The solicitation will include a description of its requirements, typically by using one of these documents:
Statement of work (SOW)
When the government knows exactly what it wants done and how it needs to be done, it will use a SOW. Your offer should make clear how your business will ensure all of the work will be delivered on time and exactly as expected.
Performance work statement (PWS)
When the government uses a PWS, it’s because it knows the specific outcome(s) it needs and how it will measure those outcome(s), but leaves it up to you to determine how to achieve them. In this case, your offer should provide a clear explanation of the activities you’ll perform and how they will ensure the desired outcomes are met or exceeded.
Statement of objective(s) (SOO)
When the government is open to a wide range of solutions to meet their objective(s), it will use a SOO. You will need to develop and include in your offer a proposed PWS (i.e., your solutions), performance metrics, a measurement plan, and a quality assurance plan.