mBrace provides a simple and cost effective solution for doing initial sizings for SAP implementations with the following approach:
Step 1: Set up a configuration with the absolute minimum of server instances
Step 2: Install the mBrace Agile Performance Test Tool
Step 3: Create one or more use cases with all freqently used transactions
Step 4: Determine how many users are going to aply these uses cases (the Load model)
Step 5: Do a performance test with the mBrace Agile Tooling on the use cases (Example: Video #1)
Step 6: Do a Capacity Optimization Scenario with the Tool (See Video #4 for an example)
After Step 6 you have accurate insight in the capacities you need to have your SAP Implementation run smoothly.