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Patterns For Effective Use Cases
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Patterns for effective Use Cases October, 29 th 2009 Maria Lekkou
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An overview of the Patterns that may be applied when working with Use Cases in the Requirements Definition Process (software development)
Transcript of Patterns For Effective Use Cases
Patterns for effective Use Cases
October, 29th 2009
Maria Lekkou
© MAYFLOWER GmbH 2009
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Patterns for Effective Use Cases
whoami
❙ Dipl.-Ing. Elektrotechnik / Techn. Universität Athen❙ Broadband Netzwerke für Multimedia
❙ Seit 8J. Software development❙Mayflower
❙ Dipl.-Ing. Elektrotechnik / Techn. Universität Athen❙ Broadband Netzwerke für Multimedia❙ Dipl.-Ing. Elektrotechnik / Techn. Universität Athen❙ Broadband Netzwerke für Multimedia❙ Seit 14 J. in DE
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Patterns for Effective Use Cases
Alistair Cockburn
Who is...
Use Case Patterns heute bei Mayflower!
Nix wie hin!
Steve Adolph
Bin schonunterwegs!
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Patterns for Effective Use Cases
Why talk about Use Cases?
? TEXT!
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Patterns for Effective Use Cases
Why do we need Use Cases?
requirements
validate design
tests/QA
help, manuals
feature lists
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Patterns for Effective Use Cases
What is a Use Case (not)?
contract
system (SuD)
behaviourinteraction
scenario
goal
stakeholder
primary actor
scopelevel
UI design
Implementationdetail
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Patterns for Effective Use Cases
Horror Use Case
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Patterns for Effective Use Cases
Good Use Case – part I
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Patterns for Effective Use Cases
Good Use Case - part II
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Patterns for Effective Use Cases
Scope / Goal
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Patterns for Effective Use Cases
Summary – level example
❙ Main Success Scenario1. A reporting party registers a loss to insurance company2. Clerks receives and assigns the claim to a claims adjuster3. The assigned Claims Adjuster
conducts an investigationevaluates damagessets reservesnegotiates the claimresolves the claim and closes it
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Patterns for Effective Use Cases
Actor-Goal list
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Patterns for Effective Use Cases
Use Case Patterns
Pattern NamePictureContextProblem
StoryForces
SolutionExamples
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Patterns for Effective Use Cases
DEV-> Team
SmallWritingTeam
BalancedTeam
ParticipatingAudience
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Patterns for Effective Use Cases
DEV-> Process
BreadthBeforeDepth
MultipleForms
TwoTierReview
QuittingTime
WritersLicense
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Patterns for Effective Use Cases
DEV-> Editing
MergeDroplets
CleanHouse
RedistributeTheWealth
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Patterns for Effective Use Cases
STRUCT-> Use Case Sets
VisibleBoundary
SharedClearVision
ClearCastOfCharacters
UserValuedTransactionsEverUnfoldingStory
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Patterns for Effective Use Cases
STRUCT-> Use Cases
ScenarioPlusFragments
ExhaustiveAlternatives
VerbPhraseName
CompleteSingleGoal
PreciseAndReadable
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Patterns for Effective Use Cases
STRUCT-> Scenarios / Steps
TechnologyNeutral
ForwardProcess
ActorIntentAccomplished
LeveredSteps
DetectableConditions
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Patterns for Effective Use Cases
Example 1
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Patterns for Effective Use Cases
Example 2
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Patterns for Effective Use Cases
Example 3
Happy End ;)Maria LekkouMayflower GmbH
Mannhardtstr. 6 80538 München+49 (89) 24 20 54 - [email protected]
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