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Document Name: EDGI Use Case 'Marshal Activities from Service Grid to Desktop Grid' Document ID: doc16022 Description: Main EDGI Use Case : This Use Case presents the processing of an Activity submitted on a Service Grid for execution on a Desktop Grid. The security context is described by the EDGI Use Case 'Security of a Production Service Grid'. IT professionals must already have performed the ‘Prepare Desktop Grid Version of Application’ Use Case for the Application to be executed within the Activity. Version Comment: This document was originally designed using a template adequate for Software Engineering. It is formatted here using the currently OGSA-based official PGI template, which is adequate for dissemination and academic papers about Applications, but inadequate and misleading for software engineering of Grid Middleware. Version Created By: Etienne URBAH - 09/09/2010 10:53 AM EDT	Status: Draft Current Version: 9 Size: 59.5 KB Lock:  Unlocked

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	Active	Version	Version Comment	Review	Created By	Status
		Version 9	This document was originally designed using a template adequate for Software Engineering. It is formatted here using the currently OGSA-based official PGI template, which is adequate for dissemination and academic papers about Applications, but inadequate and misleading for software engineering of Grid Middleware.		Etienne URBAH - 09/09/2010	Draft
		Version 8	Lot of thanks to Ilya SAVERCHENKO for his valuable comments. Service Grids (Federations of managed computing resources) trust Users and push Activities, while Desktop Grids (Loose opportunistic Grids using idle resources) trust Applications and pull Activities. So, there is no interoperability at all. Interoperation can be achieved only by using a Bridge specially designed for this purpose. Detailed description of the Bridge marshaling Activities from Service Grids to Desktop Grids is outside the scope of this Use Case : The User wishing to submit an Activity only needs to know that this Bridge exists, and trust it. Other Actors of this Use Case do not even need to know that this Bridge exists.		Etienne URBAH - 09/01/2010	Draft
		Version 7	Extract 'Prepare Desktop Grid Version of Application' as a prerequisite Use Case, and perform other improvements.	Review In Progress Review Completed - 08/12/2010	Etienne URBAH - 07/16/2010	Review
		Version 6	Provide the postconditions created by the preparatory steps		Etienne URBAH - 07/15/2010	Draft
		Version 5	In the summary, indicate that the Application first has to be chosen.		Etienne URBAH - 07/15/2010	Draft
		Version 4	The goal is to enforce the OO principle of encapsulation as much as possible for the User experience. This still requires administrators to perform a certain amount of preparatory steps, and the User to retrieve specific Credentials.		Etienne URBAH - 07/15/2010	Draft
		Version 3	Improve and reformat using the 'PGI Software Engineering Use Case' template		Etienne URBAH - 07/13/2010	Draft
		Version 2	Add that the System keeps persistent detailed Log and Accounting for the Activity		Etienne URBAH - 07/08/2010	Draft
		Version 1	First draft		Etienne URBAH - 07/07/2010	Draft

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