A methodology is generally a guideline system for solving a problem, with specific components such as phases, tasks, methods, techniques and tools.
Software development methodologies include:
Agile Methodology is an incremental, repetitious means of managing projects; particularly in the field of software development. These iterations, or sprints, give project managers many opportunities to evaluate and change the project during its lifecycle as well as keeping the end user informed and involved in development.
The Agile Manifesto reads:
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
While there is value in the items on the right, we value the items on the left more.