We are publishing this preliminary edition in three volumes. The first volume serves as an introduction and describes a set of general tools for modeling the complexities of real-time systems. The second volume addresses the techniques of essential modeling (loosely, systems analysis). It shows how the tools are used to construct a model of what needs to be done. The third volume addresses the techniques of implementation modeling (loosely, systems design). These techniques use the tools described in the introductory volume plus some additional tools to construct a model of the chosen solution.

We are eagerly seeking feedback from our professional colleagues on improvements in presentation and content. We intend to incorporate this feedback into a subsequent edition of this book to be published in the near future.