Category specific expertise is at the core of the procurement procedure. The characteristics of the category of supplies, services or works to be acquired need to be well understood, including by involving experts and stakeholders (professionals and end-users). The procurement strategy and documents have to be tailored to fulfil the identified need and maximise value for money.
Complete knowledge of the product, knowledge about the decision maker (to whom he should persuade), expertise, knowledge about the subject matter (detailed knowledge about the proposal, preferences etc), supplier selection.