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A44: Schedule Jobs
Define the detailed production schedule: which workstations will perform which tasks on which part lots
when. This activity uses the
when. This activity uses the
scheduling package provided by the manufacturing engineers to define the
sequence of workstation types required for a Part lot, the task to be performed at each station (defined in
detail by the operations sheet) and the materials and time required to perform the task at each workstation.
According to projected resource availability, the tasks are assigned to specific workstations at specific
times. This implies estimating or scheduling the materials handling operations needed to deliver the tool-
ing, materials and in-process workpieces to the assigned workstation by the time specified.
detail by the operations sheet) and the materials and time required to perform the task at each workstation.
According to projected resource availability, the tasks are assigned to specific workstations at specific
times. This implies estimating or scheduling the materials handling operations needed to deliver the tool-
ing, materials and in-process workpieces to the assigned workstation by the time specified.
In some cases, a workcell comprising multiple resources which can simultaneously perform several inde-
pendent tasks is scheduled according to its capacity by the facility scheduler and then a refined scheduling
process occurs within the workcell itself. The facility and workcell scheduling may occur simultaneously
(with interactions) or consecutively.
pendent tasks is scheduled according to its capacity by the facility scheduler and then a refined scheduling
process occurs within the workcell itself. The facility and workcell scheduling may occur simultaneously
(with interactions) or consecutively.
A441: Generate Job Schedule
Using the current job schedule, maintenance and employee schedules, the scheduling package for
the job (the routing plan and per step resource requirements), and the availability of the required
materials and tooling, insert the newly released jobs into the existing detailed production schedule.
Assign the planned steps to specific major resource stations at specific times, and generate the
the job (the routing plan and per step resource requirements), and the availability of the required
materials and tooling, insert the newly released jobs into the existing detailed production schedule.
Assign the planned steps to specific major resource stations at specific times, and generate the
job
schedule that defines the scheduled itinerary for each Part batch.
This activity may be performed incrementally, or a queue of waiting jobs may be developed and the
scheduling of all waiting jobs for a particular time period may be undertaken at one time.
scheduling of all waiting jobs for a particular time period may be undertaken at one time.
A442: Generate Operations Schedules
For those workstations/cells which comprise multiple equipment units capable of performing
simultaneous tasks, schedule the operations within the job steps assigned to the cell, interleaving
steps from separate jobs and performing them in parallel where possible, to optimize equipment
utilization and meet the step completion times on the Job schedules. Generate the corresponding
schedules for assignment of the operations to the subsystems of the workcell.
simultaneous tasks, schedule the operations within the job steps assigned to the cell, interleaving
steps from separate jobs and performing them in parallel where possible, to optimize equipment
utilization and meet the step completion times on the Job schedules. Generate the corresponding
schedules for assignment of the operations to the subsystems of the workcell.
This activity is often performed dynamically in the workcell. The workcell scheduling process is
usually much simpler than the facility scheduling process, especially when the workcell has unique
resources or when the multiple resources are essentially equivalent machines with an internal
materials handling system.
usually much simpler than the facility scheduling process, especially when the workcell has unique
resources or when the multiple resources are essentially equivalent machines with an internal
materials handling system.
A443: Generate Delivery Schedules
Using the routing sheets, and schedules for tooling, components and other materials from the job
schedule, generate pickup and delivery schedules for all tools, fixtures, raw/in-process/finished
materials, and other components specified in the Bill-of-materials so that they are present when and
where they are needed. (In many cases, these schedules are developed dynamically, using
schedule, generate pickup and delivery schedules for all tools, fixtures, raw/in-process/finished
materials, and other components specified in the Bill-of-materials so that they are present when and
where they are needed. (In many cases, these schedules are developed dynamically, using
dispatch
rules to prioritize and respond to delivery requests as they are posted.)
A444: Track Jobs
For each job on the floor, track its progress including where it is physically, the current step in the
process routing, and the expectation of completion on schedule. Problems require the job routing
process routing, and the expectation of completion on schedule. Problems require the job routing