A process model and system for supporting collaborative work

As most real work is collaborative in nature, process model developers have to model collaborative situations. This paper defines generic collaborative patterns, ie, pragmatic and abstract building blocks for modelling recurrent situations. The first part specifies the graphical notation for the solution description. The second part gives some typical patterns for the collaborative production of a single document in isolation and for the synchronization of two dependent documents. The conclusion emphasizes some implications for process-centred systems.