Points to consider
The routes and media through which information will flow during the arrangement (information flows) should be defined and ideally tested before the contract commences.
There are three levels of communication in a contractual arrangement: strategic (senior management/board of directors), business (contract managers on both sides) and operational (technical and 'frontline' staff).
Communication between provider and client should be peer-to-peer; that is, operational problems are resolved by staff at the operational level, not discussed with business managers.