The ResourceFacingServiceSpec represents the technical solutions that the Service Provider can implement for CustomerFacingServiceSpec.<br/><br/>Each technical solution (ResourceFacingServiceSpec) requires ResourceSpecifications to be realized and might require buying part of the solution to a supplier (for example the Service Provider might have to buy the Local Loop to provide a broadband access).<br/><br/><br/><br/>This is the base entity for defining different types of ResourceFacingServiceSpecs. A ResourceFacingServiceSpec is an abstraction that defines the shared characteristics of a particular ResourceFacingService. The shared portion serves as a single common basis to build a set of variable ResourceFacingServices that all use this common ResourceFacingServiceSpec.<br/><br/><br/><br/>This class can be thought of as a template, which represents a generic specification for implementing a particular type of Service. A ServiceSpecification may consist of other ServiceSpecifications supplied together as a collection.  Members of the collection may be offered individually or collectively. ServiceSpecifications may also exist within groupings, such as within a Product. ServiceSpecification inherits from EntitySpecification, which inherits from RootEntity.<br/>