Everything as a service

Everything as a service("EaaS", "XaaS", "*aaS") is a concept of being able to call up re-usable, fine-grained software components across a network. It is a subset of cloud computing. The most common and successful example is software as a service (SaaS), but the term "as a service" has been associated and used with many core components of cloud computing including communication, infrastructure, data and platforms.
A number of vendors including Google, Microsoft, Hewlett Packard and Amido have been associated with the "everything as a service" trend.
Key characteristics.
Offerings tagged with the "as a service" suffix have a number of common attributes, including:
Sub-categories.
This kind of services can be divided into more specific types: