SysML, or Systems Modeling Language, is a general-purpose systems engineering modeling language. SysML is derived from, and is an extension of, Unified Modeling Language Version 2.0. SysML specfication 1.0 was finalized April 26, 2006 and is expected to be formally ratified by member organizations in February, 2007. Systems engineering (or systems design engineering) is an interdisciplinary approach and means for enabling the realization and deployment of successful systems. ... A computer simulation or a computer model is a computer program that attempts to simulate an abstract model of a particular system. ... The Unified Modeling Language (UML) is a non-proprietary, object modeling and specification language used in software engineering. ... April 26 is the 116th day of the year in the Gregorian Calendar (117th in leap years). ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ...

A tool to connect mechanical, electrical, and software sub-systems

SysML is notable for the wide range of systems concepts it can model. In an automotive application, for example, the language can be used to specify mechanical objectives and constraints such as maximum acceleration, curb weight, air conditioning performance, and interior cabin noise management. It can specify electrical parameters ranging from the FM radio tuning sensitivty to the real-time response of the anti-lock braking control electronics. It can specify and model the embedded software used to control the on-board automotive computers. Finally, it can model the factories used to build the car, as well as the interfaces between the organizations that work in the factory. Curb weight or kerb weight is the total weight of an automobile with standard equipment, oil, lubricants, coolant, a full tank of fuel and not loaded with either passengers or cargo. ... Note: in the broadest sense, air conditioning can refer to any form of heating, ventilation, and air-conditioning. ... Acoustical engineering is the branch of engineering dealing with sound and vibration. ... FM radio is a broadcast technology invented by Edwin Howard Armstrong that uses frequency modulation to provide high-fidelity broadcast radio sound. ... Wikipedia does not have an article with this exact name. ... An anti-lock braking system (commonly known as ABS, from the German name Antiblockiersystem given to it by its inventors at Bosch) is a system on motor vehicles which prevents the wheels from locking while braking. ... An embedded system is a special-purpose computer system, which is completely encapsulated by the device it controls. ...

A notable innovation of SysML is support for requirements modeling. During the design process, designers and users of specific sub-systems can communicate the design criteria using several alternative design formats including diagrams, tables, and tree structures. The requirements provide a checkable interface and documentation of the evolution of the system design over time.

SysML does not replace the simulation tools used to model specific subsystems, but rather provides the "glue" to model the interaction between subsystems.

SysML holds particular appeal for the aerospace industry which designs products with highly optimized electrical, mechanical, and software sub-systems. In creating a standardized modeling language, it is hoped that the design tradeoffs can be better managed. Look up aerospace in Wiktionary, the free dictionary. ...

Sponsorship

SysML is sponsored by the Object Management Group (OMG) and INCOSE. Object Management Group (OMG) is a consortium, originally aimed at setting standards for distributed object-oriented systems, and now focused on modeling (programs, systems and business processes) as well as model-based standards in some 20 vertical markets. ...

The language was developed to meet the requirements contained in the UML for Systems Engineering RFP (ad/2003-03-41).

Partners

The following companies submitted or supported parts of the specification of SysML

Industry

Systems plc is the worlds fourth largest defence contractor and a commercial aerospace products manufacturer. ... The Boeing Company (NYSE: BA)(TYO: 7661 ) is the worlds largest aircraft manufacturer, headquartered in Chicago, Illinois, with its largest production facilities in Everett, Washington, about 30 miles north of Seattle, Washington. ... A John Deere 7800 tractor attached to a hairy beaver A JD 9410 combine A John Deere 9520T Image:Combine 9860sts action96803. ... The European Aeronautic Defence and Space Company EADS N.V. (EADS) (Euronext: EAD, FWB:EAD) is a large European aerospace corporation, formed by the merger on July 10, 2000 of Aérospatiale-Matra of France, DaimlerChrysler Aerospace AG (DASA) of Germany, and Construcciones Aeronáuticas SA (CASA) of Spain. ... Israel Aircraft Industries or IAI is Israels prime aerospace and aviation manufacturer, producing aerial systems for both military and civilian usage. ... Lockheed/BAE/Northrop F-35 Lockheed Trident missile C-130 Hercules; in production since the 1950s, now as the C-130J Lockheed Martin (NYSE: LMT) is an aerospace manufacturer formed in 1995 by the merger of Lockheed Corporation with Martin Marietta. ... Motorola (NYSE: MOT) is an international communications company based in Schaumburg, Illinois, a Chicago suburb. ... The Northrop Grumman Corporation (NYSE: NOC) is an aerospace and defense conglomerate that is the result of a 1994 merger between Northrop and Grumman. ... Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...

US Government

This article or section does not cite its references or sources. ... The Caltech Jet Propulsion Laboratory (JPL), in La Cañada Flintridge, near Pasadena, California, USA, builds and operates unmanned spacecraft for the National Aeronautics and Space Administration (NASA). ... As a non-regulatory agency of the United States Department of Commerce’s Technology Administration, the National Institute of Standards (NIST) develops and promotes measurement, standards, and technology to enhance productivity, facilitate trade, and improve the quality of life. ... DOD is a three letter acronym which holds several meanings: The United States Department of Defense; Day of Defeat, a computer game, modification of Half-Life; Direct Outward Dial(ing), a telephone service used within a PBX; Drink or Die, a major and now defunct software cracking and warez trading...

Vendors

Academia

• Georgia Institue of Technology

Liasons

CCSDS Logo (NASA) The Consultative Committee for Space Data Systems (CCSDS) is an international organization of major national space agencies and industry partners formed in 1982 that peacefully cooperate in the development of standards to promote interchange of space-related information. ...

External links

• EE Times article on SysML (May 8, 2006)
• www.SysML.org