System Development Life Cycle Essay

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Information system is created and developed to solve problems and full fill humans needs for example business. System Development Life Cycle (SDLC) is the overall process of developing an information system. Devi(2012) mentions that SDLC is known as Software Development Life Cycle in engineering field. SDLC is the foundation methodology for all system development. There are many unique activities associated with each phase in SDLC. SDLC is comprised of seven phases: identify the problems, objective, and opportunity, determining human information requirements, analyzing system needs, designing the recommended system, developing and documenting software, testing and maintaining the system, and implementing and evaluating the system. (Kendall & Kendall, 2011) (refer to Figure 1 in Appendix 1). The first phase of SDLC is identifying problems, opportunities, and objectives. This is the most important and the most critical phase among all the seven phases of SDLC because it will determine the success of the rest of the project. The activities that will undergo are interviewing user management, summarizing the knowledge obtained, estimating the scope of the project and lastly are documenting the results. The output is the management team make a decision whether to proceed with the proposed project based on the feasibility report containing objective and problem definition of the project (Kendall & Kendall, 2011). The system planning and selection have two primary activities there are the organization examine the information needs and identifies the need for a new or enhanced system. During the system planning and selection phase, an organization determines whether resources should be devoted to the development or enhancement of each in... ... middle of paper ... ...rried out routinely throughout the life of an information system to correct previously undetected errors. Bender RBT Inc (1984) reported that there are three primary activities involved in the maintenance phase are: build a help desk to support the system users, perform system maintenance, provide an environment to support system changes. The final phase of the system development cycle is implementing and evaluating the system. Simple training is involved in this phase. Users are trained in order to ensure users can handle the system correctly and effectively. Kendall(2012) indicates that vendors do some training, but oversight of training is the responsibility of the system analyst. Other than that, system analyst is responsible to plans smooth conversion from old system to a new system. The outputs of this final phase are trained personnel and installed system.
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