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Archive for category: TOC Terms and Concepts

41

SDBR (Simplified Drum–Buffer–Rope) and DBR (Drum–Buffer–Rope)

Simplified Drum-Buffer-Rope (SDBR) The name Simplified Drum-Buffer-Rope (SDBR) was given to the TOC solution for managing production environment that does not have a bottleneck or any severe CCR – Capacity Constraint Resource. In SDBR the Drum is given to the market. It is assumed that there is enough capacity to fulfill the market demand in […]

42

SDBR: Simplified Drum–Buffer–Rope

The name Simplified Drum-Buffer-Rope (SDBR) was given to the TOC solution for managing production environment that does not have a bottleneck or any severe CCR – Capacity Constraint Resource. In SDBR the Drum is given to the market. It is assumed that there is enough capacity to fulfill the market demand in full within the […]

44

Logical Diagram U-shape

A concept of organizing the TOC knowledge in a comprehensive logical diagram of TOC entities that participate in the analysis of the current reality and the construction or usage of the solution to create an improved future reality. The U-shape was established to organize, store and easily retrieve the TOC knowledge. The U-shape is used […]

45

Non-CCR

There are 3 categories of resources from the point of view of capacity: Bottleneck CCR – Capacity Constraint Resourse Non-CCR Source: Oded Cohen and Jelena Fedurko, Theory of Constraints Fundamentals, 2012    

46

Bottleneck

There are 3 categories of resources from the point of view of capacity: Bottleneck CCR – Capacity Constraint Resourse Non-CCR Source: Oded Cohen and Jelena Fedurko, Theory of Constraints Fundamentals, 2012    

47

CCR – Capacity Constraint Resource

There are 3 categories of resources from the point of view of capacity: Bottleneck CCR – Capacity Constraint Resourse Non-CCR Source: Oded Cohen and Jelena Fedurko, Theory of Constraints Fundamentals, 2012    

48

Capacity Profile

The available capacity of the machines and resources has a significant impact on the PLT (Production Lead Time) and the ability to complete the work order on time. There are 3 categories of resources from the point of view of capacity: Bottleneck CCR – Capacity Constraint Resourse Non-CCR Source: Oded Cohen and Jelena Fedurko, Theory […]

49

Job Shop

Job-Shop Production can be looked at as a special case of the I-Flow. It is usually a machine shop that is producing parts for assembly as an internal supplier, or as outsourcing services for assembly plants. The parts are produced according to their own routings (process sheets) and they move around from one machine to […]

50

Flow, Production

There are four basic types of work flows, which are referred to as “A”, “V”, “T”, and “I”. Production processes differ by structure and the nature of flow of work-in-process through that structure. The flow of work through production has a direct impact on exploiting the constraint and subordinating non-constraints. This taxonomy is based on […]

51

Production Flow

There are four basic types of work flows, which are referred to as “A”, “V”, “T”, and “I”. Production processes differ by structure and the nature of flow of work-in-process through that structure. The flow of work through production has a direct impact on exploiting the constraint and subordinating non-constraints. This taxonomy is based on […]

52

I-Flow

A flow that typically begins with very few raw materials that proceed through production resulting in very few finished products. “I” plants are typically dedicated lines. Typically the line produces only a limited number of products, and it works on only one product at a time (flow lines). Examples: Food and Chemical industries, Sheet-metal fabrication, […]

53

T-Flow

A flow that reflects a limited number of components that can be assembled in a wide variety of ways to create a very large number of finished products – far more than the number of original components. The ending part of the process resembles “V” flow, the front part of it may resemble either “A” […]

54

V-Flow

A flow that typically begins with very few raw materials, sometimes even one. The flow of materials diverges as it proceeds through production, resulting in many more different kinds of finished products. Examples: Basic industries like steel, Chemical processing, Paper production, Textile, Plastics, Wood products, etc.   Source: Oded Cohen and Jelena Fedurko, Theory of […]

55

A-Flow

A flow that typically begins with a larger number of raw materials that are combined as they proceed through production, ending in fewer number of finished products. Most “A” Flows are typically assembly operations. Examples: Specialized equipment manufacturers, airplanes, large generators/ motors, consumer electronics, etc.   Source: Oded Cohen and Jelena Fedurko, Theory of Constraints […]

56

Market Segmentation [the TOC way]

The market is segmented according to problems and needs of certain groups of clients. The more ‘painful’ the problem and stronger the need, the higher is clients’ perception of the value of the offer that removes the problem and meets the need. The job of Marketing is to raise the perception of the value by […]

57

Production Flows, Types

Production processes differ by structure and the nature of flow of work-in-process through that structure. There are four basic types of work flows, which are referred to as “A”, “V”, “T”, and “I”. This taxonomy is based on the graphical representation of their respective flows. The flow of work through production has a direct impact […]

58

Types of Production Flows

There are four basic types of work flows, which are referred to as A, V, T, and I. Production processes differ by structure and the nature of flow of work-in-process through that structure. The flow of work through production has a direct impact on exploiting the constraint and subordinating non-constraints. This taxonomy is based on […]

59

DBR: Drum-Buffer-Rope

The name Drum-Buffer-Rope (DBR) was given to the TOC solution for managing production environment that has a bottleneck or a severe CCR – Capacity Constraint Resource). The name was given in the 1980s for describing scheduling the production shop floor as per the OPT – Optimized Production Technology software. The concepts of DBR were first […]

60

MTA – Make-to-Availability

MTA – make-to-availability is to produce to replenish previously calculated and monitored buffers. This is a TOC solution to handle certain types of MTS.   Source: Oded Cohen and Jelena Fedurko, Theory of Constraints Fundamentals, 2012