We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value:
- Individuals and interactions over processes and tools
- Working software over comprehensive documentation
- Customer collaboration over contract negotiation
- Responding to change over following a plan
That is, while there is value in the items on the right, we value the items on the left more.
We follow these principles:
-
Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.
-
Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage.
-
Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.
-
Business people and developers must work together daily throughout the project.
-
Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done.
-
The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.
-
Working software is the primary measure of progress.
-
Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
-
Continuous attention to technical excellence and good design enhances agility.
-
Simplicity--the art of maximizing the amount of work not done--is essential.
-
The best architectures, requirements, and designs emerge from self-organizing teams.
-
At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly.