What is system development life cycle (SDLC)? Explain each phase of SDLC in detail

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Suresh Chand · Accepted Answer

System analysis and design are the complex, challenging, and simulating organization processes that a team of business and system professionals uses to develop and maintain computer-based information systems. It is an organizational improvement process. Information systems are built and rebuilt for their benefit. Phases of SDLC: When developing the information system, most organizations use a standard set of steps called the system development life cycle (SDLC). It includes Five phases: Planning, Analysis, Design, Implementation, and Maintenance. 1. Planning : This phase begins after the project has been defined and appropriate resources have been committed. The first part of this phase involves collecting, defining, and validating functional, support, and training requirements. The second portion is developing initial life cycle management plans, including project planning, project management, Configuration Management (CM), support, operations, and training management. We cannot just go and build the system. 2.  Analysis: System requirements are studied and structured in this phase. System analysts collect facts from existing system users in order to develop limitations and details. They will also define new system objectives. They use different data-gathering techniques such as interviews, observations and surveys. This is an attempt to understand all aspects of the current system and eventually indicate how things may be improved by a new system. 3. Design: Describes how the system will fulfill the user requirements. To achieve this, the logical and physical design must be created. The logical design produced during the analysis is turned into a physical design – a detailed description of what is needed to solve original problem. Input, output, databases, forms, codification schemes, and processing specifications are drawn up in detail. In the design stage, the programming language and the hardware and software platform in which the new system will run are also decided. The data structure, control process, equipment source, workload and limitation of the system, Interface, documentation, training, procedures of using the system, taking backups, and staffing requirements are decided at this stage. 4. Implementation: This is followed by testing and then implementation. During this phase, the new or enhanced system is installed in the production environment, users are trained, data is converted, the system is turned over to the sponsor, and business processes are evaluated. This stage includes efforts required to implement, resolve system problems identified during the implementation process, and plan for sustainment. Coding – the physical design specifications are turned into working computer code. Integration and Testing– a testing environment is created where all components are brought together. Installation – here the new system is rolled out. 5. Maintenance: After the user acceptance of the new system is developed, the implementation phase arises. Implementation is the stage of a project during which theory is turned into practice. The major steps involved in this phase are: Acquisition and Installation of Hardware and Software Conversion User Training Documentation

What is system development life cycle (SDLC)? Explain each phase of SDLC in detail

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What is system development life cycle (SDLC)? Explain each phase of SDLC in detail

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