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08/09/2010 1 Dirección de Tecnologías de Información COM-16101-001 Resumen de Temas 8 de Septiembre de 2010 Dr. Víctor M. González y González [email protected] Agenda 1. Observaciones en cuanto a temas relevantes para el examen parcial
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08/09/2010
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Dirección de Tecnologías de Información COM-16101-001
Resumen de Temas8 de Septiembre de 2010
Dr. Víctor M. González y Gonzá[email protected]
Agenda
1. Observaciones en cuanto a temas relevantes para el examen parcial
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Chapter 1: Doing Business in the Digital Economy
Digital EconomyThe digital economy refers to an economy baed on digital technologies and whose members are better informed and able to communicate because IT. The term is used to emphasize the convergence of computing and telecommunication via the Internet –and the resulting flow of information that is stimulating e-commerce, online transactions, and organizational changes.
Chapter 1: Doing Business in the Digital Economy
Digital EconomyThe digital economy os flooded with digital products and services such as:1. Information and entertainment products that are digitized.
1. Graphics, audios, videos and software
2. Processes and services1. Government services2. Electronic messaging3. Auctions4. Remote education, telemedicine5. Interactive entertainment, social networks and virtual communities.
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Business Models in the Digital Economy
• A business model is a method of doing business by which a company can generate revenue to sustain itself. The model specifies how the company creates or adds value in terms of the goods or services the company produces in the course of its operation.
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New Economy vs. Old Economy
Netflix
Blockbuster
Movies.yahoo.com
Which is better?
Figure 1.6
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Chapter 2: Information Technologies: Concepts and Definitions
Information Systems Information System is one that collects, processes, stores, analyzes, and disseminates data and information for a specific purposes. The composition of informations systems is usually the same: each contains hardware, software, data, procedures, networks and people.
Data, Information, Knowledge
Information: data that has been organized so that they have meaning and value to the receipient.
Data: elementary description of things, events, activities, and transactions that are recorded, classified, and stored, but not organized to convey any specific meaning.
Knowledge: data and/or information that have been organized and processed to convey understanding and experience, accumulated learning and expertise as they apply to a current problem or activity
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Levels of Information Systems
Chapter 2: Information Technologies: Concepts and Definitions
Transaction Processing SystemsAny organization that performs periodic financial, accounting, and other routine business activities faces repetitive information processing tasks. The information system that supports such processes is called the transaction processing system.
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Transaction Processing Systems
Chapter 2: Information Technologies: Concepts and Definitions
Functional and Management Information SysThe primary functional information Systems are organized around the traditional departments in a company. Typically, a functional system provides periodic reports about such topics as operational efficiency, effectiveness, and productivity by extracting information from databases and processsing it according to the need of the user.
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Chapter 2: Information Technologies: Concepts and Definitions
Enterprise Information SystemsEnterprise systems support business processes that are performed by two or more departments. Enterprise systems usually integrate tasks done in different departments. One of the most popular ES is Enterprise Resurce Planning (ERP), which enables companies to plan and manage the resources of an entire enterprise. Other popular ES are custumer relationship management (CRM) or Knowledge Management (KM).
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Chapter 3: Data Management
Data ManagementThe goal of data management is to provide the infrastructure and tools to transform raw data into usable corporate information of the highest quality. Companies invest in data management technologies that increase:a. The opportunity to earn revenues (e.g. CRM)b. The ability to cut expenses (e.g. inventory management).
Data Management:
Structured approach for capturing, storing, processing, integrating, distributing and archiving data
effectively throughout their life cycle
Life cycle:
The way data travels through an organization from their capture or creation to their use and final disposal
Chapter 3: Data Management
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Chapter 3: Data Management
Problems and Challenges1. External data that need to be considered in making
organizational decisions are constantly increasing in volume2. Data are scattered throughout organizations and are collected
and created by many individuals using different methods and devices. Data are frequently stored in multiple servers and locations and also in different computing systems, databases, formats, and computer languages.
3. Data security, quality and integrity are critical, yet easily jeopardized.
4. Data are being created and used offline without going through quality checks; hence the validity of the data is questionable.
5. Data throughout an organization may be redundant and out-of date, creating maintenance problems for data managers.
Chapter 3: Data Management
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Database Management SystemsA program that provides access to databases is known as a database management system (DBMS). The DBMS permits an organization to centralize data, manage them efficiently, and provide access to the stored data by application programs.
Chapter 3: Data Management
Database Management SystemsThe major data functions performed by a DBMS are:• Data filtering and profiling: inspecting the data for errors, inconsistencies, redundancies, and incomplete information.• Data quality. Correcting, standardizing and verifying the integrity of data. • Data synchronization. Integrating, matching or linking data from disparate sources.• Data enrichment. Enhancing data using information from internal or external data sources.• Data maintenance. Checking and controlling data integrity over time.
Chapter 3: Data Management
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Data warehouse
• A data warehouse is a repository (collection of resources that can be accessed to retrieve information) of an organization's electronically stored data, designed to facilitate reporting and analysis .•The main source of the data is cleaned, transformed and cataloged and is made available to be used by managers and other business professional for data mining, online analytical processing, market research and decision support.•Data warehousing arises in an organization's need for reliable, consolidated, unique and integrated analysis and reporting of its data, at different levels of aggregation.
Chapter 3: Data Management
Data Warehousing
Copyright 2010 John Wiley & Sons, Inc. 3-36
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Chapter 4: Networks and Collaborations
Important topics1. Networked Devices / IP Networks2. Information Portals and types3. Wifi / WiMax / VoIP (next slides)4. Search Engines5. Virtual Teams
Chapter 4: Networks and Collaborations
Wi-FiA Wi-Fi enabled device such as a personal computer, video game console, mobile phone, MP3 player or personal digital assistant can connect to the Internet when within range of a wireless network connected to the Internet. The coverage of one or more (interconnected) access points —called hotspots — can comprise an area as small as a few rooms or as large as many square miles. Coverage in the larger area may depend on a group of access points with overlapping coverage.
Source Wikipedia
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Chapter 4: Networks and Collaborations
Wi-MAXWiMAX (Worldwide Interoperability for Microwave Access) is a telecommunications protocol that provides fixed and fully mobile internet access. The bandwidth and range of WiMAX make it suitable for the following potential applications:– Providing portable mobile broadband connectivity across cities and
countries through a variety of devices.– Providing a wireless alternative to cable and DSL for "last mile" broadband
access.– Providing data, telecommunications (VoIP) and IPTV services (triple play).– Providing a source of Internet connectivity as part of a business continuity
plan.– Source Wikipedia
Chapter 4: Networks and Collaborations
VoIPVoice over Internet Protocol (VoIP, Voice over IP) is a general term for a family of methodologies, communication protocols, and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.
Source Wikipedia
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Chapter 5: Securing the Enterprise
Important topics1. Relevance of Security Breaches 2. Unintentional Threats vs Intentional Threats3. Methods of Attack on Computing Facilities4. General Steps of a Defense Strategy
Chapter 6 and 7: E-commerce
Important topics1. E-commerce definition and examples2. E-Commerce business models (Table 6.1)3. Benefits of E-commerce4. Business-to-Business Apps5. E-credit6. RFID
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Chapter 8: Social Networks
Important topics1. Web 2.02. Virtual Communities3. Business Oriented Social Networks 4. Web 3.0
Information Work
Important topics1. Definition of Information/Knowledge Work2. Characteristics of IT-service work3. Polychronicity4. Characteristics of Multitasking in the Workplace
