Methods, Systems, and Computer Program Products for Constraining a Data Exchange Requested in a Communication

A method for constraining a data exchange requested in a communication, the method comprising:

• receiving, via a network by a first communications agent representing a first user and operating in a first execution environment, a first message including a constraint notification identifying a construction constraint from a second communications agent representing a second user and operating in a second execution environment, wherein the first message is received in a communication according to a communications protocol via a network;
• generating, by the first communications agent and based on the construction constraint, a data object request to identify a data object in a second data store of the second execution environment;
• sending, via the network to the second communications agent, a second message including the data object request;
• and
• receiving, by the first communications agent in response to sending the data object request, a third message that includes a data object response, constrained based on the construction constraint, that identifies the data object;
• wherein performing at least one of the preceding actions comprising the method includes execution of an instruction by a processor.

A non-volatile computer readable medium embodying a computer program, executable by a machine, for constraining a data exchange requested in a communication, the computer program comprising executable instructions for:

• receiving, by a second communications agent that represents a second user and that operates in a second execution environment, constraint information identifying a construction constraint;
• sending, via a network according to a first communication protocol by the second communications agent to a first communications agent that operates in a first execution environment and that represents a first user, a first message including a constraint notification identifying the construction constraint;
• receiving, via the network by the second communications agent, a second message from the first communications agent;
• detecting, in the first message by the second communications agent, a data object request constrained based on the construction constraint;
• and
• initiating an operation to locate a data object, that meets the construction constraint, in a data store in the second execution environment based on the data object request.