Application Development for Mobile and Ubiquitous Computing
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Department of Computer Science Institute for System Architecture, Chair for Computer Networks Dr. Ing. Thomas Springer Technische Universität Dresden Chair of Computer Networks Application Development for Mobile and Ubiquitous Computing Seminar Introduction
Transcript of Application Development for Mobile and Ubiquitous Computing
Department of Computer Science Institute for System Architecture, Chair for Computer Networks
Dr. Ing. Thomas SpringerTechnische Universität Dresden
Chair of Computer Networks
Application Development forMobile and Ubiquitous Computing
Seminar Introduction
Slide 2Dr. Thomas Springer
Basic Idea
§ To implement your (first) app§ To familiarize with one of the popular implementation
platforms for Mobile and Ubiquitious Computing§ Design specific mechanisms to adapt your App
according to some relevant context§ It will help you to understand basic idea of this course§ These concepts are one of the basic parts of the exam
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 3Dr. Thomas Springer
Organization
§ You should work in groups of 2 students!!!
§ You have to define your own app idea• Define an application scenario from the domain of mobile and
ubiquitous computing• Select a mobile device platform for implementation• Develop a concept for adapting your App
§ Three presentations• First presentation: App Idea and Basic Concept• Second presentation: Adaptation concept• Final presentation: Final App
§ Colloquium• Groups present their running app and project on individual
appointment
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 4Dr. Thomas Springer
First Presentation
§ Please prepare a presentation for max. 8 minutes!!!!
§ First presentation should include• present the application scenario in detail• show use cases, e.g. a mockup!!!• identify in detail the challenges of mobile computing you
want to tackle• Present an idea of two specific adaptations of your app• define the technologies you intent to use• propose an architecture• work plan
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 5Dr. Thomas Springer
Presentation of Adaptation concepts
§ Please prepare a presentation for max 8 minutes!!!!
§ Adaptation concept presentation should include:• A set of specific context features you capture to
control your adaptation• The description of at least 2 spcific adaptation
mechanisms for your App• The method to map your considered context features
to parameters for controlling your adaptationmechanisms
• The detailed architecture of your App• The technologies for implementing all conponents of
your App
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 6Dr. Thomas Springer
Final Presentation
§ Please prepare a presentation for 8 minutes!!!!
§ Final presentation should include• Present the application scenario with use cases,
screenshots, a video or the running application• Describe the final architecture, components and
interaction between components• Describe the technologies adopted for each component• Discuss in detail the challenges of mobile computing you
have tackledo What adaptation mechanisms have been usedo What context information has been involved
• Discuss open issues and lessons learned
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 7Dr. Thomas Springer
Submission and Finalization
§ Submission is by sending the slides by email to• [email protected]• Name document groupXX.pdf• Mail subject: [ADMUC18]
§ Project state and results are shown on lecture web page• please refer to „Seminar task list“
§ A colloquium will be held based on individual appointments with each team at the end of the term which includes:• presenting the running application• explaining the project• discussing adaptation mechanisms, used context and further
lecture content considered during the development of the App
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 8Dr. Thomas Springer
Schedule
§ First presentation: App Idea and Basic Concept• You should present your task description and technology selection• Slide submission: 01.11.2018• Presentation date: 02.11.2018.
§ Second presentation: Adaptation concept• You should present at least two concrete mechanisms to adapt your
App and how they are controlled by particular context information• Slide submission: 07.12.2018• Presentation date: 14.12.2018
§ Final presentation: Final App• You should present your adaptation concept and final results• Slide submission: 31.01.2019• Presentation date: 01.02.2019
§ Colloquium• End January, Begin February (dates will be announced)
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 9Dr. Thomas Springer
HOW TO DEFINE YOUR SEMINAR TASK?
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 10Dr. Thomas Springer
Think your own task
§ Select an application scenario relevant for Mobile and Ubiquitous Computing
§ Scenario should tackle at least one of the challenges mentioned in the first lecture
§ Scenario should include specific mechanisms for context awareness and adaptation
§ Could be a stand-alone App on a mobile device or a distributed application with server component
§ Implementation should be based on a mobile device platform • Android• iOS• Cross-Platform tool
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 11Dr. Thomas Springer
EXAMPLESocial Fitness App
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 12Dr. Thomas Springer
App Idea
§ Social Fitness App• Wristband/Smart Watch + Smartphone/Tablet App
§ Track all your fitness activities with minimal user input• Recording of activity states and content (images, videos,
track record, curve with pulse, etc.)• Activity Timeline - Posting own activities and see others‘
activities in an integrated timeline with text, images, videos, etc.
• Management of training schedule and planning oftraining activities
• Managing competitions with ranking
Slide 13Dr. Thomas Springer
Mockups
Running Competition June 27, 2016
5.7 km: 26:39Beate„cooler Lauf bei herrlichem Wetter“
Cycling June 26, 2016
27.3 km: 26:39You„Erste Etappe war eine einzige Quälerei, beim nächsten Mal geht’s bestimmt besser“ ...mehr
Training schedule June 28, 2016
Second Stage - CyclingYouWarning: Bad conditionsexpected !!!
CyclingJune 26, 2016
27.3 km: 26:39„Erste Etappe war eine einzige Quälerei, beim nächsten Mal geht’s bestimmt besser“
Slide 14Dr. Thomas Springer
Challenges
§ Connectivity• Low data rate and high delay in cellular networks• Intermittent connectivity due to weak connections and network
changes
§ Offline Phases• Limited coverage, unavailability of servers• To save energy, flat rate contingent, or communication cost
§ Form Factor• Limited Resources (CPU, memory, display size) • Diversity of device classes (Smart Watches, Smartphones,
Tablets) and device platforms (iOS, Android, Windows Mobile)
Slide 15Dr. Thomas Springer
Adaptation mechanisms
§ Automatic detection and tracking of sports activities• Accelerometer based activity tracking• E.g. GPS is activated only if running or cycling activity to save
energy• Higher sensing frequency is applied when walking or running is
detected§ Sharing (upload and download) of activities to social
network• Queueing for upload and download• Filtering (cycling related activities only), lossy conversion and
lazy evaluation for data download• Prefetching and Caching of data (e.g. proactive download of
activity content)
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 16Dr. Thomas Springer
Architecture and Technologies
§ Android§ Node.js REST Service on Server§ Mongo DB
Server
User and Team data(workout, challenges, etc.)
Cycling
June 26, 2016
27.3 km: 26:39„Erste Etappe war eine einzige Quälerei, beim nächsten Mal geht’s bestimmt besser“
Slide 17Dr. Thomas Springer
Example Work plan
§ 21.10.2013: Begin of iOS / Objective-C tutorial (weekly until 03.02.2014)
§ 24.10.2013: Begin of implementation§ 01.11.2013: First presentation
§ 21.11.2013: First prototype§ 20.12.2013: Second presentation
§ 20.12.2013: Begin of testing on real devices, bugfixing on iPhone 4S / 5
§ 31.01.2014: Final presentation§ 31.01.2014: Launch in the App Store
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
• think about teamorganisation
• assign responsibilities in team
• make yourself familarwith platform anddevelopment tools
• think about context andadaptation
• start early withimplementation
• develop agile -> featureplanning and peridicreleases of running code
• plan time for testing andbugfixing
• deploy and test with real devices
Slide 18Dr. Thomas Springer
Further Examples
§ MusIQ• Simple music player with
basic functionality• Application fetches additional
information (video, biography, discography, nearby events) according to currently playing song and user location
§ CarSurfing• Supports matching between
hitch hikers and car drivers• uses direction and GPS
information• visualization on Google Maps• integration of Facebook to
increase security
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 19Dr. Thomas Springer
Further Examples
§ Lunchbox• ultimate mensa guide
providing information about the meals at the refectories including students ratings
• data provided at server, scraped from Studentenwerk page
§ MusicMap• find the places where your
favourit music is played• integrates LastFM• uses location and genre to
cluster users• visualization on Google
Maps
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
