Service Applications in SharePoint are associated with web applications, and specific services are typically deployed as needed in a particular farm. Only deployed services are referred to as service applications. This is a huge advantage in terms of conserving resources and optimizing performance. For instance, a specific web application can be configured to use only the services it needs. The number of service applications that exist is vast, and, as third-party vendors can create their own services for SharePoint Server. A list of services includes the following: