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The systems development life cycle (sdlc) is a methodology used to develop information systems in a structured and organized manner. It consists of seven phases: planning, analysis, design, development, testing, implementation, and maintenance. In each phase, specific activities are carried out to ensure the successful development of the system. An overview of the sdlc, its phases, and the key activities involved in each phase.
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The Systems Development Life Cycle March 19 – March 23
must be followed. The systems development life cycle (SDLC) is an attempt to structure these steps (p. 278). o From the perspective of a definition, the SDLC is a structured step-by-step approach for developing information systems (p. 278). o When developing a system, there are three primary choices you will make very early in the process (p. 279):
organization. o The SDLC has seven phases:
developing your information system (p. 279).
management, defines and develops the project plan, and tracks the plan to ensure all key project milestones are completed on time (p. 280).
Define the system to be developed. Identify and select the system for development or determine which system is required to support the strategic goals of your organization.
organization’s success. Set the project scope.
requirements and is the most basic definition of the system.
scope and is usually no longer than a paragraph. Define the project plan.
systems development activities including all activities to be performed, the individuals, or resources, who will perform the activities, and the time required to complete each activity (p. 279).
certain group of activities performed (p. 280).
together to gather, understand, and document the business requirements for the proposed system (p. 281. o The primary activity of this phase is to gather business requirements. Business requirements are the detailed set of knowledge worker requests that the system must meet to be successful (p. 281).
development (JAD) session , knowledge workers and IT specialists meet to define and review business requirements (p. 281). o Once all the business requirements are defined, the end-users sign off on them indicating that they approve of all the business requirements (p. 281). o One of the keys to success in the analysis phase is to find errors in the business requirements and the project plan. Errors are much cheaper to fix here than later in the SDLC as indicated by Figure 6.4, p. 282 (p. 282).
o Secondly, provide training for the knowledge workers. You must ensure that all of the knowledge workers have the required training to use the system correctly (p. 286).
are sure that the new system performs correctly.
the new system
system until you know it works correctly, and then adding the remaining people to the system.
time. Phase 7: Maintenance: o During the maintenance phase of the SDLC, you monitor and support the new system to ensure it continues to meet the business goals (p. 287). o First, you will need to create a help desk to answer your worker’s questions (p.287). o Secondly, you will need to change the system as your business changes (p. 287).