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© 2008-2016 Sam Supakkul

KAOS

The RE-Tools supports a subset of the concepts defined in this book and the seminal paper on KAOS, with the following extensions:

• Different icons for "requirement" and "expectation" goals
• Different icons for people, hardware, target software (software under development), and external software, as suggested by Lawrence Chung
• Ability to link NFR softgoal to KAOS model elements

The following are examples of KAOS goal and obstacle models.

KAOS Goal Model

KAOS Obstacle Model