1. Adaptive Software Kevin Cella Graduate Seminar 02/04/2005

2. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

3. Adaptive Computing Hardware  Fault Tolerant  CPU Architectures EDGE  Digital Filter  Robot Controller Software  Engineering  Agents  Adaptive Programming  Networking

4. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

5. History 1982 Hades 1982-1985 Zeus 1985-presentDemeter 1990 Traversal Strategy 1995Separation of Concerns 1996Xerox PARC - AOP

6. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

7. A Closer Look What is Adaptive Programming? An extension of OOP using graph theory and formal languages to further abstract collaborating classes and generate a family of programs from a common architectural graph.

8. Class Graph

9. Procedure Traversal Strategy => Propagation Pattern => Wrapper Definition => Generated Code

10. Result

11. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

12. Formal Definition Class Graph  Context-Free Grammar Traversal Strategies  Regular Expressions  NDFA Intersections Graph Theory  Construction edge  Subclass edges

13. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

14. Law of Demeter "Only talk to your immediate friends" The methods of a class should not depend in any way on the structure of any class, except the immediate top-level structure of their own class

15. Demeter Method Class Dictionary Propagation Pattern Traversal Strategy Demeter Grammar  Delayed Binding  Wrapper  Code Generation

16. AOP Join Points Pointcuts Advice Aspects Compiler - AspectJ  Weaving  Byte Code Manipulation  Observer Pattern  Java Language Extension

17. Alternate Designs Object-Oriented Databases XML/Java Data Binding Adaptable Plug and Play Components  Aspectual Collaborations  Aspectual Components DJ Java Library

18. Standardization – Design Patterns AP Patterns  Inventor’s Paradox  Structure-Shy Traversal  Structure-Shy Object  Context  Class Graph

19. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

20. Advantages Maintenance Simplified Implementation Understandability Readability Reusability Code Reduction

21. Disadvantages Security Weaving Language Extension  Grammar  Integrate into Current OO-Languages

22. Agenda Adaptive Computing History Adaptive Software  Examples Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

23. Applications Hewlett-Packard  Planetary Computing  SmartFrog IBM  eLiza Testing EJB.NET

24. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!

25. Reactions Lack of Standards Code Weaving Education Security Cost Analysis

26. Agenda Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP  Alternate Designs Advantages/Disadvantages Applications  Coding Examples Thesis Wrap it up!

27. Looking Ahead AI Naturalistic Programming Tools packaged with SDK

28. Questions?

29. Discussion Topics Practicality  Large vs. Small Scale Applications New Tools Standards Education