An SLA (service-level agreement) is a contract that you make with your customers. It clearly defines the expectations and responsibilities for each party.
The SLA is often part of the service provider’s master service agreement. Between the two existing contracts, the SLA defines specifics in regards to metrics and related services.
This guide will answer the question, “What are SLAs and how to use them?”. It will also provide information about why you need them for project management.