Service provisioning is basically the means by which IT services are provided to support business processes. This book is about application service providers, or ASPs. However, there has recently been a boom in service provisioning that has led to a plethora of potentially confusing acronyms ending in "SP." To understand them and to sift through the literature intelligently, one needs a basic familiarity with business technology. Figure 11 provides a convenient point of reference.
As shown in Figure 11, corporate IT can be viewed as a series of layers or infrastructures that work together to provide service to business processes. The foundation layer of this model is the storage infrastructure. (Note that the position of any layer in this model does not connote its importance relative to the other layers. All layers working together efficiently determine the efficiency of IT service generally.)
Figure 11 An intrastructural perspective of IT service.