Service-Now is a cloud-based application; that's why your client is not required to set up any infrastructure to support Service-Now in their environment. By reading the Understanding Service-Now procurement recipe, you should know that Service-Now provides three environments (one production and two non-production). As a setup, these environments are called instances and may be classified as development, testing, and production. Consider the following examples of Service-Now instances or web addresses:
If the customer is Amazon and has requested more than three instances from Service-Now, then the web addresses may look similar to the following: ...