- A call off or a term contract is one which exists for a fixed period of time, rather than for a specific purpose

- A formal framework agreement does have some legal standing but it is not a contract, primarily because there is no consideration involved, but it is an overarching (or umbrella) agreementunder which contracts can be created (this holds true in English law but may not be right in other jurisdiction)

- A framework arrangement is a rather loose set-up, without any legal standing. It usually occurs when an organisation has decided for itself to limit the number of suppliers it is willing to work with and, through a purely internal process, sets up an approved list of such suppliers.

- A performance management framework including KPIs and targets, the assessment scheme and incentives, disincentives, bonuses and penalties. It is a schedule to a contract and only legally binding if it is referred from contract clauses.