Grzegorz Rozenberg

Kurt Jensen

High-level Petri nets are now widely used in both theoretical analysis and practical modelling of concurrent systems. The main reason for the success of this class of net models is that they make it possible to obtain much more succinct and manageable de scriptions than can be obtained by means of low-level Petri nets-while, on the other hand, they still offer a wide range of analysis methods and tools. The step from low-level nets to high-level nets can be compared to the step from assembly languages to modem programming languages with an elaborated type concept. In low-level nets there is only one kind of token and this means that the state of a place is described by an integer (and in many cases even by a boolean value). In high-level nets each token can carry complex information which, e. g. , may describe the entire state of a process or a data base. Today most practical applications of Petri nets use one of the different kinds of high-level nets. A considerable body of knowledge exists about high-level Petri nets this includes theoretical foundations, analysis methods and many applications. Unfortunately, the papers on high-level Petri nets have been scattered throughout various journals and collections. As a result, much of this knowledge is not readily available to people who may be interested in using high-level nets.

Theory and Application

High-level Petri Nets

Basic Concepts, Analysis Methods, and Practical Use

Coloured Petri Nets

The contents of this volume are application oriented. The volume contains a de tailed presentation of 19 applications of CP-nets, covering a broad range of ap plication areas. Most of the projects have been carried out in an industrial set ting. The volume presents the most important ideas and experiences from the projects, in a way which is useful also for readers who do not yet have personal experience with the construction and analysis of large CPN models. The volume demonstrates the feasibility of using CP-nets and the CPN tools for industrial projects. The presentation of the projects is based upon material provided by the per sons who have accomplished the individual projects. At the beginning of each chapter, we list their names and we say where the original material has been published. The original material often contains more elaborate information, e.g., about details of the modelled system and related work. I have edited the material provided by the original authors. I have modified some of the CP-nets, e.g., to improve the layout and use more mnemonic names. In some cases, I have also changed a few net components, e.g., merged two tran sitions or introduced a Standard ML function for operations that are used in many arc expressions. These modifications make the CP-nets more appropriate as study material, but they do not change the essential behaviour of the CPN models.

Basic Concepts, Analysis Methods and Practical Use

What if in the future there really was a perfect race, or at least the beginnings of one? Well, that is exactly what started on Earth in a secret laboratory, and when K1374, or the being more commonly known as “K” escaped, the galaxy had never seen anything comparable to her abilities and strength. Once K arrives on her new planet, she learns about many different cultures, customs and individuals, and eventually becomes a revered leader among her people. A true warrior, she defends those she cares about and annihilates those attempting to do harm, all the while watching over her shoulder for representatives from Earth who might coming looking for her. Having a family and leading the way into the future is what drives this truly “perfect being” in her quest for happiness. Follow her gripping adventures in this new-age science fiction tale

Look What They Have Done Now

The Advanced Human

This book constitutes the refereed proceedings of the 10th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, TACAS 2004, held in Barcelona, Spain in March/April 2004. The 37 revised full papers and 6 revised tool demonstration papers presented were carefully reviewed and selected from a total of 162 submissions. The papers are organized in topical sections on theorem proving, probabilistic model checking, testing, tools, explicit state and Petri nets, scheduling, constraint solving, timed systems, case studies, software, temporal logic, abstraction, and automata techniques.

10th International Conference, TACAS 2004, Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2004, Barcelona, Spain, March 29 - April 2, 2004, Proceedings

Tools and Algorithms for the Construction and Analysis of Systems

This three-volume work presents a coherent description of the theoretical and practical aspects of coloured Petri nets. These CP-nets are shown to be a full-fledged language for the design, specification, simulation, validation and implementation of large software systems. The introductory first volume contains the formal definition of CP-nets and the mathematical theory behind their analysis methods. It gives a detailed presentation of many small examples and a brief overview of some industrial applications. The purpose of the book is to teach the reader how to construct CP-net models and analyse them by means of simulation. The book is also attractive to readers who are more interested in applications than in the underlying mathematics.

Wil van der Aalst

Maciej Koutny

Karsten Wolf

Gianfranco Balbo

These Transactions publish archival papers in the broad area of Petri nets and other models of concurrency, ranging from theoretical work to tool support and industrial applications. ToPNoC issues are published as LNCS volumes, and hence are widely distributed and indexed. This Journal has its own Editorial Board which selects papers based on a rigorous two-stage refereeing process. ToPNoC contains: - Revised versions of a selection of the best papers from workshops and tutorials at the annual Petri net conferences - Special sections/issues within particular subareas (similar to those published in the Advances in Petri Nets series) - Other papers invited for publication in ToPNoC - Papers submitted directly to ToPNoC by their authors The 7th volume of ToPNoC contains revised material from the 5th International Summer School “Advanced Course on Petri Nets”, held in September 2010 in Rostock, Germany. The nine papers cover a diverse range of topics including modeling, verification, partial order semantics, and synthesis of Petri nets. In compliance with their origin as course material, the papers are written in survey or tutorial style and give a comprehensive overview of the state of the art in their respective areas.

Transactions on Petri Nets and Other Models of Concurrency VII

"Unlike most books on Petri nets, which try to illustrate all aspects of the formalism, this volume focuses on a specific subject: the analysis of CP-nets. - The style, exercises, and bibliographical remarks makes this book useful as a textbook for an advanced course on CP-nets, which should follow a course based on the first volume." (M. Pezzè in Computing Reviews, August 1996)

Susanna Donatelli

This book presents archival papers on Petri nets and other models of concurrency, ranging from theoretical work to tool support and industrial applications. Includes a selection of the best papers from workshops and tutorials at annual Petri net conferences.

Transactions on Petri Nets and Other Models of Concurrency IV

Andreas Podelski

This volume contains the proceedings of the 10th International Conference on Tools and Algorithms for the Construction and Analysis of Systems (TACAS 2004). TACAS 2004 took place in Barcelona, Spain, from March 29th to April 2nd, as part of the 7th European Joint Conferences on Theory and Practice of Software (ETAPS 2004), whose aims, organization, and history are detailed in a foreword by the ETAPS Steering Committee Chair, Jos ́ e Luiz Fiadeiro. TACAS is a forum for researchers, developers, and users interested in ri- rously based tools for the construction and analysis of systems. The conference serves to bridge the gaps between di?erent communities including, but not - mited to, those devoted to formal methods, software and hardware veri?cation, static analysis, programming languages, software engineering, real-time systems, and communication protocols that share common interests in, and techniques for, tool development. In particular, by providing a venue for the discussion of common problems, heuristics, algorithms, data structures, and methodologies, TACAS aims to support researchers in their quest to improve the utility, rel- bility, ?exibility, and e?ciency of tools for building systems. TACASseekstheoreticalpaperswithaclearlinktotoolconstruction,papers describingrelevantalgorithmsandpracticalaspectsoftheirimplementation,- pers giving descriptions of tools and associated methodologies, and case studies with a conceptual message.

A serial killer is often chronically aggressive and they seem to have an over-controlled hostility towards others. Often they have been hurt and are resentful and traumatized. They become obsessive, paranoid and then insane. At this point they have lost control and can no longer control their needs. It is disturbing to note that serial killers are actually very rational and calculating. When it comes to serial killers many were physically or emotionally abused by parents, as children, fledgling serial killers often set fires, torture animals, and wet their beds. Surprisingly many have either attempted to become police, but were rejected, worked as security guards, or served in the military. In this book we will look at many aspects of the serial killer; for instance what qualifies as a serial killer? How do they choose their victims? Who are some of the most famous serial killers? And, we will look more closely at the unsolved murders by serial killers.

Kurt Jensen

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