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shared by Peter Van der Straaten on 23 Nov 12 - Cached

Unlike actors, personas are not roles which people play
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Personas are different because they describe an archetypical instance of an actor.  In a use case model we would have a Customer actor, yet with personas we would instead describe several different types of customers to help bring the idea to life.
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first introduced by Alan Cooper
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shared by Peter Van der Straaten on 27 Sep 13 - No Cached

examined the effectiveness of use cases;
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two fundamental observations
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1. Use cases, when used properly, can be an effective form of requirements. 2. From an industry perspective, use cases may have a negative impact on overall productivity.
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...7 more annotations...
bureaucrats often want you to make your use cases more complex and wordy than they need to be
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many organizations are struggling with use cases
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use cases have had a negative impact on our overall productivity across the IT industry
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Use-case modeling specialists
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use cases are a critical part of anything you do, whether it's appropriate or not
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They're very good for exploring usage requirements, but not so good for exploring user-interface or data requirements, business rules, or constraints
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too many people arguing about formatting issues, content issues, traceability issues
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