Production planning and - control, briefly PPS is a border area between management economics (especially manufacturing economy), mechanical engineering, industrial engineer nature and in particular the economical informatics. It is occupied with the operational, temporal, quantitative and even if necessarily spatial planning, control and control, coherently with it also the administration of all procedures, which are necessary with the production of goods and goods.

The production of films, clay/tone carriers, radio and television broadcasts, as well as planning and control the same, are treated under the topic medium production.

Overview

The PPS divides on into the production planning, which preplans the procedures central until short term, and which production control, which releases and steers the orders on the basis this planning. Both ranges interlink, and are in particular in small to medium sized enterprises usually also summarized in an area of responsibility.

Parts of the PPS are production program planning, stock management, Termin-und capacity planning (time economy), the order release and the order monitoring.

Usually the processes of the PPS are supported by PPS systems. First beginnings of integrated systems were developed at the beginning of the 70's among other things by IBM with COPICS.

Traditional PPS systems are based on a gradual planning concept. The tasks of production planning and - control are divided into sub-problems, which are solved one behind the other. However often are the transitions between the individual points flowing.

The massive spreading of technically complex products and constant of the product life cycles lead for some years to a constantly rising disposal need, these leads rising relevance of disassembly planning and - control (DPS). The DPS is conceived in as far as possible similar to the PPS.

Production planning

Production planning can be divided after good mountain into three subranges:

• Production program planning
• Materials requirements planning
• Production process planning

Production program planning

In production program planning (also primary requirements planning) kind, quantity and manufacturing dates of the finished products (primary requirements) are specified. Definition which products in which quantities in a certain long-range planning period to be produced are.

Quantity planning

On the basis of primary requirements (output) in materials requirements planning it is determined how many quantity units at intermediate products and raw materials are needed for the covering of primary requirements. For this the product components in parts lists or schedules must admit to be. Parts of the secondary (and Tertiary period need) can be present already in the camp. Existing materials do not have to be manufactured or procured either. Tertiary period need is not contained in the parts list, since it concerns auxiliary and fuels. (e.g. oils, cooling lubricants for the machine, fats, cloth etc.) the Tertiary period need is needed in production. The arrangement takes place consumption controlled (stochastically)

Production process planning

This covers those

• Lot size planning
• Run and capacity time limitation
• Sequence planning and fine time limitation

Lot size planning

Lot size planning determines (i.d.R.) with consideration of developing production, storekeeping, preparation and cleaning costs, how many orders of a product can be combined into a lot, so that the sum of the cost factors mentioned above achieves a minimum size.

Date and capacity planning

As soon as admits the quantities which can be produced are, with the scheduling one begins. By means of the run time limitation earliest and latest dates for the execution of individual work procedures are planned. Subsequently, the question must be clarified whether the necessary capacities for the production program are present. This is roughly planned in the capacity time limitation. With capacity bottlenecks individual work procedures must be shifted into other periods. As soon as this happened, roughly scheduled orders can be passed on to the production control.

Sequence planning and fine time limitation

During the detailed planning one specifies, which machines are assigned to certain orders. Short term tasks of the production control are to be seen particularly in connection with short term changes in the order or capacity reality:

• unplanned loss of a machine or a plant and/or a coworker
• unexpected customer orders with high priority.

Since the connections are multidimensional, the tasks of the production control are accomplished increased with appropriate software systems. These do not only permit to implement the tasks and boundary conditions mentioned efficiently and comfortably it make possible besides a high flexibility of the planner and a high transparency over current Belegungs-und date condition in production.

While some systems methods of the Research use operations for the optimization of the results, practice-oriented systems are characterised by heuristic functions with consideration of job-referred priority rules, which correspond to the understanding and the opinion of the production planner to a large extent.

The result are organisation of working of machines plans and operational fund allocations of devices, tools, NCs-Programm and allocations of coworkers.

Production control

Production control is arranging, supervising and protection of the execution of the approved orders. For the range of the manufacturing (and assembly) one speaks also of progressing. After by fine time limitation the organisation of working of machines was specified, the orders are arranged by making available work vouchers for the enterprise. The monitoring takes place via suitable time near acknowledging systems. The protection is the correcting intervention in the case of deviations, like quantity, dates and quality.

Order release

The roughly scheduled orders which are received from production planning are fine-scheduled here. Some concepts to the order release are Kanban or the load-oriented order release (BOA principle)

Order monitoring

A condition of a monitoring of the feedbacks over the current conditions of production are short, a factory data capture. The feedbacks are made either by means of direct inputs at workstations or by factory data capture systems (BDE systems). These acknowledging data are not only for the progressing of importance, but also for gross wages, the inventory updating, running along calculation and recalculation, quality control and the maintenance for maintenance planning.

See also

• Enterprise resource Planning
• Production process
• PPS systems
• COPICS
• Just in time
• APS Advanced Planning and Scheduling
• Supply chain management
• Job planning
• Logistics
• Workflow management

Literature

• Refuge glazier, Werner violonist, Volker Rohde: PPS. Production planning and - control. Bases - concepts - applications. Th. Gabler, Wiesbaden, ISBN 3-409-23906-5
• Z¤pfel: Production economy. Operational production management. Publishing house de Gruyter, Berlin/New York 1982, ISBN 3-11-007450-8

Articles in category "Production planning and - control"

We found here 33 articles.

Related Websites

We found here 5 related websites.

• AS:9. PRODUCTION PLANNING AND CONTROL
  ... August 31, 2001, Copyright, Hugh Jack 1993-2001. AS:9. PRODUCTION PLANNING AND CONTROL. AS:9.1 OVERVIEW · AS:9.2 SCHEDULING · AS:9.3 SHOP FLOOR CONTROL.


• IngentaConnect Publication: Production Planning and Control
  Production Planning and Control. ISSN 0953-7287, Online ISSN: 1366-5871 visit publication homepage · Production Planning and Control logo · Taylor and ...


• IngentaConnect Publication: Production Planning and Control
  Production Planning and Control. ISSN 0953-7287, Online ISSN: 1366-5871 visit publication homepage · Production Planning and Control logo · Taylor and ...


• Taylor & Francis Journals: Welcome
  Published eight times a year, Production Planning & Control is an international journal that brings together research papers on all aspects of production ...


• Taylor & Francis Journals: Welcome
  Published eight times a year, Production Planning & Control is an international journal that brings together research papers on all aspects of production ...