UPDM — SystemServiceConsumer/ SystemServiceProvider

· It is considered questionable whether the above entities are really of interest. A service is realized by a CapabilityConfiguration in MODAF/ NAF not just a system and anything other than web services will require more than this to indicate usage as well as provision of services. Being a consumer or provider will depend very highly on the point of view taken.
· It is noted that in both of these, the text states that they are specialisations from System but the diagram shows them as extensions of class.