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Adaptive Software

Adaptive Software. Kevin Cella Graduate Seminar 02/04/2005. Agenda. Adaptive Computing History Adaptive Software Formal Definition DemeterJ / AOP Alternate Designs Advantages/Disadvantages Applications Reactions Wrap it up!. Adaptive Computing. Hardware Fault Tolerant

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Adaptive Software

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  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-present Demeter • 1990 Traversal Strategy • 1995 Separation of Concerns • 1996 Xerox 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

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