REAL TIME PROJECT
Software Development Life Cycle(SDLC) comprises of the following different stages.

1. Gathering Customer Requirements: In this phase; information is gathered from the customer , if some information are missing then we need to go to customer and take the required information. Mainly this is done by the Business Analyst as they are the one who are completely involved in Software Development life Cycle.
Entry Criteria: BRS/CRS/URS.

2. Requirement Analysis: The Features and the functions that need to be put in the project are determined.
Entry Criteria: Business Requirement Document
Exit Criteria: SRS (Software Requirement Specification) or FCR

3. Design Phase: The actually flow of the project is done here. Deciding upto logical functionality, ER diagram, Data Flow etc are made. These activities would be executed by team lead, technical Specialist and depending upon the work appropriate decisions are made. Document prepared during this phase are HLD, LLD.
HLD: Defines the overall Hierarchy of the function. (eg: Login into Net Banking. From the root level to the least level is defines in HLD)
LLD: Internal logic of the project is defined. Focuses on the internal functionality of the program. Each and every module logic is defined.
Entry Criteria: SRS/FCR
Exit Criteria: Design Documents TDD/TDS/TRD.

4. Coding Phase: Based on the design document, small-small modules are prepared . All the modules are summed together to form a .exe
Entry Criteria: Design documents (TDD/TDS/TRD)
Exit Criteria: Application output in the form of .exe or dll or WebSite etc..
Note: Unit testing, integration testing & white box testing comes in this phase.

5. Testing: Actual system testing take place here.

6. Implementing & Maintenance: Application running in Live environment.

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