System Analysis phase the developers decide a roadmap for project plan - Process Modelling and SDLC

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• Nirja Shah   -Posted on 06 Oct 15
  System Analysis
  - This phase the developers decide a roadmap of their plan and try to bring up the best software model suitable for the project.
  - System analysis includes understanding of software product limitations, learning system related problems or changes to be done in existing systems beforehand, identifying and addressing the impact of project on organization and personnel etc.
  - The project team analyzes the scope of the project and plans the schedule and resources accordingly.
  
  Software Design
  - In this phase the whole knowledge of requirements and analysis on the desk and design the software product is brought down.
  - The inputs from users and information gathered in requirement gathering phase are the inputs of this step.
  - The output of this step comes in the form of two designs; logical design and physical design.
  - Engineers produce meta-data and data dictionaries, logical diagrams, data-flow diagrams and in some cases pseudo codes.
  
  Coding
  - This phase is also known as programming phase.
  - The implementation of software design starts in terms of writing the program code in a suitable programming language and developing error-free executable programs efficiently.
  
  Testing
  - Errors may ruin the software from critical level to its own removal.
  - Software testing is done while coding by the developers and thorough testing is conducted by testing experts at various levels of code such as module testing, program testing, product testing, in-house testing and testing the product at user’s end.
  - Early discovery of errors and their remedy is the key to reliable software.

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