Difference Between Agile and Waterfall

ManagementBusinessSoftware & Coding

In this post, we will understand the difference between agile and waterfall models −

Agile Model

  • It separates the project development lifecycle into multiple sprints.

  • It uses an incremental approach

  • It is flexible.

  • It can be understood as a collection of multiple different projects.

  • Changes can be made in project development requirements after initial planning has been completed.

  • It follows an iterative development approach.

  • The process of planning, development, prototyping and software development phases can appear multiple times.

  • The test plan is reviewed after every sprint.

  • The requirements may change and evolve.

  • The process of testing is performed concurrently with software development.

  • It uses a product mindset where software product would satisfy the requirements of end customers.

  • It can be changed based on the demands of the customers.

  • It works well with time and materials, i.e non-fixed funding.

  • It would increase the amount of stress in fixed-price scenarios.

  • It is preferred to work with small and dedicated teams with high amounts of coordination and synchronization.

  • Products owner with team prepares requirements just about every day during a project.

  • The test team can be a part of the requirements change.

  • The description of the project can be altered anytime during the development process.

  • The team members can be interchanged, hence work fast.

  • Project managers are not needed since project can be managed by the entire team.

Following is the representation of Agile Model −

Waterfall Model

  • The process of software development is divided into distinct phases.

  • It is a sequential design process.

  • It is a structured process, and may be quite rigid at times.

  • The software can be developed as one single project.

  • The requirements can’t be changed once the project development starts.

  • The project development phases such as designing, development, testing, are done only once in the waterfall model.

  • The test plan is not usually discussed during the test phase.

  • This method can be used for projects that have a definite set of requirements and doesn’t changes.

  • The ‘testing’ phase comes after the ‘build’ phase.

  • It shows a project mindset, and focuses on completing the project.

  • The risk is reduced since the price of contracts are fixed by getting the risk agreement in the beginning.

  • There is limited team coordination and synchronization.

  • Business analysis is done to prepare the requirement before beginning it.

  • It is difficult to initiate any changes in the requirements.

  • The process is generally straightforward hence project manager is required.

  • A project manager plays an important role in every stage of the development process

Following is the representation of Waterfall Model −

Published on 27-Apr-2021 06:48:36