A Web Service Level Agreement (WSLA) is a standard for monitoring compliance with Service Level Agreements for Web services. Authors can specify the performance assigned to a web service application, the desired performance goals, and the actions to take if performance is not achieved. The underlying advantage of cloud computing is that of shared resources that are supported by the underlying nature of a common infrastructure environment. Therefore, SLAs span the entire cloud and are offered by service providers as a service agreement and not a customer-based agreement. Measuring, monitoring, and reporting on cloud performance is based on the final UX or its ability to consume resources. The disadvantage of cloud computing compared to SLAs is the difficulty of determining the cause of service interruptions due to the complexity of the nature of the environment. Jamaica and the International Monetary Fund (IMF) have reached an agreement at the personnel level. A service level agreement is an agreement between two or more parties, one of which is the customer and the other service providers. It can be a legally binding formal or informal ”treaty” (e.g. B internal departmental relations).

The agreement can include separate organizations or different teams within an organization. Contracts between the service provider and other third parties are often referred to as SLAs (wrongly) – since the performance level is set by the (principal) customer, there can be no ”agreement” between third parties; These agreements are simply ”contracts”. Vereinbarungen auf betriebsebene oder OLAs können jedoch von internen Gruppen zur Unterstützung von SLAs verwendet werden. Wenn ein Aspekt einer Dienstleistung nicht mit dem Kunden vereinbart wurde, handelt es sich nicht um ein ”SLA”. Typically, the term SLA is used in connection with IT and telecommunications services. Such an agreement may contain a detailed description of the service provided, including a list of quality parameters, methods and means of their control, the supplier`s response time to a consumer request, as well as penalties for breach of this contract. In order to comply with the SLA, the service provider in turn enters into an Operational Service Level Agreement (OLA) with other internal units on which the quality of service delivery depends. The main point is to create a new layer on the network, cloud or SOA middleware, capable of creating a negotiation mechanism between service providers and consumers.

For example, the EU-funded Framework 7 research project SLA@SOI[12], which investigates aspects of multi-level, multi-vendor slas in service-oriented infrastructure and cloud computing, while another EU-funded project, VISION Cloud,[13] has delivered results with regard to content-oriented ESAs. . . .