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Case Base MiningMart	Case ModelCaseTelecom	Chain HandleCallsData

Step: MaterializeData

Name	MaterializeData
Belongs to Case	ModelCaseTelecom
Uses Operator	Materialize
Belongs to Chain	HandleCallsData
Concepts of resulting Data Model	InputCustomers InputRevenues CalldetailsIntermediate
Has Parameters	TableName TheInputConcept TheOutputConcept

M4 Documentation:

The data set produced so far in this chain will be used as input for several steps, so it makes sense to materialise the data set in the database to speed up further processing.