UML is becoming increasingly important in modern software development. Many articles describe UML features, but only very few of them discuss its usability in real projects. This article discusses features and usability of UML in software projects based on experiments and pilot projects. In the analysis some differences between UML and SDL (Specification and Description Language) are emphasized...

UML (Unified Modeling Language [1]) is a standard notation based on a set of diagrams to describe the structure and the behavior of software systems. In [2] the authors claim that “UML is more than just a graphical language. Rather, behind every part of its graphical notation there is a specification that provides a textual statement of the syntax and semantics of that building block”. However,...

In this paper we describe a possible semantics for a large part of the Uniied Modelling Notation (UML), using structured theories in a simple temporal logic. This semantic representation is suitable for modular reasoning about UML models. We show how it can be used to clarify certain ambiguous cases of UML semantics, and how to justify enhancement or reenement transformations on UML models.

In software construction, analysis investigates system requirements and design captures system functionality. To facilitate analysis and design, one popular technique is the unified modeling language, UML. In UML, there are use-case diagrams for the interaction of users with system components, class diagrams for the static classes and relations among them, and sequence diagrams for the dynamic ...

This paper describes a solution to the Movie Database case using UML-RSDS. The solution specification is declarative and logically clear, whilst the implementation (in Java) is of practical efficiency. 1 Solution definition as a UML-RSDS specification UML-RSDS [1] is a hybrid MT language which uses UML notations to specify transformations: source and target metamodels of a transformation are de...

The Unified Modeling Language, UML, is the objectoriented notation adopted as the standard for objectoriented Analysis and Design by the Object Management Group. This paper reports on research to facilitate the formal revision of UML informal specifications. The approach is based on the algebraic specification formal theory, which is used to formalize the UML Statechart Diagrams and subsequentl...

This paper is the eighth in a series of articles examining data modeling in the Unified Modeling Language (UML) from the perspective of Object Role Modeling (ORM). Part 1 discussed historical background, design criteria for modeling languages, object reference and single-valued attributes. Part 2 covered multi-valued attributes, basic constraints, and instantiation using UML object diagrams or ...

Systems development methods have become more complex, concurrently with today’s systems. UML (Unified Modeling Language) has been criticized for its complexity, for those learning and using it. Using Rossi and Brinkkemper’s (1996) metrics, Siau and Cao, (2001) completed a complexity analysis of UML and other modeling techniques, finding that UML is more complex than other techniques. Siau, Eric...

The UML (Unified Modeling Language), with the enhancements in UML 2.0, is receiving interest by an increasing number of industrial and academic groups from the EDA, embedded software and hardware systems, who look at it and at its extension mechanisms as a practical and standard means to define family of languages targeted to specific application domains and levels of abstraction, while providi...

Unified Modeling Language (UML) is a modeling language for specifying, constructing and documenting the artifacts of the systems. Similar to programming language such as C++ and Java, UML also consists of syntax and semantics. The UML syntax is the graphical notations to draw the UML diagrams and the semantics is the meaning of the notations. The semantics is grouped into two, static or well-fo...