Measure Group --- System Centre Cube

Each OLAP cube contains a collection of facts that exist in the data mart, where each member in the collection corresponds to a measure group. Each measure group must have its own unique name within the OLAP cube. However, a single fact may correspond to multiple measure groups in an OLAP cube. For example, the abstract relationshipWorkItemAssignedToUser may be defined three times in an OLAP cube, with the unique measure group names 

of ChangeRequestAssignedToUser, IncidentAssignedToUser, and ProblemAssignedToUser. As described in the in the Substitution section, you can customize the fact so that only change requests, incidents, and problems are included in the respective measure group for the OLAP cube.

The following example shows the management pack element for the IncidentAssignedToUser measure group:

<MeasureGroup DateDimAlias="IncidentAssignedToUserDateDim" MeasureGroupName-"IncidentAssignedTouser" Fact="DWBase!WorkItemAssignedToUserFact"/>

When the OLAP cube is deployed, the dimension, outriggers, and foreign key relationships are automatically calculated and the data source view will be updated with these new elements. The following table describes measure group attributes.

Attribute	Required	Values	Definition
DateDimAlias	No	String	The name of the date dimension that will filter on this measure group. If no alias is defined, the date dim role playing name will automatically be "(MeasureGroupName)_DateDim"
MeasureGroupName	Yes	String	The name of the measure group in the cube. This name must be unique within the cube.
Fact	Yes	Relationship or CustomFact	The target of the measure group, which must be a fact in the data warehouse.