When I was 10 years old, I purchased an introductory electronics book at a local pharmacy. I cherished this book because I knew it contained marvelous and fascinating knowledge about electronics—an awesome, mysterious, and exciting field that was to become the literal foundation of the next step in human progress. Unfortunately, after...

Develop rigorous yet understandable graphical representations of business processes

Business Process Modeling Notation (BPMN) is a standard, graphical modeling representation for business processes. It provides an easy to use, flow-charting notation that is independent of the implementation environment. An underlying rigor...

The world of enterprise routing with Juniper Networks devices is getting very exciting—new technologies, products, and network developments are making the enterprise network environment one of the most dynamic places to be. However, we, the authors, hope to focus that energy by providing you with a detailed and practical...

The Semantic Web, which is intended to establish a machine-understandable Web, is currently changing from being an emerging trend to a technology used in complex real-world applications. A number of standards and techniques have been developed by the World Wide Web Consortium (W3C), e.g., the Resource Description Framework (RDF), which...

Secret writing for the transmission of messages has been practiced for nearly 4,000 years. According to David Kahn, the great historian of cryptology, the first example of an intentionally altered message can be traced to a tomb in ancient Egypt dated about 1900 b.c. In the 40 centuries since that...

A constraint is a restriction on a space of possibilities; it is a piece of knowledge that narrows the scope of this space. Because constraints arise naturally in most areas of human endeavor, they are the most general means for formulating regularities that govern our computational, physical, biological, and social worlds. Some...

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