The Dynamic Purchasing System (DPS) is a procedure available for contracts for works, services and goods commonly available on the market. As a procurement tool, it has some aspects that are similar to an electronic framework agreement, but where new suppliers can join at any time.t is to be run as a completely electronic process, and should be set up using the restricted procedure and some other conditions (as set out in Regulation 34 of the Public Contracts Regulations 2015). Contracting authorities, including central purchasing bodies, may set up a DPS.