A one page explanation of the differences between Waterfall, Iterative, and Agile

1. Project ManagementMethodologies
explainedusing the Magic Marker Analogy.
Thissimple explanationcanbe done usingthe toolsfoundinmostJAD rooms.
The marker tip(left) couldbe usedtoindicate Requirements,The markerend(right) couldindicate
testingandUAT.
Waterfall
 High Business Involvementat the beginning and end (Requirements & Testing)
 High Business Analystinvolvement at the beginning
 Variablestaffing within project
Iterative
Non-concurrentiterations
 High Business Involvementat the
beginningand end of each iteration.
o (Requirements & Testing)
 High Business Analystinvolvement
at the beginning.
 Variablestaffingwithin iterations/
within project.
 Same personnel could be used for
each iteration.
Concurrent iterations
 High Business Involvementat the beginning and end of each
iteration.
o (Requirements & Testing)
 High Business Analystinvolvement at the beginning.
 Variablestaffingwithin iterations/ within project.
 There is a potential for Business involvementoverlap to more
than 100%
o The example here is QA for iteration 1 whilein
Requirements for iteration 2
 Dev and other teams have overlappingwork
It is importantto note the overlaps
which may increase.
This method may cut down on time,
but will requireadditional staffing.
Agile
 High Involvement in each Sprint
o Product Owner (Business)
o Development
o BA’s
o QA
o Other
 Quick turnaround of incremental product