Production Management - Introduction_1
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Transcript of Production Management - Introduction_1
PRODUCTION MANAGEMENT - INTRODUCTION
Joanna Oleśków-Szłapka
Institute of Management EngineeringPoznan University of Technology
October 8th, 2009
OBJECTIVES among others:.. Understand basic production management
and its function Obtain knowledge of basic methodology in
order to apply these in a working field and find a way to improve productivity and eliminate waste
Understand higher level of production management
Gain ability of forecasting demand, planning a production schedule and fulfilling capacity of production and reform of an organization
CONTENTS
1. Production management – background2. Decision- making process of production3. Improvement of productivity4. Forecasting demand of production 5. Design of goods and services6. Process strategy7. Material requirements planning and capacity
requirements planning 8. Inventory control9. Specialization and outsourcing10. Location and layout strategies11. Planning and scheduling production –
information systems12. Basic case studies and exercices
BOOKS
T. Hill, Production/Operations Management, Prentice Hall 1991
Heizer, J. Render, B. Operations Management, Prentice Hall 2005
S.N. Chapman, The fundamentals of production planning and control; Prentice Hall 2006
K.N. McKay, V.C.S. Wiers, Practical production control. A survival guide for planners and schedulers,, APICS, J.Ross Publishing 2004
And others from the field of production/operations management…
PRODUCTION MANAGEMENT
30 h Lectures, Exercices and cases solved by
yourself An oral exam – December 10th,
2009
PRODUCTION MANAGEMENT – THEORETICAL BACKGROUND
1. DEFINITION2. OBJECTIVES3. FUNCTIONS4. PRODUCT DESIGN, TYPES OF PRODUCTION
SYSTEMS5. PLANNING AND CONTROL PRODUCTION
MANAGEMENT ETC.
INTRODUCTION TO PRODUCTION MANAGEMENT
Planning and control of production of goods and services are essential for efficient and effective operations.
It is definitely not enough (though necessary) for every worker to “know” his/her job. There has to be a planned, coordinated and monitored system of approach to the operations and productions of the organization. This This is the reason for production management.is the reason for production management.
DEFINITIONS - PRODUCTION MANAGEMENT
(i) In short production management is the Art of
Managing the Production. It basically concerns
itself with the conversion of inputs into outputs.
(ii) Production management can be also defined as “The
job of coordinating and controlling all the
activities required in making a product”.This
concept is not restricted to only industrial or
manufacturing sectors; it is also applicable to service
industries.
(iii) The performance of management activities with
regards to selecting, designing, operating, controlling
and updating production system
PRODUCTION MANAGEMENT – OPERATIONS MANAGEMENT
Production management and operations management are treated as being synonymous.
Operations management is the conversion of inputs into outputs, using physical resources, so as to provide the desired utility/utilities of form, place, possession or state or a combination there –
of to the customer while meeting the other organizational objectives of effectiveness,
efficiency and adaptability.
PRODUCTION MANAGEMENT – OPERATIONS MANAGEMENT
INPUTSPeopleEnergymaterialsinformationfixed assets
Transformation process
Method(s) of conversion. Support function to provide controls and feedback and to
improve the process
OUTPUTS
Goods services
Figure 1. The operations function, T. Hill, Production/Operations Management. Text and cases, p.57
PRODUCTION MANAGEMENT FOCUSES on…
Production management focuses on two significant functions: responsibilities and planning and control.The production management’s responsibility sees to the following areas; men (labor), machines, methods, materials and money.
The production management’s responsibility
Men: this refers to the labor force. This responsibility is often referred to as people people management.management. This is to build a workforce that can easily adapt to new equipment and schedules in production.
Machines and Method: This involves choosing the machine and technology used in production of goods and services. The production manager must also choose the methods in using these machines to achieve efficiency. He/She must decide on the technology that best suits the operation.
Material: Material here includes both raw raw materials for production and the materials for production and the information needed in productioninformation needed in production. The production manager must manage the flow processes; that is, the smoothness of resource and data movement.
Money: This deals with the financial matters involved in the day to day running of production. The production manager manages the inventory and production level and quantity with the returns on investment, on focus.
The production management’s responsibility
CRITERIA OF PERFORMANCE
3 aims of performance of the Production and Operations Management Systems:
• Effectiveness – productive utilization of resources
• Customer satisfaction• Efficiency
According to William K. Holstein[1], production planning and controlling functions can summarily put thus:
PRODUCTION – CONTROL SUMMARY
PROCESSES INVENTORY INSPECTION COSTS
OBSERVATION measuring rate of output, recording idle time or downtime
recording stock levels
inspecting materials and parts
collecting cost data
ANALYSIS comparing progress with the plan
analyzing demand for stocks in different uses and at different times
estimating process capabilities
computing costs in relation to estimates
CORRECTIVE ACTION
expediting Issuing production and procurement orders
Initiating full inspection; adjusting processes
adjusting selling price of products
EVALUATION estimating production capacities and maintenance
schedules
drawing up replacement policies and inventory systems
reassessing specifications; improving processes and procedures
evaluating production economics; improving data
PRODUCTION FUNCTION
PRACTICES IN FIELD OF PRODUCTION MANAGEMENT
There have been several practices developed by many experts in the field of production management and aimed at ensuring efficient and effective production – lean production, agile production etc. –
PRODUCT DESIGN
Product design is a strategic decision as the image and profit earning capacity of a small firm depends largely on product design.
Once the product to be produced is decided by the entrepreneur the next step is to prepare its design.
The form designing includes decisions regarding its shape, size, color and appearance of the product. The functional design involves the working conditions of the product
PRODUCT DESIGN
Various factors are to be considered before designing product. These factors are listed below: -
(a) Standardization(b) Reliability(c) Maintainability(d) Servicing(e) Reproducibility(f) Sustainability(g) Product simplification(h) Quality Commensuration with cost(i) Product value(j) Consumer quality(k) Needs and tastes of consumers.
PRODUCT DESIGN
The product design should be dictated by the market demand. It is an important decision and therefore the entrepreneur should pay due effort, time, energy and attention in order to get the best results.
DESIGN OF PRODUCTION SYSTEM
An appropriate designing of production system ensures the coordination of various production operations. There is no single pattern of production system which is universally applicable to all types of production system varies from one enterprise to another.
TYPES OF PRODUCTION SYSTEMBroadly one can think of three types of production systems which are mentioned here under:
(a) Continuous production - It is also known as mass flow production or assembly line production. The system is suitable in plants involving large volume and small variety of output e.g. oil refineries reform cement manufacturing etc.
(b) Job or unit production - The system requires comparatively smaller investment in machines and equipment. It is flexible and can be adapted to changes in product design and order size without much inconvenience. This system is most suitable where heterogeneous products are produced against specific orders.
(c) Intermittent production - Under this system the goods are produced partly for inventory and partly for customer's orders. E.g. components are made for inventory but they are combined differently for different customers. . Automobile plants, printing presses, electrical goods plant are examples of this type of manufacturing.
TYPES OF PRODUCTION SYSTEMS
Three types of production system can be identified certain features of which influence the actions of production managers:
small batch and unit production Large batch and mass
production Continuous process production
TYPES OF PRODUCTION SYSTEMS
Three main types of production:
A) JOB PRODUCTION• The job produced only once,• The job produced at irregular intervals• The jopb produced periodically at regular intervals.
B) BATCH PRODUCTION• A batch produced only once• A batch produced at irregular intervals as per Customer or when
the need arises• A batch produced periodically at known intervals
C) CONTINUOUS PRODUCTION.• Mass production• Flow production
PRODUCTION AND OPERATIONS SYSTEM
Examples?Examples?
FACTORS AFFECTING THE CHOICE OFMANUFACTURING PROCESS
1. Effect of volume/variety2. Capacity of the plant3. Lead time4. Flexibility and efficiency
Following factors need to be considered before making a choice of manufacturing process:
PLANNING AND CONTROL IN PRODUCTION MANAGEMENT
Production management can also be viewed from the planning and control perspective.
The production manager must plan and control the process of production in a cost effective way at the same time meeting all quality specifications.
Things that are being controlled in production management are the inventories and labor cost.
INVENTORY CONTROL
Inventories include the raw materials needed in production, component parts, finished goods, packing and packaging materials, and general supplies. Computer programs and software have been further developed to increase efficiency and effectiveness in inventory controlling.
LABOR COST CONTROL
This involves measuring the amount and type of work required to produce and design an efficient method for accomplishing the set production objective.
The measurement here also includes time required to produce a particular production task.
PRODUCTION PLANING AND CONTROL PROCESS
ROUTING
Routing procedure involves following different activities.
(1) An analysis of the article to determine what to make and what to buy.
(2) To determine the quality and type of material(3) Determining the manufacturing operations and
their sequence.(4) A determination of lot sizes(5) Determination of scrap factors(6) An analysis of cost of the article(7) Organization of production control forms.
SCHEDULING
The pattern of scheduling differs from one job to another which is explained as below:
Production scheduleMaster scheduleManufacturing scheduleScheduling of job order manufacturing
LOADING
Loading determines who will do the work as routing determines where and scheduling determines when it shall be done. Gantt Charts are most commonly used in small industries in order to determine the existing load and also to foresee how fast a job can be done.
PRODUCTION CONTROL
Production control is the process of: planning production in advance of
operations, establishing the extract route of each
individual item part or assembly, setting, starting and finishing for each
important item, assembly or the finishing production and
releasing the necessary orders as well as initiating the necessary follow-up to have the smooth function of the enterprise.
DISPATCHING
Dispatching involves issue of production orders for starting the operations.
Necessary authority and conformation is given for:1. Movement of materials to different workstations.2. Movement of tools and fixtures necessary for each
operation.3. Beginning of work on each operation.4. Recording of time and cost involved in each
operation.5. Movement of work from one operation to another
in accordance with the route sheet.6. Inspecting or supervision of work
FOLLOW UP
Every production programme involves determination of the progress of work, removing bottlenecks in the flow of work and ensuring that the productive operations are taking place in accordance with the plans.
All problems or deviations are nvestigated and remedial measurer are undertaken to ensure the completion of work by the planned date.
INSPECTION
This is mainly to ensure the quality of goods. It can be required as effective agency of production control.
CORRECTIVE MEASURES
Corrective action may involve any of those activities of:
adjusting the route, rescheduling of work changing the workloads, repairs and maintenance of machinery or
equipment, control over inventories of the cause of deviation
is the poor performance of the employees. Certain personnel decisions like training, transfer,
demotion etc. may have to be taken.
Thank you for your attention