We present a MOF-based metamodel for the SA/RT (Structured Analysis for Real-Time Systems) design method. The metamodel is designed to be easily combined with the UML 1.4 metamodel, thus allowing data flow information to be incorporated into UML models. The metamodel has been developed and tested in a graphical fashion, using the Software Modeling Workbench tool developed at TUCS.

The evolution of software systems often produces incompatibilities with existing data and applications. To prevent incompatibilities, changes have to be wellplanned, and developers should know the impact of changes on a software system. This consideration also applies to the field of model-driven development, where changes occur with the modification of the underlying metamodels. Models that ar...

To focus only on those parts of a metamodel that are of interest for a specific task requires techniques to generate metamodel snippets. Current techniques generate strictly structure-preserving snippets, only, although restructuring would facilitate to generate less complex snippets. Therefore, we propose metamodel shrinking to enable type-safe restructuring of snippets that are generated from...

This paper reports on the design and development of a Measurement Metamodel to facilitate the Implementation and Monitoring of Software Improvement initiatives. The Indicators provided for the Measurement Metamodel are building on a Data Warehouse environment. The Measurement Metamodel is designed based on the International Standard ISO 15939 – Software Measurement Process [1]. The Measurement ...

Modeling tools move towards more and more abstract approaches such as metamodels and the four-layer metamodeling architecture. We address modeling tools using the UML metamodel as a core. We propose a fourlayer metamodeling architecture based upon a two-fold structure of metametamodel and metamodel layers. The meta-metamodel layer is populated with a lattice of modeling paradigms that are insta...

ion to represent associations among different concepts (e.g., actors, use case, class, etc.). Underlying these diagrams and modeling concepts is the UML metamodel which is built on top of MOF as given in Figure 2a: M3 is a meta-meta library for defining new metamodels; M2 is at the metamodel layer where models such as UML, ODM, and NeOn (Haase, Rudolph, Wang, & Brockmans, 2005) can be defined; ...

In this paper we investigate the required features of a standard object database metamodel. We present a role of a metamodel in an object-oriented database management system and compare it with the proposal defined in the ODMG standard. After outlining the metamodel definition included in the standard we briefly identify its main drawbacks. We suggest several changes to the ODMG metamodel defin...

Several process metamodels exist. Each of them presents a different viewpoint of the same information systems engineering process. However, there are no existing correspondences between them. We propose a method to build unified, fitted and multi-viewpoint process metamodels for information systems engineering. Our method is based on a process domain metamodel that contains the main concepts of...

This article explores the use of metamodels as simulation building blocks. The metamodel replaces a part of the simulation model with a mathematical function that mimics the input–output behavior of that part, with respect to some measure of interest to the designer. The integration of metamodels as components of the simulation model simplifies the model and reduces the simulation time. Such us...