Approaches to project management

Depending upon the project and organization, methodologies may be adapted to fit a waterfall, iterative, incremental, agile, or hybrid delivery approach.

illustration of delivery for agile, iterative, incremental, waterfall

The diagram above is from course notes by Aguanno, Kevin,'Agile Bootcamp for Project Owners & Business Stakeholders', 14 February 2012, (C)GenXus Management Consulting.  A,B, and C represent features and shading marks when work is complete. Big Bang methods like Waterfall and Iterative show all features being worked on simultaneously with full shading at the end of the project. Phased methodologies like Incremental and Agile have features broken down with work starting and finishing multiple times over the course of the project.