In simple terms it means developing a software program. In somewhat technical terms it is “Software development is the process of computer programming, documenting, testing, and bug fixing involved in creating and maintaining applications and frameworks resulting in a software product.”

At CodeEpsilon we follow various traditional methodologies like Waterfall, Prototyping, Iterative, Spiral, RAD. We are also well versed with more flexible and agile methodologies like Scrum, Agile. Based on the requirement and needs proper development model is selected and implemented.

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In crux Software Development includes all the stages and processes starting from the ideation till the final rollout. That is all the stages from the stage when it is conceptualized through the stage of requirement gathering through design and development passing the testing cycles and reaching to the target audiences. Everything that comes in between is part of Software Development.

Selection of the right methodology can increase the success rate of the Software Project multiple fold. There are a wide range of methodologies available which have evolved over the years based on the needs of the time. Categorially the methodologies can be divided in main broad categories:

Waterfall Model

  • Linear downward sequential flow.
  • Next phase begins after previous one ends.
  • Requirement and deliverable verified after each phase.
  • Easiest and one of the oldest execution models.
  • Appropriate when the project scope is frozen.

V-Shaped Model

  • Next level of Waterfall model.
  • Contains upward flow also after the downward flow.
  • Appropriate when the project scope is frozen.
  • Earlier development of test plans possible.

Prototyping Model

  • Prototype is non-working software.
  • Gives a visual appearance to the final product.
  • Streamlines understanding, removes gaps & reduces iterations.
  • Reduces costs and time.
  • Types: Throwaway, Evolutionary, Incremental, Extreme prototyping.

Spiral Method (SDM)

  • Blends both design and prototyping-in-stages.
  • Combination of prototyping and waterfall model.
  • Suitable for large, expensive and complex projects.
  • Produces realistic estimates.

Each project has specific characteristics that should be taken into consideration when choosing the methodology that will be used for software development. There are many factors that effect this decision like:

  • Clarity of requirements
  • Accuracy of initial estimation
  • Possibility of changes in requirements during development
  • Criticality of software
  • Delivery timeline and time to market

Iterative and Incremental Method

  • Overcomes weaknesses of waterfall model.
  • Software development via iterative cycles.
  • Suited for systems with individual modules integrated together.
  • Better resource utilization, produces business value sooner, flexible in absorbing changes.

Rapid Application Development (RAD)

  • System planning and systems analysis phase's elements are combined.
  • Models and prototypes are developed.
  • Changes and enhancements can come up during Development Phase also.
  • Results in better quality and more control on risks.

Rational Unified Process (RUP)

  • Develop iteratively, with risk as the primary iteration driver.
  • Manage requirements.
  • Employ a component-based architecture.
  • Model software visually.
  • Continuously verify quality.
  • Control changes.

Extreme programming (XP)

  • Iterative and Incremental.
  • Continuous Evolutions.
  • Cross functional teams.
  • Customer remains involved and informed.
  • Small quick and quantifiable deliverables.
  • Improved quality.

Choosing the right methodologies out of the complete bunch is indeed a task in itself. CES-SEPG is the set of team who are experts in selecting the best model suited for your requirements. These models are the guidelines and based on the requirements coupled with other important success factors, the right methodology is recommended or designed. Custom designed execution methods are also a role that CES-SEPG team does to make sure that you are given the leverage of the experience that this group has gained over the years.

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