Requirements Specification of the Vertical Industrial Use Case ... - IKS

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48 / 196Deliverable 2.3: Requirements Specification for the Vertical Industrial Use CaseIncludes UC-230103UC-230104Scope ClusteringActor(s) IKS ServiceGoal The clustering is performed and the content is structured in clusters.Trigger A consumer starts the clustering and the corresponding IKS service is called.UC-230113: Build flat content clustersUse Case ID UC-230113: Build flat content clusters [SC1, SC2]Description The building of flat content clusters is an extension of the performing ofclustering. Flat content clusters do not reflect any kind of hierarchy among thedifferent clusters. On the other hand, they are easier to calulate and thereforeprefereable, when no hierarchy is required. The main tasks are the calculationof useful clusters and the appropriate labelling of them, corresponding to theclustered content.Parent -Extensions -Includes UC-230114UC-230117Scope Flat clusteringActor(s) IKS ServiceGoal Building of flat content clusters.Trigger The IKS clustering service is called and a flat clustering is requested.Preconditions1. ---Minimal Postconditions1. The service provides a response about the operations done.Success PostconditionsMain Flow1. The service provides the calculated flat clusters.1. Calculate the distance measure between content items to identify related content.© IKS Consortium2010
49 / 196Deliverable 2.3: Requirements Specification for the Vertical Industrial Use CaseExceptions2. Aggregate related content to clusters.3. Label content clusters (cluster-internal or differential cluster labelling)1. The clustering service is not available.2. No appropriate relations between the content items can be calculated.UC-230114: Labelling content clusters [SC1]Use Case ID UC-230114: Labelling content clusters [SC1]Description The created clusters have to be labeled with an appropriate name, to describethe kinds of content that are aggregated in this clustered. The labelling can berealized by two different approaches: “Cluster-internal labelling” and“Differential cluster labelling”.Parent ---Extensions ---Includes ---Scope Labelling of clustersActor(s) IKS ServiceGoal Labelling content clustersTrigger The consumer triggered the clustering and the IKS clustering service createdone or more content clusters.Preconditions1. ---Minimal Postconditions1. The service provides a response about the operations done.Success Postconditions1. The clusters have been labeled successfully.© IKS Consortium2010
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Requirements Specification of the Vertical Industrial Use Case ... - IKS

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