The second contribution offered by DEMO to the design of an IS, is a full account of the possible
actions to be supported. The operating principle of a BS is the ability of human beings (in their role of
social individual) to enter into and comply with commitments and agreements. This was called
coordination in section 2. The standard pattern of C-acts and resulting C-facts of a transaction is shown in
Figure 11. An open or white box represents a C-act type and an open or white disk represents a C-fact type.
A gray box represents a P-act type and a gray diamond a P-fact type.