Prepared for:Presented by:

1
ATLANTIS2000
NATO UNCLASSIFIED
NATO Airborne Early Warning Control Programme
Management Agency

• Prepared for Presented by
• NATO IETP/IETM Exchange Meeting II Henry Ratzer
  CL/LM
• Fairmont WV, 19-21 JUL 2000 Panos Pavlidis PE/IT

NATO UNCLASSIFIED
2
Project Status

• First Prototype delivered.
• Some functionality is not yet incorporated.
• Applicability
• Notes
• History
• Second Prototype planned to be delivered in
  August.
• Include all functionality.
• Final product still on schedule for end of
  September.
• Only limited data.
• Review data using different style sheet and tool
  from the prototype.

3
System Architecture

• The two possible System Architecture approaches
  have been considered.
• Conventional
• two tier
• high scalability
• low system overhead
• proprietary interface
• Web-based
• three tier (web server middle tier)
• low scalability
• high system overhead
• web-based browser

4
Web-based Architecture Implementation
Considerations

• Database
• Small impact to assure stand-alone as well as
  networked operation
• Control Module
• Re-design the module using the web browser
  paradigm rather than the IETM Application
• Viewing Modules
• Technical Manual
• IPC
• Intelligent Wiring Diagram
• Fault Isolation and Troubleshoot Support
• Web Server
• The introduction of this middle tier should
  provide a smooth application transition
  (conventional to web-based).

5
Problems

• XML Technology
• Unavailability of development tools due to the
  relatively new XML technology.
• The implementation of XSL/XSLT is not complete
  and common standards are not necessarily followed
  by data authors and application developer.
• Coverage of all AECMA tags is complex anything
  not covered by XSL wont be displayed.
• Contradiction between SGMLs strict formality and
  XMLs freedom and extensibility.
• SGML DTD and schema versus XML namespaces.
• Authoring and Users Concept of Operation
• Paper versus Digital mindset.
• Legacy Data
• No System developed yet for easy legacy data
  conversion

6
Conclusions/Recommendations

• SGML in conjunction with formal XML/XSL.
• Use DTD and Schema.
• AECMA 1000 should cover XML.
• Some recommendation is required by AECMA for the
  XSL Transformation
• User Interface.
• Wrap IE5 browser with IETM Application
• Easy link with other Logistics Applications
• No middle (web server) tier required
• Re-engineer Authoring Process.
• Develop XML editors to assist the authors in
  writing directly on screen.
• Re-engineer Concept of Operations and Users
  Training.
• Learning curve and feedback

7
Questions

• Henry Ratzer
• NATO AWACS IETM Project Manager
• ratzer_at_napma.nato.int
• Panos Pavlidis CEng MIEE
• NAPMA IT Applications Manager
• pavlidis_at_napma.nato.int