SLA is an abbreviation for Service Level Agreement, which means agreement service level, service quality assurance, etc. on the level of service (definitions, ranges, contents, achievement targets, etc.) tied between providers and their users It will be. This is a clarification of the extent to which the service provider can guarantee the quality to the contractor. SLAs are often used mainly in communication services, cloud services, rental servers, etc. We define guarantee items such as service definition, communication speed, upper limit of usage stop time, etc. When the quality of service falls below the guaranteed value of SLA, reduction of usage fee etc will be done. In many cases, this reduction is often limited to the usage fee, and it does not include lost profits etc. that the service could not be used properly. In principle, the prescribed items can be quantitatively measured, and the upper limit, the lower limit, the average, etc. are expressed numerically, and the measurement method etc. are also defined at the same time. As a user, it is an index to measure the availability and stability of the service, so it is a good idea to check it when selecting a service. The SLA value presented by each company varies, but you can see that there is a big difference when you fix it as “”stop time””

Video What is SLA?