1. A named collaborative space configured for workflow, the named collaborative space comprising: a workflow engine executing in memory by a processor of a computer; a workflow processed in the workflow engine, the workflow describing different arrangements corresponding to the different steps of the workflow, each of the arrangements specifying a composition of collaborators in a membership, roles defined for said collaborators, and tools and resources configured for accessibility by said collaborators according to corresponding ones of said roles; a default arrangement for the workflow selected from amongst the different arrangements, said default arrangement specifying a composition of collaborators in a membership, roles defined for said collaborators, and tools and resources configured for accessibility by said collaborators according to corresponding ones of said roles; and, at least one different arrangement amongst the different arrangements defined for a different step in the workflow and responsive to a change in state for the named collaborative space, said at least one different arrangement specifying a different composition of said collaborators, roles, tools and resources.
1. A named collaborative space configured for workflow, the named collaborative space comprising: a workflow engine executing in memory by a processor of a computer; a workflow processed in the workflow engine, the workflow describing different arrangements corresponding to the different steps of the workflow, each of the arrangements specifying a composition of collaborators in a membership, roles defined for said collaborators, and tools and resources configured for accessibility by said collaborators according to corresponding ones of said roles; a default arrangement for the workflow selected from amongst the different arrangements, said default arrangement specifying a composition of collaborators in a membership, roles defined for said collaborators, and tools and resources configured for accessibility by said collaborators according to corresponding ones of said roles; and, at least one different arrangement amongst the different arrangements defined for a different step in the workflow and responsive to a change in state for the named collaborative space, said at least one different arrangement specifying a different composition of said collaborators, roles, tools and resources. 2. The named collaborative space of claim 1 , wherein said default arrangement and said at least one different arrangement are configured to be rendered through a portal view.