These context specific top level business objects such as RFP, MSA Contract, PO, and Invoice are loosely coupled and only contain external reference to other objects in the previous process flow. This is because it is possible to create any of these on their own (technically speaking) depending on the Organizations role and/or phase of interaction with other organizations in the Radish network. However, the application process management logic will re-enforce the proper creation order. It is expected that these objects cross system boundaries and also have on-chain representation. These objects are prominent in the User Interface and the end user can interact with them.