2003 knowledge based systems, inc. xml-based neutral language for data display systems 112 th rcc...
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2003 Knowledge Based Systems, Inc.
XML-Based Neutral Language for Data Display Systems
112th RCC Telemetry Group Conference
California, MD
August 24th, 2005
John Hamilton
Ron FernandesKnowledge Based Systems, Inc.
2003 Knowledge Based Systems, Inc.
Agenda
• Background• Motivation• Data Display Markup Language (DDML)• Data Display Model Repository and Translator
Framework (DDTF)• Applications• Conclusions
2003 Knowledge Based Systems, Inc.
Background • Work based on a Phase I and II SBIR sponsored by
Edwards Air Force Base• Technical POC: Dr. Charles Jones• Work with
– China Lake / Lockheed Martin, Ridgecrest– NAWS, Pt. Mugu– Pax River Test Range Center– PM Utility Helicopter, U.S. Army– Sherrill-Lubinski Corp– Symvionics Corp.– Bruce Lipe, EAFB– Jon Morgan, EAFB
• Project ends Nov 2006
2003 Knowledge Based Systems, Inc.
Why Neutral Language?
• Data display setup is a lengthy procedure• Diverse data display systems• Test and Evaluation (T&E) performed at
different locations• Need reuse of displays for joint service
T&E missions– Joint Strike Fighter (JSF)– Joint Air-to-Surface Standoff Missile (JASSM)
2003 Knowledge Based Systems, Inc.
Why Neutral Language? • Currently, displays are created manually
• Develop translators without neutral language
Vendor6
Vendor1
Vendor2
Vendor3
Vendor4
Vendor5
2003 Knowledge Based Systems, Inc.
Why Neutral Language? • Develop translators with neutral language
DDML Document
Vendor1
Vendor2
Vendor3
Vendor4
Vendor5
Vendor6
2003 Knowledge Based Systems, Inc.
Data Display Markup Language• Based on eXtensible Markup Language (XML)• Four logical layers: graphics resources, dynamics,
variables and data sources• Includes most T&E display objects
– plotters, meters, strip charts, etc.
• Primitive graphics resources based on Scalable Vector Graphics (SVG)– rectangles, lines, etc.
• Generic to support nonstandard objects
2003 Knowledge Based Systems, Inc.
Data Display Markup Language• Layers similar to typical software architecture
Typical Software Layer(e.g., Model-View Architecture)
Persistence(load, save, etc.)
Information Management(objects, variables, etc.)
Graphics Resources(controls, color, etc.)
User Interfaces(rendering, display, etc.)
DDML Layers
Data Sources
Data variables and derived data
Graphics Resources(position, color, etc.)
Dynamics
2003 Knowledge Based Systems, Inc.
DDML Design
• DDML is generic enough to support multiple data display systems, despite– Nomenclature differences across tools– Different functionality and focus for each system– Architectural differences and fuzzy specification
of architectural layers– Nonstandard, tool-specific concepts
2003 Knowledge Based Systems, Inc.
DDML Design artifacts
• Data dictionary – Excel-based– Maps vendor objects to DDML elements and
attributes
• IDEF1X data model
• Special mapping rules file
• XMLSpy model
• DTD and XML Schemas
2003 Knowledge Based Systems, Inc.
DDML Data Dictionary• Dictionary of DDML terms and description• Includes corresponding terms in SL, IADS,
DataViews, RangeView, GRIDS, etc. • Logically, each term is of the following four
types– Element (document type definition [DTD] element)– Attribute (DTD attribute)– User-defined parameter
• <param name=“xxx” value=“yy” type=“string”>
– User-defined object type• <object name=“MySC” type=“Mike’s Meter”>
2003 Knowledge Based Systems, Inc.
DDML Details
• <model> contains all display objects on a given screen.
• Standard display objects including– <stripchart> – <barchart>– <piechart>– <dial>– <slider>
• Non-Standard/Custom objects– <object>
2003 Knowledge Based Systems, Inc.
DDML Structure
2003 Knowledge Based Systems, Inc.
• Example 1: 3x2 - 2(sin y)2
<exp
<exp coef=“3” power=“2” var_ref=“x” />
<exp coef=“-2” power=“2” oper=SIN var_ref=“y” />
</exp>
• Example 2: 4x2 - 5(sin (y2 + z2) )<exp
<exp coef=“4” power=“2” var_ref=“x” />
<exp coef=“-5” power=“0.5” oper=SIN>
<exp coef=“1” power=“2” var_ref=“y” />
<exp coef=“1” power=“2” var_ref=“y” />
</exp>
</exp>
DDML Support for Derived Data
2003 Knowledge Based Systems, Inc.
DDML
GE DataViews
Symvionics’ IADSILIAD / SL-GML
Example of using DDML
• DDML serves as the interlingua
C / OpenGL
GRIDS
RangeView
2003 Knowledge Based Systems, Inc.
DDML Documentation
• Translator development methodology is documented– Internal and external translators;– What’s common to both types– To be presented at ITC 2005
• DDML website maintenance– http://www.kbsi.com/DDML/DDML.htm
2003 Knowledge Based Systems, Inc.
Mapping DDML to a new Target• Each tool/system must map its concept to that
of DDML – Add display objects to data dictionary– Map objects to DDML objects– Define extra/special rules for mapping– Catalog non-standard display objects
• Translator must encode these rules to read/write DDML– Internal Vs. External Translator
2003 Knowledge Based Systems, Inc.
Data Display Translator Framework• DDML Model Repository with Translators
2003 Knowledge Based Systems, Inc.
Data Display Translator Framework• Phase II: DDML Browser
2003 Knowledge Based Systems, Inc.
Data Display Translator Framework• Phase II: DDML Query Tool
2003 Knowledge Based Systems, Inc.
DDML Benefits• Supports interoperability of display systems
– Same look and feel across environments and test centers
• Vendor-independent way of cataloging display information
• Can be used in various environments– T&E missions– Industrial process control– Cockpit and automobile dashboards – Health monitoring: man and machine
2003 Knowledge Based Systems, Inc.
Conclusions• DDML is a generic XML-based neutral
language for data display applications• DDML has been tested to support at least
three vendor-specific formats• DDTF provided integrated framework for
future translators• DDML and DDTF have applications
beyond T&E
2003 Knowledge Based Systems, Inc.
Points of Contact
• Dr. Charles Jones, AFFTC, EAFB– [email protected]
• Mike Graul, KBSI– [email protected]
• John Hamilton, KBSI– [email protected]
• Ronald Fernandes, KBSI– [email protected]