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Operations Management BA-339 R. M

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1 Operations Management BA-339 R. M
Operations Management BA-339 R.M.Zahrowski Operations and Productivity Chapter 1 Bob Introduce yourself - qualifications and interests - overall, where you are coming from. 2. Have students introduce themselves. each other. 3. Discuss both choice of textbook and development of syllabus. 4. Teams or no teams?

2 What Is Operations Management?
Production is the creation of goods and services Operations management is the set of activities that creates value in the form of goods and services by transforming inputs into outputs Two additional points: 1. Any activity is an “operation” 2. No company produces only “goods” - service is a greater or lesser part of any product. (Discuss this in more detail later)

3 Organizational Functions
Marketing Gets customers Operations creates product or service © 1995 Corel Corp. Here is the point at which you can add to your discussion of the three business functions. In an effort to encourage student participation, you might allow students to lead the discussion as to the nature of each function, while you lead the discussion as to the relationship of the individual functions to the larger business. Initiate a class discussion about how these functions expand as the firm grows and how new activities have become important (i.e., MIS and Human Resources) Finance/Accounting Obtains funds Tracks money

4 Organizational Charts
Commercial Bank Operations Teller Scheduling Check Clearing Transactions processing Facilities design/layout Vault operations Maintenance Security Finance Investments Real Estate Accounting Auditing Marketing Loans Commercial Industrial Financial Personal Mortgage Trust Department Marketing vs. Sales Clarify!

5 What Operations Managers Do
Plan - Organize - Staff - Lead - Control This is the typical breakdown one finds in many business courses. It may be helpful to the students if you discuss each of these elements in relationship to something you or they have done. Work on a group project, for example, can provide a useful vehicle for the discussion.

6 Ten Critical Decisions
Service, product design…………….. Quality management………………… Process, capacity design………….. Location …………….………………… Layout design ……………………….. Human resources, job design…….. Supply-chain management………… Inventory management ……………. Scheduling …………………………… Maintenance …………………………. Ch. 5 Ch. 6, 6S Ch. 7, 7S Ch. 8 Ch. 9 Ch. 10, 10S Ch. 11,11s Ch. 12, 14, 16 Ch. 3, 13, 15 Ch. 17 This slide introduces the 10 decision areas of Operations Management. These decision areas form the structure of the text. You may either go through this list quickly, and hold an enriched discussion using some of the slides that follow; or ask the students to give you examples of specific decisions from each area. As mentioned before - you may forego looking for precise answers at this point - and simply try to get them thinking and involved.

7 Why Study OM? OM is one of three major functions (marketing, finance, and operations) of any organization. We want (and need) to know how goods and services are produced. We want to understand what operations managers do. OM is such a costly part of an organization. One might ask students to consider: - marketing => deciding what is needed - finance => securing resources - operations => doing it! What are the limitations of this perspective?

8 Why Study OM? OM is one of three major functions (marketing, finance, and operations) of any organization. We want (and need) to know how goods and services are produced. We want to understand what operations managers do. OM is such a costly part of an organization. One might ask students to consider: - marketing => deciding what is needed - finance => securing resources - operations => doing it! What are the limitations of this perspective?

9 Operations Management R. M
Operations Management R.M.Zahrowski Operations Strategy in a Global Environment Chapter 2

10 The Role of Maquiladoras World Trade Organization (WTC)
North American Free Trade Agreement (NAFTA) European Union (EU)

11 Supply-Chain Management
Sourcing Vertical integration Make-or-buy decisions Partnering

12 Location Decisions Country-related issues Product-related issues
Government policy/political risk Organizational issues

13 Materials Management Flow of materials
Transportation options and speed Inventory levels Packaging Storage

14 Mission Mission - where are you going?
Organization’s purpose for being Provides boundaries & focus Answers ‘What do we provide society?’ © 1995 Corel Corp. You might ask students to prepare for class by visiting several company web sites, and, for each company: locating the company mission, and printing a copy of the mission to bring to class. The students should also be asked to, if possible, determine the strategy used by the company to achieve its avowed mission. You might even ask that a student finding a mission statement that they believe of special interest, bring a copy of the statement on a transparency. You might begin the class by asking students why a company’s mission is so important. Does it really convey important information, or is it, as some cynics might claim, simply an expression of wishful thinking? Among other benefits, the mission provides an “umbrella” under which decisions should be made. This may be especially useful for a global enterprise. If the students have obtained the mission statements of companies with which they are familiar, you might ask if their perception of the company suggests that it is fulfilling it published mission. If the answer is “No,” ask what suggests otherwise.

15 Mission/Strategy Mission - where you are going
Strategy - how you are going to get there; an action plan The distinction between mission and strategy probably requires some discussion. The best approach might be to ask students, who have obtained the mission statements of companies with which they are familiar, to discuss their perception of the company strategy. There may also be companies which publish a statement of strategy as well their mission on their web site.

16 Strategy Action plan to achieve mission
Shows how mission will be achieved Company has a business strategy Functional areas have strategies © 1995 Corel Corp. Here, you might introduce the hierarchical nature of strategies, and, as prelude to subsequent slides, ask students whether they believe it is better to plan from the top down, or bottom up.

17 Process Design Job Shops Mass Customization Assembly line Continuous
Process-focused Job Shops (Print shop, emergency room , machine shop, fine dining Repetitive (modular) focus Assembly line (Cars, appliances, TVs, fast-food restaurants) Product-focused Continuous (steel, beer, paper, bread, institutional kitchen) Mass Customization Customization at high Volume (Dell Computer’s PC) Low Moderate High Volume High Moderate Low Variety of Products This slide can be used to introduce the process design options, and help students begin to understand the conditions of volume and variety under which they are most useful. Student should be asked to provide and discuss examples.

18 SWOT Analysis Process Environmental Analysis
Determine Corporate Mission This slide can be used to frame a discussion of SWOT analysis. Students should be asked what types of questions might be appropriate at each stage. Form a Strategy

19 Operations Management Supply-Chain Management Chapter 11

20 Supply-Chain Management
Planning, organizing, directing, & controlling flows of materials Begins with raw materials Continues through internal operations Ends with distribution of finished goods Involves everyone in supply-chain Example: Your supplier’s supplier Objective: Maximize value & lower waste Probably the most important point to be made here is the encompassing nature of supply-chain management - from suppliers’ suppliers through internal production through distribution to the customer.

21 Make/Buy Considerations
Reasons for Making Reasons for Buying Maintain core competencies and protect personnel from layoff Lower production cost Unsuitable suppliers Assure adequate supply Utilize surplus labor and make a marginal contribution Frees management to deal with its primary business Lower acquisition cost Preserve supplier commitment Obtain technical or management ability Inadequate capacity Ask students to consider the product characteristics which might cause a company to choose one or the other of the make/buy options.

22 Supply-Chain Strategies
Plans to help achieve company mission Affect long-term competitive position Strategic options Many suppliers Few suppliers Keiretsu network Vertical integration Virtual company The strategic options listed are expanded upon in later slides. Plan

23 Supply-Chain Strategies
Negotiate with many suppliers; play one supplier against another Develop long-term “partnering” arrangements with a few suppliers who will work with you to satisfy the end customer Vertically integrate; buy the actual supplier Keiretsu - have your suppliers become part of a company coalition Create a virtual company that uses suppliers on an as-needed basis. Subsequent slides expand upon these strategies.

24 Operations Management Inventory Management Chapter 12
Use Dells Case study at the end of the chapter

25 What is Inventory? Stock of materials Stored capacity Examples
While most students recognize inventory as a “stock of material,” the notion of inventory as a “stored capacity” probably merits explicit discussion. Stored Capacity - Think of like fuel!

26 The Material Flow Cycle
Wait Time Move Time Queue Time Setup Time Run Time Other Input Output Cycle Time Run time: Job is at machine and being worked on Setup time: Job is at the work station, and the work station is being "setup." Queue time: Job is where it should be, but is not being processed because other work precedes it. Move time: The time a job spends in transit Wait time: When one process is finished, but the job is waiting to be moved to the next work area. Other: "Just-in-case" inventory. This slide provides a more detailed view of the material flow cycle. Students might be asked to comment on the impact of each element on the overall time. Questions such as: - why do we need these times? How do they relate to you companies? - how can they be reduced? - would we wish to eliminate these elements entirely? might be helpful.

27 ABC Analysis Divides on-hand inventory into 3 classes
A class, B class, C class Basis is usually annual $ volume $ volume = Annual demand x Unit cost Policies based on ABC analysis Develop class A suppliers more Give tighter physical control of A items Forecast A items more carefully It might be helpful here to discuss some of the differences in the ways we would manage items in the three different levels. What actions would we actually take in managing A versus in managing C?

28 Advantages of Cycle Counting
Eliminates shutdown and interruption of production necessary for annual physical inventories Eliminates annual inventory adjustments Provides trained personnel to audit the accuracy of inventory Allows the cause of errors to be identified and remedial action to be taken Maintains accurate inventory records An element to stress about cycle counting is that it usually identifies problems and enables action to be taken in a reasonable amount of time.

29 Operations Management Aggregate Planning = Aggregate Scheduling Chapter 13

30 Aggregate Planning Requires
Logical overall unit for measuring sales and outputs Forecast of demand for intermediate planning period in these aggregate units Method for determining costs Model that combines forecasts and costs so that planning decisions can be made It may be helpful to begin this chapter with a discussion of the various planning needs of an organization - from strategic planning down to day-to-day/hour-to-hour scheduling and dispatching. Identify the level of decision making (strategic, tactical, operational), and provide examples of the time periods and level of detail required - i.e., step through the various levels of disaggregation. When you get to this slide, you may want to spend a little extra time discussing how one develops a logical overall unit for measuring sales and output. Is the unit of dollars always the best? Could required units of capacity or something similar be used?

31 Planning Setting goals & objectives Determining steps to achieve goals
Example: Meet demand within the limits of available resources at the least cost Determining steps to achieve goals Example: Hire more workers Setting start & completion dates Example: Begin hiring in Jan.; finish, Mar. Assigning responsibility Of these steps, the most difficult to implement seems to be the goal setting. Discussion of setting goals and objectives in a practical case would probably be helpful to students.

32 Planning Tasks and Responsibilities

33 Operations Management Material Requirements Planning (MRP) & ERP Chapter 14

34 Inputs to the Production Plan
Aggregate Production Plan Marketing Customer Demand Engineering Design Completion Management Return on Investment Capital Human Resources Manpower Planning Procurement Supplier Performance Finance Cash Flow Production Capacity Inventory Inputs

35 Material Requirements Planning (MRP)
Manufacturing computer information system Determines quantity & timing of dependent demand items A point to stress here is that while MRP is heavily computer-based, it is more than simply a computer program. Involves inouts form all areas… Suppliers, material coding, etc.. © 1995 Corel Corp.

36 MRP Requirements Computer system Mainly discrete products
Accurate bill-of-material Accurate inventory status 99% inventory accuracy Stable lead times (calculated) It is important to emphasize the need for accurate records - both bill-of-material and inventory. And stability is not flat, but has to be forecasted accurately, ie: KNOWN lead times. © T/Maker Co.

37 Structure of the MRP System
Master Production Schedule BOM Lead Times (Item Master File) Inventory Data Purchasing data MRP planning programs (computer and software) MRP by Period Report MRP by date report Planned order report Purchase advice Exception report Emphasize that this slide illustrates the overall technological structure of MRP - people and process are also extremely important in its actual success. Bills of Material=how material is grouped (Parent - Child relationships)

38 MRP in Services Can be used when demand for service or service items is directly related to or derived from demand for other services restaurant - rolls required for each meal hospitals - implements for surgery etc. Have the students consider what modifications may be necessary for MRP to be valuable in services.

39 Operations Management Short-Term Scheduling Chapter 15

40 Forward and Backward Scheduling
Forward scheduling: begins the schedule as soon as the requirements are known jobs performed to customer order schedule can be accomplished even if due date is missed often causes buildup of WIP Backward scheduling: begins with the due date of the final operation; schedules jobs in reverse order used in many manufacturing environments, catering, scheduling surgery Students should be asked to consider how, using either process, they would modify the schedule when (a) an order is cancelled, (b) a priority, rush order is accepted, or (c) a delay is encountered.

41 The Goals of Short-Term Scheduling
Minimize completion time Maximize utilization (make effective use of personnel and equipment) Minimize WIP inventory (keep inventory levels low) Minimize customer wait time While we would like to minimize customer wait time, an alternate goal might be to make customer wait time consistent - we could always ask them to come later.

42 Priority Rules for Dispatching Jobs
First come, first served The first job to arrive at a work center is processed first Earliest due date The job with the earliest due date is processed first Shortest processing time The job with the shortest processing time is processed first Longest processing time The job with the longest processing time is processed first Critical ratio The ratio of time remaining to required work time remaining is calculated, and jobs are scheduled in order of increasing ratio. FCFS EDD SPT LPT CR Key TERMS!

43 Theory of Constraints A Five Step Process
Identify the constraints Develop a plan for overcoming the identified constraints Focus resources on accomplishing the constraints identified in step 2 Reduce the effects of the constraints by off-loading work or by expanding capability Once one set of constraints is overcome, return to the first step and identify new constraints

44 Bottleneck Work Centers
Bottleneck work centers have less capacity than prior or following work centers They limit production output © 1995 Corel Corp.

45 Techniques for Dealing With Bottlenecks
Increase the capacity of the constraint Ensure well-trained and cross-trained employees are available to operate and maintain the work center causing the constraint Develop alternate routings, processing procedures, or subcontractors Move inspections and tests to a position just before the constraint Schedule throughput to match the capacity of the bottleneck

46 Operations Management Just-in-Time and Lean Production Systems Chapter 16

47 What is Just-in-Time? Management philosophy of continuous and forced problem solving Supplies and components are ‘pulled’ through system to arrive where they are needed when they are needed. It is good at this point to emphasize the notion that JIT is a philosophy not simply delivery of small lots at specific times. It is also helpful to emphasize that JIT requires an ongoing effort.

48 Lean Production Lean Production supplies customers with exactly what the customer wants, when the customer wants, without waste, through continuous improvement.

49 Types of Waste Overproduction Waiting Transportation
Inefficient processing Inventory Unnecessary motion Product defects You should ask students to consider why such waste occurs.

50 Just-in-Time Success Factors
Suppliers Preventive Maintenance Layout Inventory Scheduling Quality Employee Empowerment JIT This side outlines the essential features, more detail is provided in subsequent slides.

51 Employee Empowerment Get employees involved in product & process improvements Employees know job best! JIT requires Empowerment Cross-training Training support Few job classifications © 1995 Corel Corp. It is important to point out to students that Employee Empowerment is one of the Critical Success Factors of JIT - perhaps the most important one.

52 Operations Management Maintenance and Reliability Chapter 17

53 Maintenance Management
All activities involved in keeping a system’s equipment working Objective: Maintain system capability & minimize total costs A major point to be emphasized here is the maintenance should attempt to minimize total cost - not just maintenance cost. A second point is that total cost should be what some call “whole body cost,” and include: - unit purchase cost - cost of training personnel to use the unit - cost of buying a replacement at the end of this unit’s lifetime - cost of disposing of the old unit - cost of maintaining the unit during its useful lifetime - cost of upgrading the unit during its lifetime - etc. © 1995 Corel Corp.

54 Maintenance Benefits Lower operating costs Continuous improvement
Faster, more dependable throughput Higher productivity Improved quality Improved capacity Reduced inventory Maintenance Examples demonstrating how each of the benefits is incurred would be worthwhile.

55 Types of Maintenance Preventive Breakdown
Routine inspection & servicing Prevents failures Bases for doing Time: Every day Usage: Every 300 pieces Inspection: Control chart deviations Non-routine inspection & servicing Remedial Basis for doing Equipment failure Choose several items or processes, and ask students to decide upon what basis they should be maintained. Ask them also to identify some of the costs of an inappropriate maintenance schedule.

56 A Computerized Maintenance System

57 A Key To Success High utilization of facilities, tight scheduling, low inventory and consistent quality demand reliability - total preventive maintenance is the key to reliability.

58 Best wishes on your final
Best wishes on your final! More than that – I wish you success in your careers! Chapters 1&2 11-17 Be sure to bring! Blue Book Scan-tron Short form


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