Into to Info Sys Lec 2 - Information System Building Blocks...

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Information System Building Blocks and the Systems Development Life Cycle IE 154 Lecture 2 ERLJ/EGA
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2-2 Objectives Differentiate between front - and back-office information systems. Describe the role of information systems architecture in systems development. Identify three high-level goals that provide system owners and system users with a perspective of an information system. Identify three technologies that provide system designers and builders with a perspective of an information system. Identify three areas of focus for an information system
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2-3 Objectives (cont.) Describe four building blocks of the KNOWLEDGE goal for an information system. Describe four building blocks of the PROCESS goal for an information system. Describe four building blocks of the COMMUNICATIONS goal for an information system. Describe the role of network technologies as it relates to Knowledge, Processes, and Communications building blocks.
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3-4 Objectives (cont.) Differentiate between the system life cycle and a system development methodology. Describe 10 basic principles of system development. Define problems, opportunities, and directives the triggers for systems development projects. Describe the PIECES framework for categorizing problems, opportunities, and directives. Describe the essential phases of system development. For each phase, describe its purpose, inputs, and outputs.
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2-5
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2-6 Front- and Back-Office Information Systems Front-office information systems support business functions that extend out to the organization’s customers (or constituents). Marketing Sales Customer management Back-office information systems support internal business operations of an organization, as well as reach out to suppliers (of materials, equipment, supplies, and services). Human resources Financial management Manufacturing Inventory control
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2-7 A Federation of Information Systems
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2-8 Information System Applications
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2-9 Information Systems Architecture Information systems architecture - a unifying framework into which various stakeholders with different perspectives can organize and view the fundamental building blocks of information systems.
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2-10 High-Level Goals of System Owners and System Users Improve business knowledge Improve business processes and services Improve business communication and people collaboration
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2-11 Technology Perspectives of Database technologies that support business accumulation and use of business knowledge Software technologies that automate and support business processes and services Interface technologies that support business communication and collaboration
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2-12 Focuses for Information Systems Knowledge — the raw material used to create useful information. Process
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Into to Info Sys Lec 2 - Information System Building Blocks...

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