[DDI-SRG] Questions on inline ncube example

[Joachim Wackerow]

Wendy,

I'm looking into how to use ncubes for the exchange of tables (structure 
approach). I made a inline ncube example for a three-dimensional table. 
Please look over it if everything is correct. I'm not sure with this.

Making this example, some questions raised:

1. 'NCubeInstanceReference' should reference the NCube description in 
the logical product. But a element 'NCubeInstance' exists in the ncube 
module. This is confusing to me. Assuming the documentation is correct, 
then the name should not express that it is a reference to a 
NCubeInstance but to a Ncube like 'NCubeReference'.

2. Repeating the container 'MeasureValue' for each cell, also the 
'MeasureReference' is repeated in this case of a regular 
three-dimensional table. Should there exist a 'DefaultMeasureReference'?

3. Ordering the MeasureValue's I assumed a hierarchy in the dimensions 
expressed by the rank, the dimension with the first rank changing the 
fastest, the dimension with the second rank changing the second fastest 
(the sequence of the vlues corresponds to the cells in the display table 
from left to right in one row, then the next row, then the next 
sub-table). Is this correct? I didn't find anything related in the 
documentation.

4. Does 'GrossRecordStructure' make sense with a inline ncube (with 
'LogicalRecordReference' and 'PhysicalRecordSegment')? It is required here.

5. How would you describe the margin sums? It can make sense for large 
tables.

6. I would like to describe the same table with percentages. I assume 
that the 'RecordLayout' must be repeated with the percentage values and 
a reference to a measure variable for percentages in logicalproduct.

7. The type of the measure is described by the label of the measure 
variable in logicalproduct or by the related 'ConceptReference'. I think 
it would make sense to describe it by a controlled vocabulary like for 
category statistics.

8. The concept of 'NCube/Attribute' is not clear to me. Can you please 
describe it.

The display tables are available at:
values
http://exanda.zuma-mannheim.de/Study_Wohlfahrtssurvey/Independent_SCHULAB/Dependent_ALTER1/Group_GESCHL/Weight_Weight/OutputType_Value/FileType_HTML/Trivariate.html
row percentages
http://exanda.zuma-mannheim.de/Study_Wohlfahrtssurvey/Independent_SCHULAB/Dependent_ALTER1/Group_GESCHL/Weight_Weight/OutputType_RowPercent/FileType_HTML/Trivariate.html

Achim

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