Posts Tagged ‘ Systems Development Life Cycle

System Development Life Cycle

Abstract

“The Systems Development Life Cycle  (SDLC) in systems engineering, information systems and software engineering, is the process of creating or altering systems and the models and the methodologies that people use to develop these systems. The concept generally refers to computer or information systems[1].

SDLC also is the entire process of formal, logical steps taken to develop a software product. Within the broader context of Application Lifecycle Management (ALM), the SDLC is basically the part of process in which coding/programming is applied to the problem being solved by the existing or planned application[2].

So basically Systems Development Life Cycle is used to analyze a business problem and transform it into an IT solution. 

Introduction

This article will be demonstrating the “systems development life cycle” the history, the phases which are: planning, analysis, design , coding, testing, and finally maintenance.     The use of computers has exploded. Nowhere is this more evident than in the workplace. Computers run even manufacturing facilities. Can you just decide to throw some software program into a multi-million dollar manufacturing facility or financial institution and hope it works without breaking down? No one would want to take the chance. Do our computers have enough memory? Will it interfere with other programs? Does it really do what it is supposed to do? For that questions SDLC was developed.

Main Themes

Systems Development Life Cycle (SDLC) is a process used by a systems analyst to develop an information system, including requirements, validation, training, and user (stakeholder) ownership. Any SDLC should result in a high quality system that meets or exceeds customer expectations, reaches completion within time and cost estimates, works effectively and efficiently in the current and planned Information Technology infrastructure, and is inexpensive to maintain and cost-effective to enhance.[3]

In project management a project can be defined both with a project life cycle (PLC) and an SDLC, during which slightly different activities occur. According to Taylor (2004) “the project life cycle encompasses all the activities of the project, while the systems development life cycle focuses on realizing the product requirements”.[4]

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