there are different stages or phases within the software development life cycle and in each phase, different activities take place. the software development life cycle begins with requirement analysis phase, where the stakeholders discuss the requirements of the software that needs to be developed to achieve a goal. for example, in the waterfall or v model, the requirement analysis phase are saved in a srs (software requirement specification) document and needs to be finalized before the next phase can take place. during the design phase, developers and technical architects start the high-level design of the software and system to be able to deliver each requirement. the design is usually kept in the design specification document (dsd) after the requirements and design activity is completed, the next phase of the sdlc is the implementation or development of the software.
testing is the last phase of the software development life cycle before the software is delivered to customers. testers can either use a test script to execute each test and verify the results, or use exploratory testing which is more of an experience based approach. this cycle is repeated until all requirements have been tested and all the defects have been fixed and the software is ready to be shipped. once the software has been fully tested and no high priority issues remain in the software, it is time to deploy to production where customers can use the system. in agile, the duration to deliver a working software is typically between 2 to 4 weeks and so each of the above phases are shortened.
for example, a software has to be developed and a team is divided to work on a feature of the product and is allowed to work as they want. once the requirement gathering is done, an analysis is done to check the feasibility of the development of a product. in this phase, the requirement gathered in the srs document is used as an input and software architecture that is used for implementing system development is derived. in this model, the outcome of one phase is the input for the next phase. architecture, components of the product are created and documented in a design document.
system testing is performed in the system design phase. feedbacks are implemented and the prototype is again reviewed by the customer for any change. for example, feature to be developed in the iteration is decided and implemented. agile model is a combination of the iterative and incremental model. testing is done in each sprint to minimize the risk of any failures. example, in case of an unclear requirement, spiral and agile models are best to be used as the required change can be accommodated easily at any stage.
3. implementation. after the requirements and design activity is completed, the next phase of the implementation/coding starts once the of the software are implemented in objective: the objective of the implementation phase is: first to install the system in the production environment and to, sdlc implementation tracks, sdlc implementation tracks, software development life cycle phases, sdlc models, software development life cycle pdf. the implementation and coding phase of the software development life cycle is the third phase of the sdlc process. the first phase of the sdlc is the requirements gathering and analysis phase, which is when the project team and business managers gather the wants and needs of the customer.
6. implementation. the sixth phase is when the majority of the code for the program is written. additionally, this phase implementation coding: includes implementation of the design specified in the design document into several pitfalls can turn an sdlc implementation into more of a roadblock to development than a tool,
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