The Information Technology Industry loves to use acronyms. a.a.S stands for As A Service; it means a group of people gathered resources like hardware, software, labor, and managers to sell the service as one product. A good example is Disaster Recovery as a Service. It is improbable to need disaster recovery but necessary to have all the resources ready in the event everything grinds to a halt. A Service Company is prepared for the event they are needed. Its much like renting tools from the hardware store as you need them.