1. Distributed Communication Kick-Off Presentation by António Rito Silva at EDO 2000 November 2-3, 2000 Davis, California

2. Developoment Process Driven by distributed communication Sockets Perfomance issues,... Distributed communication is transparent IDL RM-ODP

3. Transparency Qualities Promises Incremental development - distributed code can be developed independently from functionality Evolution - objects can change their non-functional properties on the fly But What about distributed communication models

4. Model Transparency... Non-functional requirements become functional requirements! Interaction model can not be hidden Quality of service can not be hidden Different applications require different distributed communication models...lets return sockets-based development...

5. ... Towards a Solution Code transparency Avoid code tangling Model visibility Allow different distributed communication models, besides transparency

6. Separation of Concerns Distributed communication abstraction Abstraction composition Integration mechanism (implementation) With functionality With other concerns solutions

7. Integration Mechanisms Compile time Design patterns Aspect-oriented programming UML Profiles Run time Reflection Filters

8. Distributed Communication Abstraction Modularization between the different concerns Reusability of the concern abstraction in concrete applications Expressive power to support the different distributed architectures,...

9. Expressive Power Communication Protocol multicast vs. unicast Quality of Service reliable vs. unreliable Distributed Architecture client-server peer-to-peer hybrid

10. Evaluation Framework A lot of confusion between integration mechanisms and distributed communication abstractions A framework that separate both issues in order to evaluate the different approaches is REQUIRED

11. Existing Technology EJB, CORBA, COM,... Services on top of distributed communication Component-based development, but: what about concerns abstractions what about compositions of non- orthogonal concerns

12. Discussion on... Integration mechanisms Distributed communication abstractions Composition with other concerns Development process Distributed communication models Applications requirements