1. Clear Methods Web-based Modeling & Simulation Workshop
Reston, VA October 30, 2003
Clear Methods
Christopher Fry Founder & Chief Scientist
Jay Conne Director, Bus. Dev. & Training

2. Clear Methods Founded June 2001 by Mike Plusch & Christopher Fry
MIT, Sloan School, AI Lab
Published two books and many articles
Water: Simplified Web Services and XML Programming, Wiley, 2003

3. The problem…
Technology
& Psychology

4. The problem…
Complexity
&
Consequences

5. Partial Solutions – tacked together
Complexity
Partial Solutions – tacked together

6. Complexity
Add the Web

7. Reality

8. Design … limited by technology
Consequences
Design … limited by technology

9. Learning … scope and time
Consequences
Learning … scope and time

10. Debugging … requires too many skills
Consequences
Debugging … requires too many skills

11. Build a test harness for this?
Consequences
Testing
Build a test harness for this?

12. Consequences
Maintainability

13. Upgrading … version skew
Consequences
Upgrading … version skew

14. Scaling … layers of latency
Consequences
Scaling … layers of latency

15. Consequences Design … limited by technology Learning … scope and time
Debugging … requires too many skills
Testing … across many technologies
Maintainability … across many technologies
Upgrading … version skew
Scaling … layers of latency

16. Real men … learn to live with it?
Complexity
Real men … learn to live with it?

17. The solution…
– Fry –

18. Note: Demonstration of Water language using the SteamXML IDE
Note: Demonstration of Water language using the SteamXML IDE. Examples similar to those in the IDE Initial Instructions which can be found under the Help Menu. See for trial download.

19. USAF – Northrop Grumman
Customers
MIT
MITRE
PBS
Pratt & Whitney
USAF – Northrop Grumman
others…

20. Complexity
Water
Incremental Adoption

21. Simplicity Consistent & Comprehensive Consistant & Comprehensive
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water
Water

22. Note: The following slides were not presented during the WebSim 2003 presentation.

23. Security Architected in from Water’s foundation
Capability-based security model ala secure operating systems
Clean separation of:
Business Logic
Security Policy

24. New Approach XML as syntax → XML as common language
XML for data (Docs) → XML for data, presentation & logic
Web services bolted-on → Designed for Web services
Wizards and code generation → Direct execution of XML
Technology drives design → Business rqmts. drive design
Complex and special-purpose → Simplification through consistency
Hamstrung by standards → Support legacy standards, but …

25. Steam XML Deploy on standard platform Flexible deployment
Open protocols: HTTP, Java, (SMTP)
Support for standards
Content, logic, and UI
Service-Oriented Software

26. Alternative Software Platform
SteamXML and Water
Alternative Software Platform
Platform
J2EE .NET
Vendor Clear Methods
Sun, BEA, IBM Microsoft
Operating System All
All Windows
Runtime Engine Steam Engine
JVM CLR
Language Water
Syntax ConciseXML
Java C#
C++ syntax C++ syntax
Development Tools Steam IDE
JBuilder, etc. Visual Studio
Database API JDBC/Water
JDBC, SQL/J ADO.NET
CICS API HostBridge
Various Host Integ. Server

27. Clear Methods Advanced XML and Web Service Technology
Complete Platform for Web Services