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  Tutorial: Real-Time UML: Developing Efficient Objects for Embedded Systems

With the development and wide adoption of a standard notation, the Unified Modified Language (UML), real-time systems developers can now avail themselves of the benefits and advantages of object technology.

Tutorial Details:

UML is a 3rd generation modeling language which rigorously defines the semantics of the object metamodel and provides a notation for capturing and communicating object structure and behavior. It is particularly well-suited to modeling real-time and embedded systems. Real-Time UML is the introduction that developers of real-time systems need to make the transition to object-oriented analysis and design and modeling with UML. It covers the important features of the UML and shows how to effectively use the UML to model real-time.

Doing Hard Time:
Developing Real-Time Systems with UML, Objects, Frameworks, and Patterns provides an excellent guide to using today's cutting-edge software-engineering techniques to develop software for embedded systems. Author Bruce Powel Douglass begins by championing the advantages of objects for embedded development and then shows off basic UML document types. Next he addresses the difficulties of writing embedded systems. He looks at the restricted resources of embedded hardware and design issues regarding memory management and event handling. The book expertly discusses the difference between the reliability and safety of software. (It describes the use of a number of patterns that can be used to provide safe operation in the event of single-point failure of a system.) Rapid Object-Oriented Process for Embedded Systems (ROPES) finds its way to the heart of the text, a development process tailored to real-time software. Besides an introduction to iterative software development, the author walks the reader through the steps required for analysis, design, and eventual implementation of real-time software. The samples (which include several medical devices and a small air traffic control system) are exceptionally rich in detail and often use advanced aspects of UML notation. Later sections concentrate on the latest in pattern design for embedded software used to manage threads and schedulability. The book closes with a tour of dynamic modeling, real-time frameworks--specifically, the I-Logix Rhapsody Object Execution Framework (OXF)--and details of the Rhapsody modeling tool. In all, Doing Hard Time delivers real technical expertise for any potential embedded software developer in a thorough and digestible format.


 

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