Method and system for collecting via a MES system time-stamps of working-statuses

A system for collecting via a manufacturing execution system (MES) time-stamps of working statuses of machines and operators for a calculation of a time-dependant component of overall labor effectiveness (OLE) and overall equipment effectiveness (OEE) indicators in a manufacturing task, wherein an operator and a machine are assigned to a task, the operator and the machine being hereinafter called actors, the system comprising:

• a) means for assigning an entity to the actor for defining responsibility of data provision, the entity herein-after called a token;
• b) means for defining two meta-statuses for the machine in the task, each of the meta-statuses grouping a set of machine statuses, the meta-statuses including a first meta-status hereinafter called an operating meta-status and a second meta-status hereinafter called a booked meta-status, the two machine meta-status are defined as follows:
• the machine is defined to be in the operating meta-status when the machine is in a status engaged in the task and the machine is able to know and notify its own status;
• the machine is defined to be in the booked meta-status when the machine is in a status engaged in the task and the machine is unable to notify its own status;
• c) means for collecting via the MES system the time stamps of the statuses of the machine and/or of the operator in a given manufacturing task as follows:
• c1) at a start of the given manufacturing task, means for assigning via the MES system the token to the actor;
• c2) while the given manufacturing task is in progress:
• c21) means for collecting, by the MES system, from the actor owning the token, the time stamps of the statuses;
• c22) if a status transition event took place and the status transition event implies also a meta-status transition event:
• means for notifying, by the operator, to the MES system that an event of meta-status transition took place;
• means for assigning, by the MES system, a token ownership to the machine upon determining that the meta-status switched from the booked meta-status to the operating meta-status or, alternatively, means for assigning, by the MES system, the token ownership to the operator upon determining that the meta-status switched from the operating meta-status to the booked meta-status.