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Future Directions in Middleware Research and Technology

Future Directions in Middleware Research and Technology. Fabio Kon kon@ime.usp.br Department of Computer Science University of São Paulo, Brazil http://www.ime.usp.br/~kon. Main Issues. Component-Based Software Automatic Configuration Adaptive Systems Separation of Concerns / Reflection

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Future Directions in Middleware Research and Technology

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  1. Future Directions in MiddlewareResearch and Technology Fabio Kon kon@ime.usp.br Department of Computer Science University of São Paulo, Brazil http://www.ime.usp.br/~kon

  2. Main Issues • Component-Based Software • Automatic Configuration • Adaptive Systems • Separation of Concerns / Reflection • Ubiquitous Computing • Social Aspects University of Tromsø

  3. Component-Based Software • Development: we need tools for • writing components • assembling components • debugging and testing • Deployment • standard environments • INTEROPERABILITY • Systems • Education But, it’s still our only alternative! University of Tromsø

  4. Automatic Configuration • Past: many users per computer • Present: few computers per user • Future: hundreds (thousands ?) computing devices per user • Solutions: 1. Static configuration from manufacturer 2. Automatic Configuration University of Tromsø

  5. Recent Advances in Automatic Configuration • 2K: some ideas, a nice prototype, many problems. • Debian Linux: limited scope, very robust and extremely useful implementation. • Major problem: how to specify what a component needs (prerequisites). • Prerequisite specification language • Prerequisite generator • (in fact, we need meta-information about components, systems, and environments) University of Tromsø

  6. Future Work in Automatic Configuration • Study prerequisite specification in Enterprise Java Beans, CORBA Component Model, .NET. • Investigate • how to generate them automatically; • how to use them for automatic configuration. University of Tromsø

  7. Adaptive Systems • One size does not fit all. • Environments are becoming more and more dynamic. • So, we need 1. generic model/framework for building adaptive systems; 2. compose repertoire of adaptations when designing new systems. University of Tromsø

  8. Separation of Concerns Functional Aspects vs. Non-Functional Aspects • Traditional approach (e.g., OO) is not enough • Reflection seems to be the most effective and flexible way of doing it. • Aspect-Oriented Programming (AOP) • a promising idea • but still very limited University of Tromsø

  9. Ubiquitous Computing • It will happen • most solutions are still ad hoc • Gaia OS University of Tromsø

  10. But • Why are we doing this? • For whom we are doing this? • Bill Gates and co.? • Multi-billion $ companies? • The 10% of the people who have Internet access? • What about the other 90%? • Open Software! • Free Software! University of Tromsø

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