Sdlc

Submitted to: Prof. Priya Viz

It is a set of interacting or interdependent

entities forming an integrated whole.

Defn:-

The systems development life cycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project, from an initial feasibility study through maintenance of the completed application.

Waterfall model Rapid application development (RAD) Spiral model.

The waterfall model is a sequential software

development process, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design (validation), Construction, Testing and maintenance.

Before anything is implemented or written,

SDLC should always understand their customers in the first place. It’s just basic business to consider what is required and what’s in demand in today's market.

also known as feasibility study. Investigation of existing system. Recognizing need for new system. Submitting SRS document.

framework of the software is created. The software gains some foundation . what to work on.

The specifics of the software are elaborated. describe the desired software features in

detail, and generally include functional hierarchy diagrams, screen layout diagrams. requirements identified in the approved SRS are initial inputs.

• coding is the “operations” of the

software development plan. • design translated into a machinereadable form. • Programming tools like compilers, interpreters, debuggers etc... are used to generate the code. • Different high level programming languages like C, C++, Pascal, Java are used for coding.

bugs are found and some irregularities in the

software are somehow fixed. verify the correctness and completeness of the software. Testing will make sure the customer gets what they want all the time.

Also known as installation phase. implementation means releasing the software

for public beta-testing.

Once the program has been released, it will

not be left out alone. Developers will still work on the software full time as they will monitor its popularity and performance. the easiest part of the software development stage or the most difficult.

The structure imposed by this SDLC is specifically designed to maximize the probability of a successful software development effort. To accomplish this, the SDLC relies on four primary concepts: – Scope Restriction – Progressive Enhancement – Pre-defined Structure – Incremental Planning