android Studio is the official IDE for Android application

development. Android Studio provides a number of improvements to assist you in

debugging and improving the performance of your code, including an improved virtual

device management, inline debugging, and performance analysis tools. Android Studio

provides a memory and CPU monitor view so you can more easily monitor your app's

performance and memory usage to track CPU usage, find reallocated objects, locate

memory leaks, and track the amount of memory the connected device is using.

Features of the Android Studio:

Customize, configure, and extend the build process.

Create multiple APKs for your app with different features using the same project

and modules.

Reuse code and resources across source sets.

2.2.2 Java Development K it: The Java Development Kit (JDK) is an implementation of

either one of the Java SE, Java EE or Java ME platforms released by Oracle Corporation

in the form of a binary product aimed at Java developers on Solaris, Linux, Mac OS or

Windows. The JDK includes a private JVM and a few other resources to finish the recipe

to a Java Application. Since the introduction of the Java platform, it has been by far the

most widely used Software Development Kit on 17 November 2006, Sun announced that

it would be released under the GNU General Public License (GPL), thus making it free

software. This happened in large part on 8 May 2007, when Sun contributed the source

code to the OpenJDK.

2.2.3 My SQLi te: SQLite is a relational database management system contained in a C

programming library. In contrast to many other database management systems, SQLite is

not a client – server database engine. Rather, it is embedded into the end program.


11/47

SQLite is ACID-compliant and implements most of the SQL standard, using a

dynamically and weakly typed SQL syntax that does not guarantee the domain integrity.

SQLite is a popular choice as embedded database software for local/client storage in

application software such as web browsers. It is arguably the most widely deployed

database engine, as it is used today by several widespread browsers, operating systems,

and embedded systems, among others. SQLite has bindings to many programming

languages.

2.2.4 MySQL: MySQL is written in C and C++. Its SQL parser is written in YACC, but it

uses a home-brewed lexical analyzer. MySQL is offered fewer than two different editions:

the open source MySQL Community Server and the proprietary Enterprise Server. MySQL Enterprise Server is differentiated by a series of proprietary extensions which

install as server plugging, but otherwise shares the version numbering system and is built

from the same code base.

Major features as available in MySQL 5.6:

Cross-platform support

Stored procedures, using a procedural language that closely adheres to SQL/PSM

Triggers

Cursors

Updatable views

Online DDL when using the InnoDB Storage Engine.

Information schema

Performance Schema

Embedded database library

Multiple storage engines, allowing one to choose the one that is most effective for

each table in the application.

2.2.5 Apache Tomcat: Apache Tomcat is an open source software implementation of the

Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket

technologies. The Java Servlet, JavaServer Pages, Java Expression Language and Java


12/47

WebSocket specifications are developed under the Java Community Process. Apache

Tomcat powers numerous large-scale, mission-critical web applications across a diverse

range of industries and organizations.

2.2.6 Protocol: A protocol is a standard used to define a method of exchanging data over

a computer network such as network, Internet, Intranet, etc. Each protocol has its own

method of how data is formatted when sent and what to do with it once received, how

that data is compressed or how to check for errors in data.

Hypertext Transfer Protocol

The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed,

collaborative, hypermedia information systems. HTTP is the foundation of data

communication for the World Wide Web. HTTP functions as a request-response

protocol in the client-server computing model. A web browser, for example, may be

the client and an application running on a computer hosting a web site may be the

server. The client submits an HTTP request message to the server. The server, which

provides resources such as HTML files and other content, or performs other functions

on behalf of the client, returns a response message to the client. The response contains

completion status information about the request and may also contain requestedcontent in its message body.

http://www.computerhope.com/jargon/i/intranet.htmhttp://www.computerhope.com/jargon/i/intranet.htm


13/47

CHAPTER-4 ANALYSIS

4.1 Detailed problem statement

Previous aptitude applications have many flaws that need to be addressed and should be

removed in order to make a better aptitude application.Disadvantages of previous application:

1. Performance of the user is not analyzed.2. No online test available.

The user performance is not analyzed in the previous application the user will waste timedoing the questions of same level over and over. Thought this judgment the user will toskip to higher level and save time not doing easy questions. Also the user may get stuckdoing the higher level than the user must be recommended to come down a level.

Online test is very important. Through online test the user gets updated with the new

questions. By giving the online test user will also to know the online ranking and willcapture more users to use this application. That will not only connect users but will createa better interaction between the user and the application.

The Pocket Aptitude App is rated in the top 5 aptitude applications in android marketdeveloped by SinduRajan and designed by YaliniKumaraguru. Pocket Aptitude is acollection of 1000+ quantitative aptitude questions and word problems frequently askedin competitive examinations and placement papers. It is designed as a preparation tool for job aspirants and those waiting to crack CAT, XAT, MAT, GRE, GMAT, SAT, NTSEand various bank exams. People with an inclination towards mathematics can use this appto sharpen their IQ, test their aptitude skills and enrich their knowledge. This application

has various fine points and flaws like it provides a good user interface but onlyquantitative tests are conducted. It provides score calculation for practice test but does notstore it for future reference. Another flaw is that the user gets the same set of questionseach time they appear for the test.

Logical Reasoning helps in improving problem-solving skills by focusing on LogicalReasoning Questions. Logical Reasoning will help you in preparation of admissions testsand other different kind of exams, but the user interface is not interactive, the user has toscroll horizontally to view the entire answer. It just has MCQ’s without timer for test andwithout score evaluation.

The Aptitude Interview Questions Application developed by Programmer world and the

Aptitude Questions Application developed by Lakeba Mobile Apps are the applicationsthat do not provide a test. They just consist of quantitative questions and answers, yetthey are in the list of top rated apps in android market. These apps can be used for justgaining some information, but not to test one’s knowledge. In Aptitude Interview



14/47

4.2 Analysis of Existing Technologies/ approache

4.3 Requirement Analysis, Feasibility Study, Resource Requirement

4.3.1 Requi rement Analysis

Information useful for designing this system is gathered. They are listed as follows: 1. Research papers to understand the underlying concepts.2. Need of the project in present scenario.3.

Environment in which the software would be useful.

Lastly, information is gathered related to the applications that are required by the users.There are different categories of users like developers, normal users etc. A user belongingto a particular category can easily find a particular application of that category.

4.3.2 Functional Requi rements : Functional requirements of the system describe the core part of the system and describe the main functionalities of the system. Functionalrequirements of the system proposed are as follows:

The application will help the student to practice general aptitude, verbal andreasoning for placement purpose.

Only authorized person can access related details.

The student can register themselves for using the application.

User can practice questions offline.

User can get their position(rank) among all the users of testing application.

User can have diffident levels in learning application and next question comeaccording to the level of previous.

The students can login through USER-ID and PASSWORD and give their exams. Administrator will be responsible for updating the site.

The organization can change questions and test papers whenever needed.

3.3.2 Non F unctional Requirement : Non Functional requirements are those whichspecifies the criteria for judging the performance of the system rather than testing thespecific behaviors. It particularly deals with degree of performance and not the way of performing the task. Non Functional Requirements shows how a system is supposed to beand to what degree. Also the specific qualities of the system are depicted by theserequirements.

The Non Functional requirements of our system are as follows:

Secur ity: - Security is the facility provided to protect the data and restrict theaccess from unauthorized user. This is realized using level security measures, firstlevel is by authenticating user using the credentials previously chosen by user andsecond level is encrypting the data according to the protocol chosen by the clientfrom the list given by the server.


15/47

Recoverabi li ty: - The system should be restored to the previous state in which itwas, when the user last used it. Users data must not get lost when the user closesthe system abruptly.

Usability: - The system should be easy to use. Any user not familiar with the

system should be able to interpret the vocabulary used in the system and easilyaccess.

Reliabili ty: - System should be reliable in the sense that it should work for anadequate period between two failures. Users must be confident of the reliabilityand must not fear for the failure at any time.

Configuration M anagement: - Configuration Management is used to maintainthe performance, operations and the consistency of the system. When the teamconsist of more than 2-3 members then problem of inconsistent changes in thedocuments is observed, thus for facilitating proper informed changes throughout

the team configuration management is required.

Cost: - Cost of the system should be affordable for the user.

Compatibility:- It should be compatible to android version (jelly bean) and afterthat.

Response Time: - Response time of the system should be under the specifiedlimits.

Scalability: - System should be scalable after practical implementation of the

project and should work for a large network and able to handle large number ofclients.

Deployment:- Deployment of the system must be very easy as the users using thissystem will have very less knowledge about the internal working and the sourcecode so that later on if the user changes the network he should not suffer from any problem.

4.3.3 Feasibi li ty Study

Feasibility is defined as the possibility and practicality of the proposed project.Feasibility study is done to identify the strength and weaknesses of the project. Thisfurther specifies the opportunities and the threats of the project. Other factors which areanalyzed in feasibility study are the resources available and the prospects of ultimatesuccess of the project. It not only focuses on the technical aspect of the project but on theeconomic aspect also. It is a process of analyzing, focusing, clarifying and resolving thekey issues that are subject to the viability of the project. Feasibility study is provided to


16/47

identify the primary issues related to the project idea. A project is possible or not isidentified by its feasibility study. The feasibility study focuses on helping answer theessential question of “should we proceed with the proposed project idea” All activities ofthe study are directed toward helping answer this question.

Feasibility study permits the team to describe the idea and its prospects on the paper before implementing it directly as chances of failure increase if the planning is not done properly with major issues like time, cost and technicality of the project. Risks andreturns associated with the project are identified during feasibility analysis. If the project promises for an adequate output with the specified input and available technologies thenwe should proceed with the proposed idea otherwise taking the considerations, onceagain do feasibility analysis and even if then the promising output is not obtained then the project idea must be dropped. Feasibility study is done before the business plan proposition because if the project seems to be viable then only the hard work should bedone on the planning otherwise whole project is ruined and nothing can be gained evenafter substantial amount of efforts and costs.

Decision making in the project is very important at the start of planning phase for thecontinuation of the project because based on that decision the project coming into realityis finalized and tried for execution with proper business plan and funding propositions.All these decisions of working on the project are taken into account only if feasibilitystudy is done and that too with taking all the constraints into the considerations. Also theissues related to the project idea are also analyzed at first and then proceedings areundertaken. The decisions like make or break are taken only after the study. Removing ofall the projected and analyzed roadblocks are done after the feasibility study.

Mainly three factors that it analyzes are market, finance and organizational aspects:1. Technical feasibility2.

Economical feasibility3. Operational feasibility

4.3.3.1 Technical Feasibi li ty: Technical Feasibility assesses the current resources andtechnology, which are required to accomplish user requirements in the software withinthe allocated time and for this, the software development team ascertains whether thecurrent resources and technology can be upgraded or added in the software to accomplishspecified user requirements.

The technical requirement for the system is economic and it does not use any otheradditional Hardware and software. Most of the LAN computers have these specifications,so they will not pose any technical feasibility issue.

4.3.3.2 Economic Feasibi li ty: This is the most frequently used method for evaluating theeffectiveness of a system. It is also called as a cost analysis. The system being developedis economic with respect to user point of view. It is cost effective in the sense that haseliminated the paper work completely.


17/47

The technologies used are readily available and will suffice for the development of oursoftware. Also for implementation of the software no special hardware resources areneeded. The application developed in android which is freely available and also providesoffline facility. So the budget would not become a constraint or a limiting factor for theapplication under development. Hence, the software is economically feasible.

4.3.3.3 Operati onal F easibi li ty: Operational feasibility study tests the operational scopeof the project to be developed. Operational scope normally means that the usability of the project must be very high. This means that the product at the end must be of use and ofusable quality and must provide the specifications as per the objectives determined.

Our project is for android platform so already available users on the android are the maintarget for this project. This is an offline application so it can access without internet.


18/47

4.4 Diagrams

4.4.1. Usecase Diagram

Figure 3.4.1: - Usecase Diagram


19/47

Figure 4.4.2: - Detailed Usecase Diagram


20/47

4.4.2.1 Usecase Description

Actors:

User-

User can register for the application.

User can login and enter password for access the application.

User can view his/her account of application and change password and followingoperation will do.

User can have a platform to learn for placement and apply for test.

Admin-

Admin can login and enter password for access the application.

Admin can update the questions.

Admin can view user details.


21/47

CHAPTER- 5 DESIGN

5.1 System Architecture Design

Figure 5.1.1: Architecture diagram


22/47

Figure 5.1.2: Architecture diagram (Administrator)


23/47

Figure 5.1.3: Architecture diagram (Test)


24/47

Figure 5.1.4: Architecture diagram (Learning)


25/47

5.1.1.1 Descri ption

Home -It represents the home page that user or admin will see in thestarting of the application. This page will have multiple options to go to.

Study mode - This mode will provide user with quiz divided in categories. During thequiz the user can see the solution too but that question will not count as part of

attempted question. Study mode will also have option to refer to notes of that topic.

Video Tutor ials - Video tutorial will not be downloaded along with the application but user will be given a link that will allow user to either stream the video ordownload it.

Tips and Tr icks - Tips and tricks will have formulae and short-trick which will help tosolve the questions quickly.

Scoreboard - The scoreboard will have a score of the user according the level the userstands at.

About us - A short description of our application will be in this section also includingcontact details in case of assistance.

Upload question – Only the administrator will have priority to upload questions .Questions will be uploaded using the excel file.

Conduct Test - Admin will upload a test only for a limited time for which the users

will be notified earlier. Test will have expire time and the test will be removedwhen expire time occurs.

Rank – Rank will have decided individually as per category.

Graphics - This module will provide GUI to users and admin.

Server - Apache tomcat server will be used to sync between MySQL database andSQLite database using PHP script as a interface between them.

Database - Database will be online as well as offline

Audio - Audio will be needed only during the time of tutorials.

Activity − Controls all aspects of the application lifecycle and activity stack.

Resour ce Manager − Provides access to non-code embedded resources such asstrings, color settings and user interface layouts.


26/47

Notif ications Manager − Allows applications to display alerts and notifications to theuser.

Vi ew System − An extensible set of views used to create application user interfaces.

Android Handset - Any handset that supports android version 4.1(jelly beans) orhigher.


27/47

5.2 Activity Diagram

Learni ng Activity

Figure 5.2.1: Activity Diagram 1


28/47

Login and Registration Activity



29/47

Testing Activity



30/47

Update and View Account Activity

Figure 5.2.4: ActivityDiagram 4


31/47

View Score and Update Question Acti vity



32/47

5.3 Entity Relational (ER) diagram

Figure 5.3: ER Diagram


33/47

5.3.1 DataBase Tables

Admin

Uname Pass

Table: 5.3.1.1

Student

Email Pass Cnumber Uname

Table: 5.3.1.2

Slevel

Semail Sname Slevel

Table: 5.3.1.3

Rlevel

Semail Sname 10 L1 L2 L3 L4

Table: 5.3.1.4

Testinfo

Tname Tdes Neg Time

Table: 5.3.1.5

Testques

Qid tname Ques A B C D Answer

Table: 5.3.1.6

Tr

Semail tname Percentile

Table: 5.3.1.7

Question

Id Sname Ques A B C D Answer Slevel

Table: 5.3.1.8

CHAPTER- 6 IMPLEMENTATION


34/47

6.1 Hardware and Software Used

Hardware requirement:

Hardware requirement of the target mobile phone:• RAM – 512MB.• Operating System - Android OS, v4.1.2 (Jelly Bean).•

CPU - Dual-core 1.2 GHz Cortex-A5.• Resolution – 480 X 800 pixels.• Pixel Density – 217 ppi.

• WiFi - 802.11 b/g/n.

Software Tools :

• Android Development Kit.• Native Development Kit.

• Android debug bridge/ Android emulator.

6.2 Description of Classes and Functions Used

We have three module in our project in which two of them module are based on Android andone is based on php. Learning and Test application are coded in Android and the third isAdmin website is coded in php.

6.2.1 Learning Module

In this application there are many methods and classes are commonly used:-

On create: onCreate(Bundle) is where you initialize your activity. Most importantly,

here we will usually call setContentView(int) with a layout resource defining UI, and

using findViewById(int) to retrieve the widgets in that UI that you need to interact with

programmatically.

In our project we call this method for user interface through activity_main.xml and also we

use onclicklistener() method.

OnCli ckListener I nterf ace : Interface OnClickListener is inside the View class. Thisinterface can be used for handling the button so it is implemented into MainActivityclass.

setOnClickListener(View.OnClickListener: This method takes the reference to theListener and registers a callback to be invoked when the View is clicked. So listener is present in the same class MainActivity for passing the reference using this.

setContentView(R.layout.activity_main): This method takes a layout and it set theview as the layout to the activity. We created a layout named activity_main.xml. As allthe ids for all the components are generated automatically and stored inside R.java fileso we are selecting the id of our layout from R.java file (R.layout.activity_main). It gets

http://developer.android.com/reference/android/app/Activity.html#onCreate(android.os.Bundle)http://developer.android.com/reference/android/app/Activity.html#setContentView(int)http://developer.android.com/reference/android/app/Activity.html#findViewById(int)http://developer.android.com/reference/android/app/Activity.html#findViewById(int)http://developer.android.com/reference/android/app/Activity.html#setContentView(int)http://developer.android.com/reference/android/app/Activity.html#onCreate(android.os.Bundle)


35/47

the resource object that represents the layout as defined by the XML file created by thedesigner and makes it the current ContentView i.e. it is what is displayed on the screen.

That is it makes the connection between the layout you have defined using the designerand stored in the XML file and the user interface that appears on the devices screen.

AsynTask: AsyncTask enables proper and easy use of the UI thread. This class allows

performing background operations and publishing results on the UI thread without

having to manipulate threads and/or handlers.

An asynchronous task is defined by a computation that runs on a background thread

and whose result is published on the UI thread. An asynchronous task is defined by 3

generic types, called Params, Progress and Result, and 4 steps:

called onPreExecute, doInBackground, onProgressUpdate and onPostExecute.

MainActivity.java : The entire control and workflow is described in this class. It hasmainly two methods oncreate() and setContentView().

In our project we call onclicklistener() four times for different purposes:-Help.class

Signup.class

Exit

Login: If user successfully login then the session will started after that longoperation

class will executed.

Longoperati on class : Longoperation class of mainactivity.java file is used to send the

data to server and to receive or get the response from the server. It will send email and

password to server “fp.php” and “fp.php” check the value in database and send reply to

mainactivity.java. If the user is valid user then sends to next activity (question.java).

For the background processing we use AsynTask class.

Help.java : It gives information about the learning application.

Signup.java : User can fill all the details then this file is used for check all the criteria is

correct or not, If it is correct then it will jump to Longoperation class.

Longoperation class of help.java file is used to send the data to server and to receive or

get the response from the server. It will send email and password to server “nu.php”

and “nu.php” get value from client and store it into database.

Question.java : We call oncreate() method for user interface through question.xml andonclicklistner() four times.

1. logical

2. Aptitude

3. Verbal


36/47

4. Result

If we click on logical, aptitude, or verbal we have list of category respectively and

choose any of them the username, category, level(0) is send to test.java file.

Testpage.java : we call Oncreate() method for user interface through tp.xml

First class- This class of Testpage.java file is used to send the data to server and to

receive or get the response from the server. It will send email, category, level(-1) to

server “qlvid.php” and “qlvid.php” reply user actual level and all level qid of the user.

Level shows the current status of the user and qid gives the position of question number

for that level of the corresponding category.

Long operation(): This method is call for every question to fetch each question. This

class of Testpage.java file is used to send the data to server and to receive or get the

response from the server. It will send category, qid(question id), level to server

“que.php” and “que.php” reply question of same category and next next of that qid. Our timer which is set to 20 minutes is start after every five question complete, and user

level is change according to the analysis of time and correct answer of attempted 5

questions and finds the accuracy and performance of the user.

If question is over or any error in given question then popup message is generated “No

more question in database”.

No more questions found:- If there is no more questions found in database or if the user

is already attend that question of a particular category after that if the same user again

click on that category and more questions are not available for that category . Then it

shows the popup message “No more question” because question are not repeated for the

same user.

Result : This activity has three buttons Aptitude Verbal and Logical. Each button has as

.setOnClickListener(). On clicking any three of the buttons ResultLoadActivity is

called.

ResultLoadActivity is called with the parameter email and the variable corresponding

to the button. In this class we call lresult.php which is on the server side. The sever

side code fetches all the subcategories and there levels from the database and is stored

on form of array and passed as an object to Jason. Now the control comes back to theResult.class.

onPostExecute() is called at last in which the JasonObject is returns the result of the

server side. As mentioned above and array was passed from the server side, this array is

now passed on to the adapter called ListAdapter. ListAdapter displays the array list on

the screen with the help of viewHolder class. Inflator is used here to convert the xml

elements to an object. Xml used to display the list is chiiled_list.xml.


37/47

6.2.2 Test Module

Activity_main.xml: This page has four buttons: Login, Help, SignUp, and Exit.

It also has a one text field User Login and two Edit View Email and Password used to

fetch information from the user.

MainActivity.java : This is the first activity that is called when the app is launched. First

method that is called on the start of the activity is onCreate(). onCreate method sets the

layout by calling the method setContentView(); ConnectionDetector class is used to

check used to check whether the user is connected to the internet or not. To implement

this we used and alert box to ask user to connect to the internet. If the user selects ‘NO’

the app closes immediately. If the user selects yes he is sent to the settings of the phone

with the help of intent class:

startActivityForResult(new Intent(android.provider.Settings.ACTION_SETTINGS ),0);

After Turning on the internet user gets 4 options:1.Login: If user successfully login then the session will started after that longoperationclass will executed.2.Help3.Sign up4.Exit

Help , Sign Up button calls the class Help.java and Sign Up.java respectively.

Exit button calls method finish() to simply finish the activity and exit.Longoperation class:- Longoperation class of mainactivity.java file is used to send the



mainactivity.java. If the user is valid user then sends to next activity (Tr.java).

Help.java : It gives information about the learning application.

Signup.java : User can fill all the details then this file is used for check all the criteria is

correct or not, If it is correct then it will jump to Longoperation class.

Longoperation class of help.java file is used to send the data to server and to receive or

get the response from the server. It will send email and password to server “nu.php”

and “nu.php” get value from client and store it into database.

Longoperati on class : Longoperation class of mainactivity.java file is used to send the




38/47

mainactivity.java. If the user is valid user then sends to next activity (TR.java). For the

background processing we use AsynTask class.

TR .java : onBackPressed(): user to avoid user form going back.

onCreate(): First method that is called as soon as the activity is launched. It contains

three buttons Test, Result and Logout.Test button calls the Questions.class.Result button calls the PreResult2.class.Logout button calls the MainActivity.class.

nextScreen.addFlags(I ntent.FLAG_ACTI VI TY_CLEAR_TOP): It is used to clear allcurrent running activities running in the background. This is important because as soonas the user comes to the home page and press the exit button or the back button, theuser must exit the application and not go to the previous activity.

Question.java :

Longoperati on class : In this class we call the server side file testinfo.php. This filegoes and fetches the all the test name available in the database. The list of test is savedto the arraylist.This list is then passed on to the adapter MyCustomAdapter.The task of this adapter is to simply display the list.

MyCustomAdapter.j ava : The adapter class uses-: Inflator is used to convert the xml elements to object. This is done to pass the object toview. Button is present to select the test user wants to attempt. This button callsTestPage.java.

PreResult2.java:

Longoperati on class : In this class we call the server side file testattemted.php. This filegoes and fetches the all the name of the test attempted by the user from the database.The list of test is saved to the arraylist.This list is then passed on to the adapter MyCustomAdapter2.The task of this adapter is to simply display the list.

MyCustomAdapter.j ava :The adapter class uses-: Inflator is used to convert the xml elements to object. This is done to pass the object toview. Button is present to select the result user wants to se. This button callsResult2.class.

Testpage.java : After clicking any of the test the email and test name send to the server precheck.php and precheck.php reply Boolean value True or False(with test time).Then an alert box is come whether user want to attend test or not by pressing on yes button then it directly goes to server with test name and email on teststart.php and this php file insert value in database tr table that user attempted the test so user can notapply test again in any case like timer is finish or click on exit button or finish test, So


39/47

the timer is started and set the timer value according to value get before so tr.php file iscall after test is finish. So the user data is updated and goes to result.java class.Questions come different for different user through shuffle() function.

Collection.shuffle(): The shuffle(List) method is used to randomly permute thespecified list using a default source of randomness.

Result.java : This class show the result of the user in which we display attempted andright answer .

6.2.3 Admin Module

We use some common methods and function to implement the Admin module.

POST() M ethod: The POST method transfers information via HTTP headers. The

POST method does not have any restriction on data size to be sent. The data sent by

POST method goes through HTTP header so security depends on HTTP protocol. By

using Secure HTTP you can make sure that your information is secure. The PHP provides $_POST associative array to access all the sent information using POST

method.

Md5(): md5 is stands for message digest 5 which is used to encrypt the secure

information like password.

Syntax - md5( string,raw)

The md5() function calculates the MD5 hash of a string. The md5() function uses the

RSA data Security. md5(); function is use to make your login system more secure.

Example: $password="123456"; md5($password);Use md5(); to encrypts password to make it more secure

Overview

These two databases, it's the same person and same info, the first one we don't encrypt his

password, but the second one we encrypted his password.


40/47

Admin1.php: This is the first file of the application in which user name and passwordof admin and the login button. If password or user name is not correct and it generatesthe error message or user can not login. After hit into login button the user name and password send to the login.php page for verifying the correct user through post()method.

Login.php: The user name and password is received by the post() method. After

receiving the user name and password it check connectivity to the database through the

mysqli_connect() function. If the connection is not detected then it generate error

message “Failed to connet to mysql”. If connection available then session is started,

user name is send to admin2.php page and logged in successfully. For the security

purpose we use MD5() encryption method to encrypt password of the admin.

Admin2.php: After login successfully Session is started for further processing . There

are four button display to admin:

Logout: If admin want to exit the session then he can hit on logout button and send tologout.php file.

Upload_Learning_Questions: If admin want to upload the learning question for the

learning application then he can hit on this button and send to browsefile.php.

Upload_Testing_Questions: If admin want to upload the Test for the Finaltest

application then he can hit on this button and send to testdetails.php file.

Create admin: If admin wants to create a new admin then only he have authority to

create new admin. When admin hit on create admin button it send on cradmin.php file.

Logout.php: Current session is finished through the session_destroy() function and

admin directly back to the admin1.php.

Browsefile.php: Admin will select the category among verbal, reasoning, and

quantitude.

After selecting the particular category it show the further options or subcategory of that

particular category. When admin select the subcategory then send on upload.php file.


41/47

Upload.php: Through post() method we receive the subcategory selected by the admin

and we have id of each subcategory mentioned in this page. For uploading the Excel

file of particular subcategory we have to mention path of file. After selecting the file it

checks whether file is in correct format or not. For Example:- File is already exist, File

is not an excel sheet, File is to large, File is fake or image.

If file is not successfully uploaded then it shows the error message “Sorry, there wa s an

error uploading your file”. And come back on browsefile.php. Otherwise forwarded on

questionupload.php.

Questionupload.php : It receive category name and file name with full address. Each

question is read and goes to database table.

Excel_reader2.php: Question files are excel sheets but we need to read the excel sheet

and store it into the database. So we use this file.

db.php : we define the server, username, password, database name in db.php file and

establish the connection using mysqli_connect() function in config.php file.

testdetails.php : Admin have to enter some details of particular test which is select by

the admin. Like- testname (tname), Negative marking (yes/no), time (Dynamic).

Through the post() method this information is passes to tdetail.php.

tdetail.php: It check all the details given by testdetail.php, if any details is incorrect or

missed, then again back on testdetail.php otherwise it link that details to database.It

checks some constraint like- test already present in database.

testupload.php: After selecting the file it checks whether file is in correct format or not.

For Example: File is already exist, File is not an excel sheet, File is to large, File is

fake or image. If file is not successfully uploaded then it shows the error message

“Sorry, there was an error uploading your file”. And come back on browsefiletest.php.

Otherwise forward on uploadtest.php

Uploadtest.php: It receive test name and file name with full address. Each question is

read and goes to database table. There is constrain in this file for test question if all

question of test is not uploaded then testinfo is not updated.

Cradmin.php: When admin create a new admin then it will goes on the signup.php file

through post() method with admin name and password by clicking submit button. Signup.php: After getting the admin name and password through the post() method, it

checks the connection by calling the config1.php and insert these admin information

into the database table (admin). If information is added successfully new admin is

created and it goes to admin2.php.

Config.php: This file is used for database connection. If the connection is not

successfully establish it shows the error message “Database Connection Failed”.


42/47

CHAPTER-7 TESTING & RESULTS

7.1 Test Cases/ Test Scenarios

Analysis of Time and Accuracy1. Time Required

Correct Answer Level

0-1 Level Down

2-3 Same Level

4 Level Up

Table 7.1.1

2. Time Required


0-2 Level Down3 Same Level

4 Level Up

Table 7.1.2

3. Time Required


0-2 Level Down

3-4 Same Level

Table 7.1.3

4. Time Required


0-3 Level Down

4-5 Same Level

Table 7.1.4

5. Time Required


0-4 Level Down

Table 7.1.5


43/47

7.2 Results

If we correct 5 answers then our level jumps by 2.

Figure 7.2.1: Screenshot 1

If we correct 1 answer out of five then our level decrease by 1.



44/47

If we didn’t correct any answer than our level decrease by 2.


If we correct 2 answer then our level is same.



45/47

CHAPTER-8 CONCLUSION & FUTURE WORK

8.1 Conclusion

Work carried out in Phase I

As our project work is divided into two phases, first phase is the requirement gathering,

analysis and design of the project and second phase is the implementation of the project. In

phase 1, we first gathered what are the requirements of our project. We searched about the

existing systems that are already present and the systems that are performing nearly equal tasks

that our intended system is supposed to perform. Then we discussed about the protocols

available to implement our proposed system. After that we listed the detailed Functional and Non-functional requirements. Then we did the feasibility study of our system whether the

technologies are available or not that can be used to implement it. Is this project possible

technically. After the feasibility it was then confirmed that the project is achievable in the

specified time restrictions. Then we listed the hardware support required to run the system and

software support to build this system. Then we discussed about the software development life

cycle models, which model should be used, and decided to choose Iterative model. Then, we

made the use case diagram to get the basic functionalities of the system. After use case

diagram, and use-case description we made architecture diagram of the system and following

it, the activity diagram, flowcharts, and ER-diagram are made.

Work to be carried out in Phase II

First phase aims to cover the three most important stages in software development life cycle

i.e. Requirement gathering, Analysis and Design. But the design part remains incomplete thus

it will be the first priority of the project to complete the diagrams of the design part. Design

part is very important stage in the SDLC model as properly designing all the aspects of the

projects will help in further implementing code and testing them. Even after that, in

assembling all the components and deploying all of them at their proper place would only

result in the correct output of the project.

As project is planned to follow object oriented approach and is performing the software

development in iterative as well as in modular manner, the project is in the design stage. The

next task to be performed would be the study of behavioral interaction between the identified

classes of the project. On the basis of that study, interaction diagram would be made and that

would be either sequence or collaboration diagram. Sequence diagram should be made as it

represents the interaction on the scale of timestamps and managing the order of object


46/47

interaction would be very crucial. The next thing to be done would to create a state chart

diagram for every object in the project and showing process flow on the occurrence of

different events. Modules can be created in respect of the similar functionalities provided by

the different classes and they can be divided among team members so that parallel

implementation of code can be performed. Similarly designs for test cases should also be c

reacted in advance for performing testing in the future.

After that, implementation of design can be started in the already chosen programming

language JAVA and Android. After the successful completion of different modules, test cases

should also be implemented using JUnit in JAVA and should be applied on the classes. This

would cover the unit testing for the project. After that, integration testing should be applied

after integrating respective modules and finally the whole assembling of modules will be

performed. After that Component diagram should also be made in order to show all the

executable components of the project and Deployment diagram for showing the actual

hardware implementation in the project. This would complete the 37 project in all respect as

this project need to be deployed on the Google Play Store. Testing the project properly and

assuring that it works properly for all the clients would finish the second phase of the project.

References:

• http://research.ijcaonline.org/volume94/number11/pxc3895954.pdf

• http://www.pocketaptitude.com/

• http://aptitude-test.com/verbal-aptitude.html


47/47

report on aptitude android app

Documents

Transcript of report on aptitude android app