Agile Principles

Agile methods are a family of development processes, not a single approach to software development. The Agile Manifesto states: 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.

Some of the principles behind the Agile Manifesto are:

• Customer satisfaction by rapid, continuous delivery of useful software
• Working software is delivered frequently (days or weeks rather than months)
• Working software is the principal measure of progress
• Even late changes in requirements are welcomed
• Close, daily cooperation between business people and developers
• Daily conversation is the best form of communication (co-location)
• Projects are built around motivated individuals, who should be trusted
• Continuous attention to technical excellence and good design
• Simplicity
• Self-organizing teams
• Regular adaptation to changing circumstances

Source: Wikipidia