What does this mean? is there another way of explaining it?

Identify the specific performance obligation -the promise to provide a distinct good or service.Distinct = capable of valuation on a stand-alone basis AND separately identifiable or distinct within the context of the contract. Significant integration/customization/highly interdependent nature of several goods/services should be considered a single performance obligation. (e.g. building a house). Software license, installation and technical support for your regular customer = 3 distinct performance obligations.