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  • I like this answer also, this is nice but how to say this is the best answer or another answer, from the start of the agile course the instructors always say "I think", "this is valid but I don't like it", "yes this can be in our category".....etc they are too flexible I can't make a solid background, I'm a c++ developer between many software engineers and project managers, in agile how to say this is true and this false? Commented Dec 3, 2013 at 19:36
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    @Ahmedsafan It is ironic that the instructors are so flexible because the main goal of Agile is to be flexible. Remember the Agile Manifesto, Individuals and Interactions over Processes and Tools. There are no defined rules and no true and false. Instead interact with your instructors, customers and users and find out what makes the most sense for your situation. Commented Dec 3, 2013 at 21:59
  • Well the Highway Patrol or equivalent is a Stakeholder (and hopefully not an Actor) in the car scenario. You have a (non functional) requirement to "Comply with all local traffic regulations". Commented Dec 4, 2013 at 1:25
  • @JamesAnderson Complying with all local traffic regulations should be expected by the stakeholder which is why I don't like that as a non-functional requirement. Instead if cars were on a special race track void of local traffic laws then I would specify the exceptional rules as a non-functional requirement. This is just my preference. By defining a given thing as a non-functional requirement you teach developers learned helplessness. In the future when they do not see best practices lined up as individual requirements then they won't perform that necessary work. Commented Dec 4, 2013 at 13:28