Request VM

Compute allocatedresource

Manage VM

Check identity

Release VM

Manage GVE

<<extends>>

<<includes>><<includes>>

<<includes>><<includes>>

<<includes>>

GCS User Info. Service

GVE administrator

Request owned VM

Request new VM

Workflowclient

WorkflowWeb service

receive assign

receive VM Job execution reply

GVE service proxy service

GridSAM service

Virtual machine resources

Access Service

Virtual Machine

Host Resource

Computational Grids

Computer Site

GVE Web Service User Info. Service

User Info.Database

Agent Web Service

Registry ServiceVMM

VM ImageDatabase

RegistryDatabase

GVE Site Service

GVE Agent

clientActive BPEL Engine GVE Proxy service GridSAM

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