Who is ultimately responsible for the work detailed in the SoW?

The ultimate responsibility for the work detailed in the Statement of Work (SoW) lies with the contractor. The contractor is the entity that agrees to execute the project as outlined in the SoW, which serves as a contract that establishes the scope, deliverables, and requirements of the work. This means that the contractor must ensure that the project is completed according to the specifications documented in the SoW, including meeting deadlines, quality standards, and any other obligations stipulated within the agreement.

While the contractor’s project manager and the client representative play critical roles in overseeing the project and ensuring effective communication and execution, the ultimate accountability resides with the contractor as the party committed to delivering the results. The project sponsor may provide funding and support for the project but does not have direct responsibility for executing the work. Therefore, the contractor's obligation to fulfill the terms of the SoW makes them the correct choice for this question.