DocumentCode :
2286663
Title :
A negotiation model for dynamic composition of distributed applications
Author :
Ben-Shaul, Israel ; Gidron, Yoad ; Holder, Ophir
Author_Institution :
Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel
fYear :
1998
fDate :
25-28 Aug 1998
Firstpage :
820
Lastpage :
825
Abstract :
Dynamic composition of distributed applications from autonomous components is becoming attractive, and requires new composition models and infrastructures. In this paper, we address the problem of deploying components to remote sites as part of the dynamic composition process. In particular, we discuss the specification and allocation of resources to remotely deployed components. Satisfying the mutual needs of an autonomous component and the environment to which it was deployed suggests a negotiation-based approach. We present a model that allows programmers to specify the negotiation strategy as part of the component and a two-phase deployment protocol. The first phase involves negotiation between lightweight objects and results in either a contract or a failure. In the former case, the component can tailor itself according to the contract before the actual deployment, and in the latter case unnecessary deployment is avoided. The model has been implemented in Java as part of Hadas, an environment for the dynamic composition of distributed applications
Keywords :
computer aided software engineering; distributed processing; protocols; subroutines; Hadas environment; Java; autonomous components; component customization; contract; distributed applications; dynamic composition; failure; lightweight objects; negotiation strategy; remote sites; remotely deployed components; resource allocation; resource specification; two-phase deployment protocol; Contracts; Java; Programming profession; Protocols; Resource management;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Database and Expert Systems Applications, 1998. Proceedings. Ninth International Workshop on
Conference_Location :
Vienna
Print_ISBN :
0-8186-8353-8
Type :
conf
DOI :
10.1109/DEXA.1998.707500
Filename :
707500
Link To Document :
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