Stakeholders — Clearly defines and defines the responsibilities of the parties to the agreement. For the metrics obtained to be useful, it is necessary to define an appropriate baseline, with the measurements set at a reasonable and achievable level of performance. It is likely that this baseline will be redefined throughout the participation of the parties to the agreement, using the procedures defined in the « Periodic Review and Amendment » section of the ALS. As management services and cloud computing services become more frequent, ALS is developing to respond to new approaches. Common services and non-personalized resources characterize the most recent contractual methods, so service level obligations are often used to establish comprehensive agreements to cover all customers of a service provider. If both parties agree to include merits in ALS, the process should be carefully defined at the beginning of the negotiations and incorporated into the service level methodology. Business IT organizations, particularly those dedicated to IT services management, join their internal customers in ALS – users of other services within the company. An IT department creates an ALS to measure its services, justify them and possibly compare them to those of outsourcing providers. In addition, by definitions, the level of comparison service, we have α ≤ β, « alpha » display style « beta » leq » if the probability of zero need is equal to 0. Service level credits or simply service credits should be the only corrective action available to customers to compensate for service level outages. A service credit deducts an amount from the total amount payable under the contract if the service provider does not meet performance and performance standards. ALS is generally one of two basic agreements that service providers have with their clients. Many service providers enter into a master service contract to define the terms and conditions of sale in which they work with customers.
ALS is often included in the service contract of the reference service provider. Between the two service contracts, ALS adds greater specificity to the services provided and the metrics used to measure their performance. Overview of the agreement — This first part contains the basis of the agreement, including the parties involved, the launch date and the generalization of the services rendered. Among the most important elements of a service level agreement are: measures are designed to motivate good behaviour. When defining the measures, both parties should bear in mind that the objective of the measures is to motivate the corresponding behaviours on behalf of the service provider and the client. During Andrieux and. al. define the SLO as « the aspect of the quality of service of the agreement. » From a syntactic point of view, this is an affirmation of the terms of the agreement as well as qualities such as date and time. »  Keller and Ludwig define an SLO more concisely as « the obligation to maintain a certain level of performance for a certain period of time » with respect to the state of the SLA parameters.  Keller and Ludwig further point out that, although service providers are most often the leading unit in the acquisition of SLOS, there is no fixed definition as such and that each company may be responsible for an SLO. With this one, an SLO can be divided into a number of different components.
When an order cycle is considered a standard reference, α indicates the probability that there is no stock corresponding to the proportion of all order cycles without storage cycles during a command cycle (cycle α c displaystyle service level): SLAs are assumed to come from network service providers, but are now widely used in a number of information technology-related areas. Some examples of industries that create ALS are IT and managed service providers, as well as IT and Internet service providers.