Service level agreements can contain many service performance metrics with appropriate service level objectives. A common case in IT service management is a call center or services. Among the metrics in these cases, which are the subject of a common agreement in these cases, we can mention: in general, a service contract should contain: a service contract differs from a loan. A service contract binds both parties, while the link is one-sided and binds the employee only to the agreement. (a) a description of the services to be provided and their frequency; Most service contracts contain similar terms and agreements. For example, a typical construction contract may include: most of the time, service contracts contain details such as deadlines and payment agreements. Typically, contracts also define the work to be done and the process that must take place when changes need to be made. These will be legal agreements and can be challenged if necessary. .