Model-based capacity planning

A method comprising:

• accessing a model of a planned system that includes a plurality of components, wherein the model is a system definition model that describes the planned system;
• identifying relationships among the plurality of components based on the model of the system;
• identifying transactions to be performed by the planned system, wherein each transaction includes at least one step;
• identifying a cost associated with each step of the identified transactions;
• simulating operation of the planned system using the model of the planned system;
• and
• modifying the planned system if simulating operation of the planned system products undesirable results.

One or more computer readable media having stored thereon a plurality of instructions that, when executed by one or more processors, causes the one or more processors to:

• identify a plurality of components in a system and relationships among the plurality of components based on information contained in a system definition model;
• identify proposed changes to the system;
• identifying at least one transaction to be performed by the changed system;
• identifying at least one cost associated with the transaction;
• and
• simulating operation of the changed system.