I am looking to create a dashboard where the user selects the Version/Month for the first column and then selects the comparison Version/Month for the second column (using a selection module). The dashboard would then show the selected version/months in the first 2 columns and then show the variance in the third column.
I do have to worry about user concurrency issues so there no 2 users clash.
There is a source module with results dimensioned by version/month.
I am thinking of creating the output module using a formula with SELECT/LOOKUP function to bring the appropriate figures from the source module into the first 2 columns.
However, because I need to ensure that multiple users are able to manipulate the report at same time, I would have to add the Users dimension to the output module & this would blow up the model size & I need a different way of doing this.
Any there any alternative solutions to this issue?
I was thinking of filtering in the source module (based on the selection module), but then how would the variance be calculated in the output module.