This activity aims at identifying constraints between roles. This for instance includes roles that have to be played simultaneously, priorities in their executions, mutual exclusions, preconditions for one role generated by another, and so on. Concurrency constraints are also important because they will guide the definition of role scheduling policies. Detailed constraints between roles must prevent their inopportune concurrent execution and force the correct execution sequence. Roles shall be played simultaneously if and only if they allow an exchange of information between two different organizations. A mean to realize this exchange can be the agent internal context when both roles belong to the same agent. This constitutes an alternative to the use of services and a simplification of information transfer.


Constraints between roles are identified thanks to roles dependencies and associated knowledge described in the previous activity. Role behavior description also defines which information is eventually required by other organizations and it thus allows the identification of couples of roles that have to be played simultaneously.


Contents

Goal

This activity aims at identifying constraints between roles. The objective consists in characterizing roles that have to be played simultaneously, priorities or mutual exclusion between role, preconditions for one role generated by another one, etc. Concurrency constraints are also important because they will drive the definition of role scheduling policies. So constraints between roles that prevent their concurrent execution and force a precise execution sequence have also to be detailed. Roles can be played simultaneously if and only if they allow an exchange of information between two different organizations. A means for realizing this exchange can be using the agent internal context when both the roles belong to the same agent. This constitutes an alternative to the use of services and a simplification of information transfer.


Input

Constraints between roles are identified thanks to roles dependencies and associated knowledge described in the previous activity. Role behavior description also precise which informations are eventually required from other organizations and thus allow the identification of couple of roles that have to be played simultaneously.


Output

Class Diagram, text document reporting constraints between roles.


MAS Meta-Model Elements

Relate(AgentRole, AgentRole)

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