26 research outputs found
Peer-To-Peer Technology for Interconnecting Web Services in Heterogeneous Networks
No full textThe interconnection of software components is a key to enabling collaborative work. However, technology differences and security barriers like firewalls often hinder establishing collaborative infrastructures between enterprises or even within a single enterprise. We introduce a peer-to-peer based network infrastructure that transparently overcomes these problems using relay and routing mechanisms as well as different underlying transport protocols. We discuss the application of this technology to interconnect Web Services. 1
Towards Employing UML Model Mappings for Platform Independent User Interface Design
No full textWhile model based design of platform independent application logic has already shown significant success, the design of platform independent user interfaces still needs further investigation. Nowadays, user interface design is usually platform specific or based on C-level cross-platform libraries. In this paper, we propose a MDA like design approach for user interfaces based on the transformation of UML models at different levels of abstraction. This enables platform independent design of user interfaces and a clear separation of UI and application logic design while enabling full use of native controls in the actual user interface implementation. 1
Model-based Development of Embedded Systems: Executable Models vs. Code Generation
No full textAbstract. The use of models during the development of embedded systems is nowadays fairly limited. During the evolution of the system, the implementation and the design models often tend to get out of sync. The use of Model Driven Architecture in the development of embedded systems makes this problem more imminent, as it is much more demanding by introducing two separate modeling levels. Thus, there is a need to introduce techniques that overcome this problem. Complete code generation and the use of executable models potentially eliminate the need for a manual implementation that may get out of sync with the design models. We discuss important properties of such approaches and outline the advantages and possibilities of using a UML virtual machine in embedded systems.
UML Model Mappings for Platform Independent User Interface Design
No full textAbstract. While model based design of platform independent application logic has already shown significant success, the design of platform independent user interfaces still needs further investigation. Nowadays, user interface design is usually platform specific or based on C-level cross-platform libraries. In this paper, we propose a MDA like design approach for user interfaces based on the transformation of UML models at different levels of abstraction. This enables platform independent design of user interfaces and a clear separation of UI and application logic design while enabling full use of native controls in the actual user interface implementation.
On the pitfalls of UML 2 activity modeling
No full textWith the introduction of new Petri Net-like semantics for Activities in UML 2.0, these have become a complete language for modeling behavior. Thus, UML Activities are nowadays investigated for application in many areas from embedded systems to business process modeling. However, some issues have been discovered that currently seem to limit the practical applicability of Activities. In this paper, we present an overview of the identified semantic and syntactic problems, and point at possible solutions and directions for future research. 1
Distributed Engineering Environment for the Design of Electronic Systems
No full textComputer supported collaborative work (CSCW) is currently of growing interest for application industrial context. Integrated workflow systems are available to allow the integration of globally distributed teams. However, in many areas (i.e. in electronic design automation), tool integration remains to be a critical issue since existing legacy tools have to be integrated into distributed workflows. By integrating tools based on the operational semantics, dynamic assignment and replacement of tools in the workflows becomes possible. We present a middleware for secure collaborative engineering that enables flexible tool management and overcomes existing networking problems through a peer-to-peer based network infrastructure
A Model-Based Approach for Platform-Independent Binary Components with Precise Timing and Fine-Grained Concurrency
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