What is the difference between agent and broker? _ Design mode

Agents you should have seen in computer science, such as intelligent agents, multi-agent environments, and so on. All two have the meaning of "replace the principal side operation", but there are some differences.
Agent Although agents, but have their own environment to adapt to the way, the principal only issued instructions, how to complete the instructions by the agent to determine their own, so the agent is also known as Agent identity of the main body; broker more passive points, more inclined to "broker", decision-making is mainly commissioned to complete, You can make a lot of decisions by delegating authority. Simply put, broker is more like a hand, accepting instructions from the brain (client, client) to do very specific things (overweight, closed positions, etc.), and the agent has its own brain, in the client will frame, according to the environment to make flexible decisions. In the case of computer language, broker is the general computer language of C and Java, and the agent is more akin to what sql--tells him to do without telling him what to do.
Generally in the AI field, said the agent, is the intelligent agent, not intelligent broker. This shows

Insurance industry common saying: Both are insurance salesman, but agent on behalf of insurance company's interests, to FYP (first year scale premium) to maximize as the goal; Broker represents the interests of the client (the insured, the insured), usually with the benefit maximization or the hedging effect best as the goal.