Enrichment of UML by introjection of functional model

Abstract

The de facto status of unified modeling language (UML) remains unaltered even after 20 years of advances in other technologies. The non-ascension in the status indicates some lacuna in UML, though it has undergone up-gradation in subsequent versions. Initially, UML is developed by three amigos to widen the scope and enhance the richness of diagramming languages. The clairvoyant study based on the number of involved diagrams indicates that, instead of unifying the semiotics of all three amigos diagramming languages, the diagrams of three languages are unified, discarding some of the diagrams with apprehension of descension in UML richness. The functional model which is quintessence of any open system has been discarded costing utilities of UML. This paper formulates the richness through logical positivism, unifies the semiotics of participating diagramming languages, and enhances through the reintroduction of modified functional model in the form of work process flow diagram.