It is not uncommon for an internet service provider (or network service provider) to explicitly state its own ALS on its website.   The U.S. Telecommunications Act of 1996 does not specifically require companies to have ALS, but it does provide a framework for companies to do so in Sections 251 and 252.  Section 252 (c) (1) („Duty to Negotiate“) obliges z.B. established local exchange operators (CIDs) to negotiate in good faith matters such as the sale of dentes` and access to whistleblowing channels. Service level agreements are also defined at different levels: Spesso e il provider, trap che it customer, a mettere sul tavolo la definizione di un Service Level Agreement. Di solito i provider hanno vari tipi di SLA generici predefiniti che propongono ai clienti e che vanno per considerati solo un punto di partenza. L`azienda client deve esaminarli attentamente per capire come adattarli alle proprie esigenze e deve sottoporli anche al proprio dipartimento consul oente legale. In questo modo si pué arrivare a un documento che sia in linea con i requisiti dell`azienda e non solo una proposta generica, per quanto corretta formalmente. SLAs often include many elements, from the definition of services to the termination of the contract.  In order to ensure rigorous compliance with ALS, these agreements are often designed with specific lines of demarcation and the parties concerned must meet regularly to create an open communication forum. Rewards and penalties that apply to the supplier are often set. Most ALS also leave room for regular (annual) revisions to make changes. Many SLAs follow the specifications of the COMPUTER infrastructure library when applied to IT services. Una generality per a processo di definizione e monitoraggio degli SLA si articola secondo le seguenti fasi: FP7 IRMOS also examined aspects of translation of SLA terms at the application level into resource-based attributes to bridge the gap between customer expectations and the cloud provider`s 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).  In a mercato competitivo che opera quindi in regime di libera concorrenza gli accordi sui livelli di servizio sono diventati uno strumento comune per misurare effectively i servizi. In questo contesto la definizione di uno SLA consists in a contratto tangibile tra due parti che, se da un lato assicura la fornitura dei servizi a livelli pre-negoziati, dall`altro comporta il pagamento di penalité in caso di mancato raggiungimento di talielli. 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. Since the late 1980s, SLAs have been used by fixed-line operators.
Today, ALS is so widespread that large organizations have many different ALSs within the company itself. Two different units in an organization script an ALS, one unit being the customer and another the service provider.