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Systems Development Life Cycle: Objectives and Requirements
Source: http://www.benderrbt.com/Bender-SDLC.pdf
A systems development lifecycle (SDLC) has three primary objectives: ensure that high quality systems are delivered, provide strong management controls over the projects, and maximise the productivity of the systems staff. In order to meet these objectives, the SDLC has many specific requirements it must meet, including: being able to support projects and systems of various scopes and types, supporting all of the technical activities, supporting all of the management activities, being highly usable, and providing guidance on how to install it. The management activities include: setting priorities, defining objectives, project tracking and status reporting, change control, risk assessment, step wise commitment, cost/benefit analysis, user interaction, managing vendors, post implementation reviews, and quality assurance reviews. In order to meet all of the SDLC's objectives and requirements there are certain design approaches that are required: the SDLC must be an example of a system created using the techniques it espouses; it must use a layered approach to analysis, design, installation support and production support; it must keep distinct the "what" from the "how" in regards to doing the tasks and creating the outputs; and it must organise its information in a hierarchical manner so that users with varying degrees of familiarity can find what they want easily and quickly. Defining or selecting an SDLC should be undertaken as a project with full time resources who have the appropriate level of expertise. It is an extremely high leverage effort. It also represents a major cultural change for the staff.
QUESTION 2
The article above further states: “Defining or selecting an SDLC should be undertaken as a project with full time resources who have the appropriate level of expertise”. Briefly explain the predictive and adaptive approaches to the systems development life cycle (SDLC).
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