Hi Cognosuser,
I don't know if this is a solution for you but this is how I managed to plot IBM Cognos X/Y data on a map in Esrimaps 5.0
Our setup:
* Esrimaps 5.0
* DWH containing addresses with an address-id and X, Y info.
* ArcGIS Online
As far as I could see, the X/Y datapoint layer that was available in Esrimaps 4.x is not there anymore. I'm therefore assuming that you have to have a maplayer containing all your addresses. Through that maplayer you'll then be able to join your IBM Cognos location (X/Y) data.
My steps:
1) I made a CSV export of the addresses from IBM Cognos (about 120.000) containing a address-id, X and Y column.
2) I imported the CSV into ArcMap and I created a X/Y layer from the imported table
3) I exported the layer (with all 240.000 addresses) to a shapefile
4) I zipped the shapefiles into a zip file, uploaded it to ArcGIS Online and called the layer "Addresses-XY"
After these steps you can add IBM Cognos data in Esrimaps mapstudio. When asked for the maplayer, search for the created "Addresses-XY" layer. Add the layer as a location. After that you can join your Cognos addressquery using the address-id.
Hope this helps!
Greets,