Message Checks

PowerDesigner provides default model checks to verify the validity of messages.

Check	Description and Correction
Message without sequence number	A message should have a sequence number. Manual correction: Enter a sequence number on the message Automatic correction: None
Message used by several instance links	A message should not be attached to several instance links. Manual correction: Detach the message from the instance link Automatic correction: None
Message between actors	An actor cannot send a message to another actor in the model. Messages are allowed between two objects, and between objects and actors. Manual correction: Create a message between two objects or between and actor and an object Automatic correction: None