2nd Workshop on Quality of Service in Distributed Object Systems

However, distributed systems are exposed to system issues, like dynamic performance changes or partial errors, that prevent a complete distribution transparency. Quality of Service (QoS) management addresses these issues. The goal is to add QoS management to the interactions between clients and services.

Support for QoS management in distributed object systems is a hot topic of current research which poses a number of open questions: How is QoS integrated with the object model that emphasizes encapsulation and information hiding? Can one build generic support frameworks for multiple QoS categories, in contrast to specialized, single category systems, such as TAO, Electra, Eternal, DOORS among others. Can QoS be viewed as an aspect in the sense of Aspect Oriented Programming (AOP) or are other classifications more appropriate?

Based on nowadays object-oriented middleware platforms component based systems emerge. The necessity for QoS provision upholds for components as well. The integration of QoS specifications in component models as well as the mapping to underlying QoS provision of object systems is a challenge of the near future.

The proposed ECOOP-workshop will discuss the open questions and will summarize the state of the art in the field. It is expected that the workshop will stimulate discussions about how next generation QoS management facilities can be built into object infrastructures. We expect the workshop to attract researchers from several groups which have working prototypes for this infrastructure. Reports on prototype systems are welcome as well as theoretical aspects, modeling techniques, and application scenarios.

Call For Papers (Due April 17, 2001)

Topics include, but are not restricted to

• Modeling QoS: suitability of object oriented modeling techniques, influences of QoS provision on the object model, e.g. type systems
• Structure and implementation issues: AOP, open implementations or design patterns, contract aware components
• Scope of QoS-integration: generic integration, multi-category support, impact on architecture and underlying object-model
• Management integration of QoS management and network and application management
• Experiences of QoS integration in OO-Middleware platforms
• Specialized QoS platforms vs. extending existing platforms
• Bind-time QoS integration: Naming, Trading, and Negotiation of QoS in open distributed systems
• Accounting and Pricing of QoS

Submission Process