DEVICE FOR ASSIGNING TASK AND METHOD THEREFOR, AND DISTRIBUTED SYSTEM

PROBLEM TO BE SOLVED: To obtain a task assignment method in which a back track is not required in a contract negotiation process for operating task assignments in a distributed system by confirming the capability of executing of the tasks as a while and operating sub-task assignments. SOLUTION: A specimen inspection automation system is a processing system having three processes of 'centrifugal separation', 'unplugging', and 'analysis'. A computer A receives a contract information message at a time A9, retrieves a task presentation message which has the same contract number as the contract number of the received contact message, checks successful bid sub-task 'unplugging', and checks whether or not the premise sub-task of the successful bid sub-task 'unplugging' is present, by using its own task division knowledge When the premise sub-task is present, a bit message having the premise sub-task 'centrifugal separation' of the successful bid sub-task 'unplugging' and the task ID of the successful bid sub-task 'unplugging' is evaluated, and a contractor is decided by using the bit evaluation.