SDLC

                                                System Development Life Cycle (SDLC)

                A standard process is follows in an organization to conduct all the steps necessary to analyze, design to implement and maintain the information system.

SDLC is a common methodology for system development in many organization featuring several phases that marks the progress of system analysis and design effort traditional methodology use to development, maintain and replace information system. SDLC used in any organization in an orderly set of activity conduct and plant for each department project.

Initial Investigation         

                                        It is a very first phase of SDLC one must know what the problem is because it can be solved. The basis for a system is recognition of a need for improving and information system.

Feasibility study

                                 A feasibility study is attest of a system proposal according to its work ability, impact on the organization ability to meet users need and effecting use of resource.

There are basically few types of feasibility study

·         Technical feasibility

·         Behavioral feasibility

·         Operational feasibility

·         Legal feasibility

Analysis

                During analysis data is collected on the other level files, decision, points, and transection handle by the present system .interviews, site observation and questioners are the examples that are most beneficial.

Design

             Most creative and challenging face of the SDLC is system design term design describes a final system and the procedure by which it is developed it also include the construction of  a program and program testing the first step is to determine how the output is to produce and what format.

Implementation

                               Implementation phase is less creative then system design it is concerned with users tracing side representation when the system is linked to terminal the telecommunication network and test of the network along with the system.

Implementation is concerned with details

·         The physical creation of the system.

·         The key point is actual operation and acceptance testing before system is released.

 Maintenance

                                            After implementation maintenance begin this include enhancement, modification or change from the original specification. This phase terminates SDLC after the maintenance the phase is completed and the user staff is adjusted and to the created by the system if the new information is consistence with design specification then change have to made.