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OPERATIONS MANAGEMENT
AND PRODUCTIVITY $ Mo Money Mo Problems $
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OUTLINE What is Operations Management?
The heritage of Operations Management Why study OM? What Operations Managers do? Organizing to produce goods and services Where are the OM jobs? Exciting new trends in Operations Management Operations in the service sector The Productivity challenge
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LEARNING OBJECTIVES When you complete this chapter, you should be able to: Identify or Define: Production and productivity Operations Management (OM) What operations managers do Services Describe or Explain: A brief history of operations management The future of the discipline Measuring productivity
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WHAT IS OPERATIONS MANAGEMENT?
Operations Management is the set of activities that creates goods and services by transforming inputs into outputs Operations Management focuses on carefully managing the processes to produce and distribute products and services. AND PRODUCTION Production is the creation of goods and services
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SIGNIFICANT EVENTS IN OPERATIONS MANAGEMENT
Division of labor (Smith, 1776) Standardized parts (Whitney, 1800) Scientific management (Taylor, 1881) Coordinated assembly line (Ford 1913) Gantt charts (Gantt, 1916) Motion study (the Gilbreths, 1922) Quality control (Shewhart, 1924)
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SCIENTISTS Adam Smith He suggested that the huge increases in productivity obtainable from technology or technological progress are possible because human and physical capital are matched, usually in an organisation.
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Eli Whitney Whitney's defenders have claimed that he invented the American system of manufacturing-- the combination of power machinery, interchangeable parts, and division of labor that would underlie the nation's subsequent industrial revolution.
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Frederick Winslow Taylor
He developed the theory of management that analyzes and synthesizes processes, improving labor productivity.
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Henry Ford He said that an assembly line is a manufacturing process in which interchangeable parts are added to a product in a sequential manner using optimally planned logistics to create a finished product much faster than with handcrafting-type methods.
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Henry Gantt A Gantt chart is a popular type of bar chart that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project.
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The Gilbreths The Gilbreths' motion studies were more focused on how a task was done, and how best to eliminate unneeded, fatiguing steps in any process.
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Walter Shewhart Shewhart framed the problem in terms of assignable-cause and chance-cause variation and introduced the control chart as a tool for distinguishing between the two. Shewhart stressed that bringing a production process into a state of statistical control, where there is only chance-cause variation, and keeping it in control, is necessary to predict future output and to manage a process economically.
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SIGNIFICANT EVENTS CPM/PERT (Dupont, 1957) MRP (Orlicky, 1960) CAD
Flexible manufacturing systems (FMS) Manufacturing automation protocol (MAP) Computer integrated manufacturing (CIM)
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WHY STUDY OM? OM is one of three major functions (marketing, finance, and operations) of an organization We want/need to know how goods and services are produced We want to know what operations managers do OM is such a costly part of an organization
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WHY STUDY OM? Related activities: managing purchases inventory control
quality control storage logistics evaluations and we need to comunicate them with each others.
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WHY STUDY OM? OM often includes substantial measurement and analysis of internal processes, because a great deal of focus is on efficiency and effectiveness of processes. Ultimately, the nature of how operations management is carried out in an organization depends very much on the nature of products or services in the organization.
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WHAT OPERATIONS MANAGERS DO (by Henri Fayol):
Plan Organize Staff Lead Control
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PLANNING The process of deciding what to do. Effective planning seeks to answer questions such as: What should the firm do? The output of this process are goals and objectives. When must the firm achieve these goals? The output is a schedule defining milestones and due dates. Who is responsible for doing it? The outputs are assigned responsibilities. How should this be done? The outputs may be directions or plans of action. How should performance be measured? The output includes standards of performance. Planning is forward looking. When planning is operational, the planning horizon is shorter and the level of detail within is greater. When strategic, the planning horizon is long and done in less detail.
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ANALYSING The process of making sense of data that is often: poorly structured, incomplete, inconsistent, inaccurate, and/or available in overwhelming quantities. Analysis supports the planning process by providing the “facts” in useful formats that can then be used to evaluate business alternatives. Analyzing also supports management’s control activity by providing the basis for corrective actions.
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ORGANIZING The process of building organization structures and interrelated task coordination teams. In the past, organizing dealt mostly with humans, but increasingly it involves data-getting: the right person the right information in the right form at the right time those factors are the key success in organization design.
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DIRECTING/IMPLEMENTING
An action-oriented process that carries out the outputs of the first three management activities. This is where money is made and lost (!). In this process, management expends resources to perform the tasks defined by the planning process.
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CONTROLLING The process of measuring the results of the other four management activities. Were the plans any good? Did the analysis provide meaningful information to the other processes? How well did we organize our resources to get the job done? How well did we do it? We might even add, how well did we measure the performance of our control function?
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10 CRITICAL DECISIONS Service, product design Quality management
Process, capacity design Location Layout design Human resources, job design. Supply-chain management Inventory management Scheduling Maintenance
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SECTION OF OM Procurement (Purchasing) Practices
reviews guidelines for buying various materials from suppliers and vendors - materials, including computers, services from lawyers, insurance, etc. Management Control and Coordinating Function includes a broad range of activities to ensure that organizational goals are consistently being met in an effective and efficient fashion
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SECTION OF OM Product and Service Management Quality Management
the major activities involved in product and service management are similar to those in operations management. However, operations management is focused on the operations of the entire organization, rather than managing a product or service. Quality Management is crucial to effective operations management, particularly continuous improvement. More recent advancements in quality, such as benchmarking and Total Quality Management, have resulted in advancements to operations management as well.
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SECTION OF OM Inventory Management
Costs can be substantial to store and move inventory. Innovative methods, such as Just-in-Time inventory control, can save costs and move products and services to customers more quickly. Logistics and Transportation Management is focused on the flow of materials and goods from suppliers, through the organization and to the customers, with priority on efficiency and cost effectiveness.
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SECTION OF OM Facilities Management Configuration Management
depnds a great deal on effective management of facilities, such as buildings, computer systems, signage, lighting, etc. Configuration Management It's important to track the various versions of products and services. Consider the various versions of software that continually are produced, each with its own version number. Tracking these versions is configuration management. Distribution Channels The means of distribution depend very much on the nature of the product or service.
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ORGANISATIONAL FUNCTIONS
Marketing Gets customers Operations creates product or service Finance/Accounting Obtains funds Tracks money
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WHERE ARE THE OM JOBS? Technology/methods Facilities/space utilization
Strategic issues Response time People/team development Customer service Quality Cost reduction Inventory reduction Productivity improvement
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NEW CHALLENGES IN OM FROM TO Global focus Just-in-time
Local or national focus Batch shipments Low bid purchasing Lengthy product development Standard products Job specialization Global focus Just-in-time Supply chain partnering Rapid product development, alliances Mass customization Empowered employees, teams
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CHARACTERISTICS OF GOODS
Tangible product Consistent product definition Production usually separate from consumption Can be inventoried Low customer interaction
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CHARACTERISTICS OF SERVICES
Intangible product Produced & consumed at same time Often unique High customer interaction Inconsistent product definition Often knowledge-based Frequently dispersed
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GOODS VS. SERVICES Can be resold Can be inventoried
Some aspects of quality measurable Selling is distinct from production Reselling unusual Difficult to inventory Quality difficult to measure Selling is part f serviceo
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GOODS VS. SERVICES (2) SERVICES GOODS
Product is transportable Site of facility important for cost Often easy to automate Revenue generated primarily from tangible product Provider, not product is transportable Site of facility important for customer contact Often difficult to automate Revenue generated primarily from intangible service.
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THE ECONOMIC SYSTEM TRANSFORMS INPUTS TO OUTPUTS
Land, Labor, Capital, Management Goods and Services Feedback loop Inputs Process Outputs
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INPUTS / OUTPUTS
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PRODUCTIVITY Units produced Productivity = Input used
Measure of process improvement Represents output relative to input Productivity increases improve standard of living From 1889 to 1973, U.S. productivity increased at a 2.5% annual rate Productivity Units produced Input used =
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MEASUREMENT PROBLEMS Quality may change while the quantity of inputs and outputs remains constant External elements may cause an increase or decrease in productivity Precise units of measure may be lacking
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PRODUCTIVITY VARIABLES
Labor - contributes about 10% of the annual increase Capital - contributes about 32% of the annual increase Management - contributes about 52% of the annual increase
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SERVICE PRODUCTIVITY Typically labor intensive
Frequently individually processed Often an intellectual task performed by professionals Often difficult to mechanize Often difficult to evaluate for quality
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