A Practical Guide to SysML: The Systems Modeling Language

A Practical Guide to SysML: The Systems Modeling Language

Sanford Friedenthal, Alan Moore

Language: English

Pages: 576

ISBN: 0123743796

Format: PDF / Kindle (mobi) / ePub

Systems engineers must understand how all the parts of a digital system work together, including hardware AND software. SysML is the first design language to cover both hardware and software, allowing engineers to consider how all the parts of a system will successfully interact, from the very beginning of a project. This can prevent huge problems and delays down the line. Therefore, SysML use is becoming a widespread phenomenon, and many companies, especially in the defense, automotive, aerospace, medical device and telecommunications industries, are already using SysML, or are planning to switch over in the near future.

Until now, little consolidated information has been available on the market regarding SysML. However, this book changes all that! It provides the hundreds of thousands of new users with a comprehensive guide to SysML, including a full description of the language itself, detailed instructions on how to implement it, exercises to help readers gain practical experience working with SysML, and extensive, real-world examples of actual successful projects, demonstrating all the benefits SysML can provide.

*The authoritative guide for understanding and applying SysML
*Authored by the foremost experts on the language
*Language description, examples, and quick reference guide included

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Requirements contained in each specification are modeled in a containment hierarchy partitioning them into a tree structure that corresponds to how the specification is organized. The individual or aggregate requirements within the containment hierarchy can then be linked to other requirements in other specifications and to model elements that represent the system design, implementation, or test cases. The derivation, satisfaction, verification, refinement, trace, and copy relationships supports.

Documentation about the system to contro lling the model of the system . MBSE int egrates system requirements, design , an alysis, and verification models to add res s multiple asp ects of the system in a co he sive manner, rather than a disparate co llection of indi vidual models. MBSE provides an opportunity to add ress many of the limitations of the docum ent-based appro ach by providing a more rigorous means for capturing and integrating system requirements, design , analysis, and.

Compartments like block symbols. Figure 6.32 shows five interfaces that describe different logical groupings of services. Camera Control contains a set of operations that provide support fur controlling the camera. Test Tracking contains a set of receptions that allow the reporting of progress during camera testing. The other interfaces support other services (e.g., user and route management). Adding Interfaces to Standard Ports A required interface on a port specifies one or more operations.

«interlace» ICameraSignals Relay Read Response Response ----~LOgOn , Successful] receptions «signal"StartTest SignalO «sfqnalvStop Test Signal0 «signa!»ShutdownO «signal»Start UPO ~---------- --------------, {>3 Failures] contig : Configuration Data {direction = in} I MPEG output: MPEG4 {stream, direction = out} current image: Light {stream, direction = in} composite out: Composite {stream, direction = out} I I FIGURE 8.22 A block with flow portsand a block behavior. FIGURE 8.21.

However, by convention, the relationship from activities to object cv3 focused light captured image current image FIGURE 8.26 Activity hierarchy with parameters. ~n 207 . . ""..... ...... ",...1 1 _ ....... ,.,"'~""" '0 ' ,_ .. _ _ "''''~ ~"" ,_ . . _. nodes is represented with a reference association because the tokens contained within the object nodes are references to entities that are not "part" of the executing activity, and they are not necessarily destroyed when the.

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