This paper motivates why Real-Time Maude should be well suited to provide a formal semantics and formal analysis capabilities to modeling languages for embedded systems. One can then use the code generation facilities of the tools for the modeling languages to automatically synthesize Real-Time Maude verification models from design models, enabling a formal model engineering process that combin...

This article describes our approach for the specification and verification of production automation systems with real-time properties. We focus on the graphical MFERT notation and RT-OCL (Real-Time Object Constraint Language) for the specification of state-oriented real-time properties. RT-OCL is an extension of the Object Constraint Language (OCL) that is part of the Unified Modeling Language ...

ArchiTRIO [14] is a formal language, which complements UML 2.0 concepts with a formal, logic-based notation that allows users to state system-wide properties, both static and dynamic, including realtime constraints. In this paper we present the semantics of the core concepts of the ArchiTRIO language. As the core elements of ArchiTRIO coincide with those of UML 2.0 (operation, interface, port, ...

The engineering of systems that are acceptably correct is a hard problem. On the one hand, semi-formal modelling approaches that are used in practical, large-scale system development, such as the UML, are not amenable to formal analysis and consistency checking. On the other hand, formal modelling and analysis requires a level of competence and expertise that is not common in commercial develop...

In this paper, we demonstrate feasibility of a development framework that integrates semi-formal graphical modeling techniques with formal methods (FMs). In particular, the framework integrates the Unified Modeling Language (UML) with the PVS environment to exploit the synergy between them. System descriptions are given in the graphical UML notations and translated into PVS specifications based...

The formal language is the formalization of SystemC. The language semantics of was formally defined in a standard structured operational semantics (SOS) style. In this paper, we first provide an overview of the current status of the formal language and show some practical applications of . Then, we give an outline for the latest developments of . These developments include extensions of ! for m...

The Model Driven Architecture (MDA) involves automated transformations between software models defined in different languages at different abstraction levels. This paper takes an MDA approach to integrate a formal modeling language (Object-Z) with an informal modeling language (UML) via model transformation. This paper shows how formal and informal modeling languages can be cooperatively used i...

In this work we present a visual model called CO Diagrams for the specification of e-contracts. This model includes specification of obligations, permissions, prohibitions, reparations and restrictions such as real time constraints. We also define a formal semantics of the visual model intended for the analysis and verification of the modeled contracts.

This article surveys recent research in the area of language modeling (sometimes called statistical language modeling) approaches to information retrieval. Language modeling is a formal probabilistic retrieval framework with roots in speech recognition and natural language processing. The underlying assumption of language modeling is that human language generation is a random process; the goal ...

Modeling is becoming increasingly important both as a way to learn science and mathematics, and as a useful cognitive skill. Although many learning activities qualify as “modeling”, this article focuses on activities where (1) students construct a model rather than explore a given model, (2) the model is expressed in a formal language rather than drawings, physical objects or natural language t...