Development Model : Agile Software
Development
What is Agile Software Development?
Agile software development is a methodology based on incremental development, where requirements and solutions evolve through collaboration between self-organizing, cross-functional teams.Agile Manifesto
The Agile Manifesto emphasizes that:1) Individuals and interactions over processes and tools.
2) Working software over comprehensive documentation.
3) Customer collaboration over contract negotiation.
4) Responding to change over following a plan.
That means we value the items on the left more than right.
Supplementing the Manifesto, the Twelve Principles explain what it is to be Agile.
1) Our highest priority is to satisfy the customer through early and continuous delivery of
valuable software. This thing has been done by incremental development. Development has
to split the big feature to many small working features and they will be released
continuously.
2) Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage. As we have released small working feature, we can get the feedback from customer quicker. Then, the changing can come to development easily.
3) Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.
4) Business people and developers must work together daily throughout the project. As we have short timescale, the quick answer from business and developers are required for both party.
5) Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done.
6) The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.
7) Working software is the primary measure of progress. If development cannot release the working software, the small release to customer is unacceptable.
8) Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
9) Continuous attention to technical excellence and good design enhances agility.
10) Simplicity is essential.
11) The best architectures, requirements, and designs emerge from self-organizing teams.
12) At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly. One activity is the retrospective meeting which is
2) Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage. As we have released small working feature, we can get the feedback from customer quicker. Then, the changing can come to development easily.
3) Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.
4) Business people and developers must work together daily throughout the project. As we have short timescale, the quick answer from business and developers are required for both party.
5) Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done.
6) The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.
7) Working software is the primary measure of progress. If development cannot release the working software, the small release to customer is unacceptable.
8) Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
9) Continuous attention to technical excellence and good design enhances agility.
10) Simplicity is essential.
11) The best architectures, requirements, and designs emerge from self-organizing teams.
12) At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly. One activity is the retrospective meeting which is
used for continuous improvement in how the team improve the process.
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