What is the difference between a Statement of Objectives (SOO) and a Performance Work Statement (PWS)?

A Performance Work Statement (PWS) describes the work in terms of required results, not how the work is to be performed, whereas a Statement of Objectives (SOO) provides the basic top-level objectives of the acquisition, allowing the contractor to propose the how, what, and where. The main difference for your technical volume strategy is the level of detail the government provides and, consequently, the level of detail you need to provide in your proposal. With a PWS, the government has already defined the outcomes and often outlines key performance indicators, so your technical volume will focus on demonstrating your ability to meet those specific requirements efficiently and effectively. For a SOO, your firm has more latitude to innovate and propose unique solutions to meet the stated objectives, requiring a more comprehensive and creative approach in your technical volume to articulate your proposed methodology and approach.