From: e.b.jackson@larc.nasa.gov (Bruce Jackson) Subject: Proposed Flight Dynamic Simulation exchange standard - DAVE-ML Newsgroups: sci.aeronautics.simulation To: sci-aeronautics-simulation@moderators.isc.org Date: 23 Jun 2003 10:07:34 -0700 Organization: http://groups.google.com/ I wanted to let the flight sim community know of a new web site that describes DAVE-ML, and to invite participants to help guide future such developments. DAVE-ML is an attempt to encode flight dynamic models using open standards, suitable for use on engineering development and flight control design simulations, including real-time piloted and desktop CAD analysis tools. DAVE-ML was motivated to reduce the amount of time required to rehost simulation models from one simulation facility to another without proprietary tools. XML (eXtensible Markup Language) is a rapidly growing W3C-approved standard for the storage and exchange of data, in a manner similar to the way HTML is used to exchange formatted information. Use of XML to store any type of data reaps benefits by being able to use computer tools to create, edit, transform (including creating documentation) and validate the information. DAVE-ML is a syntax based on XML. It takes advantage of existing XML technologies, including MathML for equation representation, and XSLT to transform the models into documentation and other formats. DAVE-ML also makes use of developing AIAA standards to include statistics (such as 3-sigma bounds), use of standard variable names and axes conventions, and references to data documentation. A DAVE-ML file can contain the complete description of the flight vehicle aerodynamic model, including data tables, buildup equations, and documentation, in a facility- and programming-language independent open standard. A group of professional simulation providers is currently testing the DAVE-ML concept to exchange aerodynamic models between normally incompatible simulation facilities. Other people are working on tools to make it easier to convert existing simulation models into DAVE-ML More information about this project, sample DAVE-ML aircraft "databases" and instructions on how to subscribe to a related simulation standards discussion group, are available at --Bruce Jackson Bruce Jackson mailto:e.b.jackson@nasa.gov Dynamics and Control Branch 18C West Taylor Street MS 132 Airborne Systems Competency NASA Langley Research Center Building 1192C, Room 149 Hampton, VA 23681-0001 scud://N 37 05'31.7" W 76 22'55.1" http://dcb.larc.nasa.gov/DCBStaff/ebj/ebj.html "There is no try"