A web service level agreement (WSLA) is a standard for monitoring compliance with web services according to the service level agreement. It allows authors to indicate performance metrics assigned to a web application, desired performance goals, and actions to perform if performance is not achieved. The service received by the customer as a result of the service provided is at the heart of the service level agreement. Measures should be designed so that bad conduct is not rewarded by both parties. If z.B. a service level is violated because the customer does not provide information on time, the provider should not be penalized. FP7 IRMOS also examined aspects of translation of ALS terms at the application level into resource-based attributes to bridge the gap between customer expectations and cloud provider resource management mechanisms.   The European Commission has presented a summary of the results of various ALS research projects (from specifications to monitoring, management and implementation).  Service availability: The time available to use the service.
This can be measured using the time window, z.B 99.5% availability between hours 8 a.m. and 6 p.m. and more or less availability at other times. E-commerce processes are generally extremely aggressive. 99.999 percent operating time is an unusual requirement for a website that generates millions of dollars per hour. Typically, these processes and methods are left to the outsourcing company to determine that these processes and methods can support the ALS agreement. However, it is recommended that the client and the outsourcing company work together during the SLA contract negotiations to clear up misunderstandings about the support process and method, as well as management and reporting methods. A Service Level Contract (SLA) is an obligation between a service provider and a customer. Specific aspects of the service – quality, availability, responsibilities – are agreed between the service provider and the service user.
 The most common component of ALS is that services are provided to the client in accordance with the contract. For example, internet service providers and telecommunications companies will generally include service level agreements under the terms of their contracts with customers to define service levels of service level sold in plain language. In this case, ALS generally has a medium-time technical definition between errors (MTBF), average repair time or average recovery time (MTTR); Identifying the party responsible for reporting errors or paying royalties; Responsibility for different data rates throughput; Jitter; or similar measurable details. Most service providers provide statistics, often through an online portal. There, customers can check whether ALS is being met and whether they are entitled to service credits or other penalties under ALS. Management elements should include definitions of standards and methods of measurement, reporting processes, content and frequency, a dispute resolution procedure, a compensation clause to protect the client from third-party disputes arising from breaches of service (which should already be included in the contract) and a mechanism to update the agreement if necessary.