with recent developments in communication technologies, it is possible to access information any time and in any place; however, mobile environments bring forward certain requirements and exclusive challenges including low connection speeds and bandwidth limitations. thus, we need to consider mobile limitations when using web services. providing services and limited resource allocation to users...

W u d As automated manufacturing systems become more complex, the need for an effective design tool to p d u c e both high level Discrete Event Control System (DECS) and low level implementation, becomes increasingly more important Petri nets represent the most effective method for both the design and implementation of DECSs. The conversion of such Petri nets into ml-time applications has mnt l...

Petri nets have become a mature modelling and analysis tool applicable in many application domains. Since the introduction of the Petri net concept in 1962 (Petri 14]), Petri nets have been investigated and applied by many researchers. Many extensions of the classical Petri net have been proposed. To model attributes, `colour' has been added. Time concepts have been added to describe the tempor...

In the long history of Petri nets a universe of Petri nets has evolved consisting of an enormously rich theory, a wide variety of tools, and numerous successful applications and case studies in various application domains. This vast variety is not any more handable for anyone working with Petri nets, which results in the strong need of a structured access to Petri nets. This structured access h...

This paper gives the Petri net ontology as the most important element in providing Petri net support for the Semantic Web. Available Petri net formal descriptions are: metamodels, UML profiles, ontologies and syntax. Metamodels are useful, but their main purpose is for Petri net tools. Although the current Petri-net community effort Petri Net Markup Language (PNML) is XMLbased, it lacks a preci...

The basic concepts of the Petri Net Baukastenn are introduced. The Petri Net Baukastenn is a Petri net technology and provides Petri net techniques. The Petri Net Baukastenn is consists of the Common Base and three diierent views, the Application Developer View, the Tool Developer View, and the Expert View. The main focus is to support the application developer and the tool developer as well as...

This article presents several diierent kinds of Petri nets, together with computer tools based on them, and compares possibilities of their application in the area of simulation and modelling. Place/transition Petri nets, stochastic Petri nets, hierarchical coloured Petri nets and nally object oriented Petri nets are mentioned here. As for the tools, Design/CPN, TimeNET, LOOPN++ and PNtalk are ...

Algebraic Petri nets is a well suited formalism to represent the behavior of concurrent and distributed systems by handling complex data. For the analysis of systems modelled in Algebraic Petri nets, model checking and testing are used commonly. Petri nets slicing is getting an attention recently to improve the analysis of systems modelled in Petri nets or Algebraic Petri nets. This work is ori...

There exist many diierent Petri net formalisms. In this paper, we present the Petri Net Cube which helps to structure and classify the variety of Petri net formalisms. We show, that three basic aspects are suucient for describing most classical Petri net formalisms. Since these aspects are independent of each other, we call them the Dimensions of Petri Nets.

The Petri Net Markup Language (PNML) is an XML-based interchange format for Petri nets. In order to support different versions of Petri nets and, in particular, future versions of Petri nets, PNML allows the definition of Petri net types. Due to this flexibility, PNML is a starting point for a standard interchange format for Petri nets. This paper discusses the design principles, the basic conc...