Methodologies include:
Lean Development (LD)
Agile Software Development
Crystal Methods
Dynamic Systems Development Model (DSDM)
Extreme Programming (XP)
Feature Driven Development (FDD)
Joint Application Development (JAD)
Rapid Application Development (RAD)
Rational Unified Process (RUP)
Scrum
Spiral
Systems Development Life Cycle (SDLC)
Waterfall (a.k.a. Traditional)