planning in production systems pps systems – production planning and control systems slovak...
TRANSCRIPT
Planning in production systems
PPS systems – production planning and control systems
Slovak University of TechnologyFaculty of Material Science and Technology in Trnava
Production planning and control systems are in literature presented under the name:
Production Planning System (PPS) Production Planning and Control (PPC) Manufacturing Resource Planning (MRP
II) Production Management System (PMS)
Tasks of PPS systems
to secure scheduling of customer’s order by production
to coordinate ordering process by production, in a way to fulfil its realization in optimal relations
PPS structurePPS structure
Production planningdefine assortment and quantity of production
orders, that should be released – place an order into production
to secure their term layout for available production facilities
PPS structurePPS structure
Production controlling connects on tasks of production planningcoordinates reciprocal action for basic
elements of production processcoordinates reciprocal action of main and
helping production processes
Basic structure of PPS system
Data administration common for both areas of PPS collection, processing, administration of all
basic data needed for PPS system basic data:
information about suppliers information about customers information about products and orders bills of materials information about production structure technological process information about production tools
Production program planning
realization and creation of gross production program ( production quantity, amounts and terms)-
activities:demand requestsplanning of customer ordersgross terming of customer orders informative calculation of capacitiesgross calculation of material usage
Planning of quantity arrangements that are needed for security
of material production, in regard of product type, quantity and terms
entrance bases – production documentation, size of reserves
specific activitiesplanning material requestscalculation of reservescalculation amount orderedmaterial ordering
Term and capacity planning
designates capacity demands and time schedule of production, occupied capacities are taking into consideration during calculation
technological processes consist of : time schedule of production orderscalculation of capacitiesharmonization of capacitiesplanning continuity of production
Controlling of production orders
characteristic activities:releasing of orders into productionpreparation of production documentationcontrol of the production safetyshort term schedule of production
Monitoring of production orders
control the making progress of production order
activitiescontrol time keeping of schedule in short
term productioncontrol of quantitycontrol the fulfillment terms of production
orders control of machine capacity usage
Requests on PPS
ability to respond quickly on customer’s demands from the view of size, terms and properties of products
ability to introduce new products into going production
keeping beneficial production costs accurate forecast of material demands
Requests on PPS
possibility of early recognition and mastering the capacity differences
unloading from routine activities support the production control, which is
oriented on material flow stabilization of production program
Choice and application of PPS application of PPS system into company =
high costs PPS system needs to be adapted on real
company conditions, that are the most modified by:company profileactual company’s organizational structureactual structure of production progress of material flowsexistent structure of system collecting and
data processing