Midterm NotesCH3 - Chapter 3: Information Systems...

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Chapter 3: Information Systems Development -Systems development Process: A set of activities, methods, best practices, deliverables, and automated tools that stakeholders use to develop and continuously improve information systems and software. -The Capability Maturity Model(CMM): A standardized framework for assessing the maturity level of an organization’s information systems development and management processes and products. It consists of 5 levels of maturity. There are 5 maturity levels: Level 1: Initial: No consistent Process. Theres usually success or failure depending on the skill and experience of the team. Each team uses own tools. The process is unpredictable. Hence, too many problems and complications. Level 2: Repeatable: Project management processes track project, its cost, schedules and functionality. Project managers play the major role in this phase. Intensive effort is made to track previous project success. This phase lays the foundation for standardized process in the next phase. Level 3: Defined: A standard System development process, called Methadolgy, is purchased or developed. All projects use that standard methodology for consistency. The process is stable, predictable and repeatable. This is the most important level where the organizations can discover significant improvements in schedule and cost by institutionalizing CMM level3 process improvements. System Development Methadology: a formalized approach to the system development process, a standardized process that includes the best activities, methods, practices, deliverables and automated tools to be used for information systems development. Level 4: Managed: Measurement of quality and efficiency and productivity occurs. Better management, better time, scope and budget. More data analysis. Hence, when the project encounters unexpected problems the processs can be adjusted based on predictable measures. Level 5: Optimizing: Standardized system development, methodology, is continuously monitored and based on measures and data analysis prepared in level 4.Changes and adjustments in the process are made. Increased efficiency and quality are incurred. -System Development Life Cycle: The factoring of a lifetime of an information system into 2 stages. (1) Systems development, explained in details before. (2) Systems operation and maintenance, where after building a system you use it and you perform maintenance on it. So you cycle back to redevelopment of a new system. -System Development Methadology: A standard process to build and maintain that system and all other information systems in their life cycles. Benefits: (1) One approach is applied to all projects. (2) Reduced risk (3) Complete and consistent documentation for each project (4) System analysts, users, designers can be quickly reassigned since they all use the same process. (5) When staff is changed those who follow can easily retrieve prior work.
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This note was uploaded on 11/09/2011 for the course MISC 350 taught by Professor Kiturberg during the Spring '11 term at University of Arkansas – Fort Smith.

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Midterm NotesCH3 - Chapter 3: Information Systems...

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