What is a statement of work?
A statement of work, usually shortened to SoW, is the document that defines what will be delivered in a specific engagement: the scope, the deliverables, the acceptance criteria, the timeline, the assumptions and the price or pricing basis. It sits underneath a broader contract and describes one piece of work.
Most people treat it as paperwork produced after the commercial decision. In Belgium it does more than that, because it is the artefact that shows how an engagement is actually run.
What makes a statement of work useful rather than decorative?
Acceptance criteria. A scope description says what the supplier intends to do; acceptance criteria say how both sides will know it is finished. Without them, completion becomes a matter of opinion at exactly the moment when opinions diverge.
The other half is assumptions. Every estimate rests on conditions: environments available by a date, a named person reachable for decisions, data provided in a given format. Writing those down is what converts a disagreement about blame into a straightforward conversation about a changed condition. An SoW that contains deliverables and a price but no assumptions is a quote wearing a document's clothes.
Why does a statement of work matter legally in Belgium?
Because it evidences who directs the work. Under the law of 24 July 1987, an arrangement in which the client exercises part of the employer's authority over a supplier's people falls under the prohibition on lending personnel, with the conditions and exceptions set out by SPF Emploi. An engagement organised around defined deliverables, managed by the supplier and accepted against criteria, looks like what it claims to be.
An engagement where a consultant simply joins a client team and takes daily direction does not, whatever the SoW says on its cover page. That is the point worth carrying: the document does not create the protection, it records an arrangement that either exists or does not. Where the client does need to give instructions, the written clause specifying precisely which ones is the mechanism, not the SoW itself.
How does an SoW relate to a framework agreement?
The framework agreement sets the terms once. The SoW calls off one piece of work under those terms. Liability, confidentiality, intellectual property and payment conditions are negotiated in the framework and inherited by every SoW that follows, which is why a second project can start in days rather than weeks.
Confusion comes from the phrase SoW-based work, which describes a way of engaging people rather than the document. The SoW is the contract artefact. Sparagus structures its delivery and advisory engagements around deliverables where the work allows it, and says so when it does not.
