A workflow model is described. In one example of the workflow model, a first workflow is associated with a first party, and a first workflow view is used to represent an abstraction of the first workflow. Similarly, a second workflow is associated with a second party, and a second workflow view is used to represent an abstraction of the second workflow. Then, a coalition workflow view referencing the first workflow view and the second workflow view provides a collaborative workflow that specifies tasks that the first party and the second party are required to perform. In this way, multiple parties may easily partner with one another to accomplish a business objective, while maintaining a level of confidentiality of their workflow processes.