System for structured communication between parties

A system for structured communication between specified parties, comprising:

• a. a remotely-accessible controller configured to present a communication user interface to one or more of the parties;
• b. a state information repository comprising state information to be updated throughout a transaction, wherein changes in the state information are constrained at least in part based upon a transaction type determined from a predetermined set of transaction types;
• wherein the controller is configured to initiate an electronically mediated interaction pertinent to a communication transaction between the parties, attempt to establish an initial context for the transaction based upon previous electronically-mediated interactions that include the initiating party, establish a defined role for each of the parties, each role defining bounds upon the activity of each party within the transaction, and, upon advancement of the state information from a first state to a second state, engage associated parties through the user interface.