Agile - It's less of a methodology as it is a set of values and principles. Agile is a foundation for making decisions as it encourages communication and review in a team.
Value left more than right:
Individuals and interactions > Processes and tools
Working software > Comprehensive documentation
Customer collaboration > Contract negotiation
Responding to change > Following a plan
The 12 principles of Agile
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.
Scrum - Scrum is a lightweight set of values, principles and practices.
Scrum relies on cross-functional teams to deliver products and services in short cycles, enabling:
Fast feedback
Continuous improvement
Rapid adaptation to change
Accelerated delivery
Scrum works by breaking large products and services into small pieces that can be completed (and potentially released) by a cross-functional