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advantages and drowbacks of following a life cycle approach to information system development?
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SDLC has both verification and validation activities where as STLC has only validation activity. Simply STLC is a part of SDLC
SDLC refers to a stage all systems naturally undergo, a methodology refers to an approach invented by humans to manage the events naturally occurring in the SDLC
DDCMP does not need special hardware to find the beginning of a message
Requirements analysis phase
See the graph in the related link. It clearly separates out the differences between PDLC and SDLC.
what is the user requiremnet in the initial investigation of System development life cycle
The reason why you might not find differences in the sdlc and rad is because RAD is a more sped-up version of the SDLC. RAD is typically used in small to medium size projects, while the SDLC is generally used for large projects. Another difference is that in the SDLC, one can control the scope creep of the project, whereas that is very limited when one implements RAD because you give it up for faster implementation times. In RAD you have alot of feedback from the user to refine the program more to the aspects of the user, whereas you dont get the same user input in the SDLC. This feedback loop is another reason that RAD is sometimes chosen over the SDLC
what are the phases of the sdlc
The deliverables in the requirement gathering and analysis phase of the SDLC typically include a requirements document outlining business needs, functional requirements, non-functional requirements, and system constraints. Other deliverables may include use cases, user stories, workflow diagrams, personas, and a requirements traceability matrix to ensure alignment with project goals.
software engineering is the the management of different phases in SDLC to give a quality product. Software manufacturing refers to the whole process from scratch to end.
explain spiral model in sdlc
SDLC stages by taking example of EDP department SDLC stages by taking example of EDP department