Dimensioning – application and procedure

Dimensioning is an essential part of factory planning and is used to determine the capacity of operating resources and personnel as well as the space requirements. The capacity requirements are based on the production program.

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Static and dynamic dimensioning

A distinction is made between static and dynamic dimensioning. Static dimensioning is a simpler consideration of the average demand in a time period (e.g. one year). Dynamic dimensioning, on the other hand, takes fluctuating demand quantities into account. In practice, static dimensioning is often sufficient because of the high effort required for dynamic dimensioning.

Dimensioning of the operating resources

In general, machines, equipment, devices, tools, etc. are referred to as operating resources. When dimensioning operating resources, we start with production equipment, since the characteristics and extent of all other resources (space and personnel) are derived from this.

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Personnel requirements planning

Personnel requirements planning is an essential component in the factory planning process, since personnel costs often take over a dominant share in the cost structures. In direct areas, personnel requirements can thus be calculated from the product of annual quantity and the time required per work unit. Determining personnel requirements, e.g. for warehousing, picking and logistics activities, is more difficult. Up to now, this has mainly required the preliminary determination of all corresponding workplace-related activities and their time requirements. However, the key figure method can also be used here, for example, to put the work processes of the equipment to be operated (e.g. stacker cranes and order pickers, scheduling software, control station) in relation to the number of units produced. The determination of personnel requirements for activities with a high administrative share is much more extensive. In the case of existing processes, it has been necessary to resort to work analyses, on-site time measurements or the use of MTM methods in order to determine working time requirements.

Area planning

After the planning of the operating resources and the personnel, the area planning takes place. The predetermination of the space required for a factory planning object represents a core task within factory planning due to its significance with regard to land or building structures and the resulting investment requirements.

Read more in our book Dimensioning Indirect Areas Based on Fuzzy Data or contact us, we are happy to support you methodically in the efficient dimensioning of your resources.

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