Cloud computing is a fundamental advantage: shared resources, supported by the underlying nature of a common infrastructure environment. SLAs therefore extend to the cloud and are offered by service providers as a service-based contract and not as a customer-based agreement. Measuring, monitoring and covering cloud performance is based on the final UX or its ability to consume resources. The disadvantage of cloud computing compared to ALS is the difficulty of determining the cause of service outages due to the complex nature of the environment. Cloud providers are more reluctant to modify their standard SLAs because their margins are based on providing goods services to many buyers. However, in some cases, customers are able to negotiate terms with their cloud providers. The main point is to create a new level for the grid, cloud or SOA middleware, capable of creating a trading mechanism between service providers and consumers. For example, the EU-funded Framework SLA@SOI 7 research projectexplores aspects of multi-level, multi-supplier slas within service-based infrastructure and cloud computing, while another EU-funded project, VISION Cloud, has delivered results in terms of content-based ALS. This ALS is a contract that includes the same type of service for all customers. Because the service is limited to an immutable standard, it is simpler and more convenient for suppliers. For example, using a service contract on an IT support service would mean that the same service applies to all end-users who sign service-based ALS. There are three types of service level agreements that can be documented.
Before defining ITIL service level requirements and agreeing service levels via ALS, the most appropriate SLA structure must be designed. Depending on the services available to a customer or business, an SLA structure corresponding to the objective is designed. Service level agreements are usually signed during the ITIL service design phase of ITIL`s lifecycle. A Service Level Contract (SLA) is a contract between a company and its customer that describes the details agreed upon by both parties in a transaction. The types of ALS an organization can use depend on many important aspects. While some are geared towards groups of individual customers, others discuss issues of interest to entire companies. This is because the needs of one user differ from those of another. Below is a list of the types of SLAs used today by companies and how each of them is used for certain situations: a compensation clause is an important provision by which the service provider agrees to exempt the client company from any violation of its guarantees.