In addition, to ensure that the behaviour of the agents to follow the requirements of the owner must provide the agent contract. (Contract) in the authorization and permissions
Moreover, to ensure that the behavior of the agents do not meet the requirements of the owner must provide the agency agreement (contract) to define the powers and rights.
In addition, to ensure that the behavior of the agent according to the needs of the owner shall be representative contract (contract) in determining the power and rights.