1. Lecture 2 Enterprise Information Infrastructure (EII)

2. Objectives What is an information system? System architecture Three different application scopes Detailed components of IT Overview of the following lectures

3. Business Strategy vs. Information Strategy To achieve what we want from our business: –Which information technology and/or information systems we use –How information technology and/or information systems are used are important for the success of our business

4. Information Systems (IS) Organized combination of various parts of information technology (IT) including: –People –Hardware –Software –Communications networks –Data resources That collects, transforms, and disseminates information in an organization

5. System Architecture System Architecture is the relationship among various components of IT in your company that permit the planning and integration of Information Strategy with Business Strategy –How various components of IT are put together and related to each other –How well various components of IT work together

6. Application Scopes IS used for business computing in a company can be categorized into three segments (based on application scope): End-user computing: standard office personal computing software Enterprise computing: control and optimization of business processes throughout the company Inter-organization computing: connection of computers across companies to share information

7. Components of EII Detailed components of IT in an enterprise: –Telecommunications –Computer Networks –Internet –Computing –Communication –Application Systems

8. Telecommunications Wired & Wireless telephone systems, Radio, Satellite, etc. Transmitting information in various forms – voice, digital data, graphics, video, etc. Creating information utility (store, retrieve, process) characterized by: –on-line, real-time functionality –numerous subscribers at remote locations

9. Computer Networks Interconnected computer devices that work together and share information with each other, for example: –Local Area Network (LAN) –Metropolitan Area Network (MAN) –Wide Area Network (WAN) –Global Area Network (GAN) –Value-Added Network (VAN)

10. Internet Tools and path to connect to global network –Internet technology –Internet economy –E-commerce –Dot-com

11. Computing Computer and Peripheral devices: desktop computer, notebook, hand-held computer, printer, scanner, etc. Operating Systems: manage the execution of application programs and data flow among hardware devices – Windows XP, Windows 2000, Unix, etc.

12. Computing Programming Languages: instruction to carry out the execution of application – C++, Visual Basic, Java Data Management: system to store, retrieve, and manage data used in business – Oracle, Access, MS SQL Development Tools: software used to develop other application software – MS FrontPage, Dreamweaver, Visible Analyst

13. Communication Systems that support effective business communication and collaboration Voice mail (answering machine) E-mail Fax Conferencing, E-Meeting, Brainstorming systems Bulletin Board: non-interactive conferencing system for posting information and comments

14. Communication Groupware: allowing shared electronic documents, calendars, scheduling Teleconferencing: live conversations – voice and full motion video Telecommuting: work arrangement EDI: sending electronic business documents from one computer system to others among business partners

15. Application Systems Application systems in business –Functional business systems –Cross-functional business systems

16. Components of EII Telecommunications: Lecture 4 Computer Networks: Lecture 4 Internet: Lecture 3 Computing: Lecture 5 Communication: Lecture 2 Application Systems: Lecture 6 & 7