AGC Lean Unit 2
Terms in this set (16)
Batch and queue systems
Systems where work is released on a preset schedule. The need for work downstream and the status of the system are not considered. As a result, the inputs are in the form of batches and are often queued before the production units for processing.
Mechanisms to mitigate the effects of variation in production systems. It is important to use properly sized buffers in critical areas of the production process.
Continuous flow systems
Production systems where a single piece undergoes all production processes sequentially. There is no batching in the process. A 100% continuous flow or single piece flow system is an ideal because it requires zero variation.
A Japanese word that literally means "signboard". Kanban is used as a signal for starting and stopping production processes.
Work in progress= throughput x cycle time. Little's Law is used for estimation and scheduling in construction, along with the calculation of work in progress. This proof was presented by John Little in 1961.
To make ready is to take actions needed to remove constraints from assignments with the view of making them sound.
Schedule produced during the front end planning period and covering the entire project from beginning to end.
The number of similar products produced and sold by an organization. The product mix can vary from one of a kind to large volume organizations. Construction companies produce one of a kind products whereas companies in the automobile industry, for example, produce a large volume of similar products.
An individual or a group of individuals performing a common production task
Systems where work and information is pulled based on need and state of the process.Make ready plans and weekly work plans of the Last Planner System are used.
The amount of time required at a certain production unit before the material or information is moved to the next production unit.
The actual amount of output from the production process in a give amount of time.
Weekly work plan
A list of assignments to be completed in a specific week. The list should be prepared as close to the week in question as possible to have effective commitments.
Work in progress (WIP)
The inventory present at any given time between the starting point and the ending point of the production process. The work that is started but not yet finished.
Transfer of material or information from one production unit to another or within a production unit.
Systems were work is released on a preset schedule. The need for work downstream and the status of the system are not considered. As a result, the inputs are in the form of batches and are often queued before the production units for processing.