Sizing SRM-Catalog

Hi Experts.....

I have to
do a sizing study for SAP SRM-MDM Catalog 3.00 SPS07 and I’ve found two sizing
guides

• Sizing
  SRM-MDM Catalog 3.0 (version 1.0, December 2009)
• Sizing
  Guide – SAP NetWeaver Master Data Management 7.1 (version 2.1, April 2013)

since
Catalog 3.0 is based on MDM 7.1, which of these two guides should I use?

I’ve done
an analysis using both guides and the results were very different.

Thanks