MANAGEMENT FOR ENGINEERS EMIS 8364 Fall 2004 @ Lockheed Martin Day # 1, Friday, August 13, 2004; 8:00 am to 5:00 pm Chapters 1-5: 1. 2. 3. 4. 5. Engineering and Management Basics History of Engineering Management Planning and Forecasting Decision Making & Statistical Analysis Organizing Chapter 1: Engineering and Management Basics Origin of word Engineer - Latin for a talent, natural capacity, or clever invention. According to Webster Dictionary – (1) The art of managing engines, (2) The application of science and mathematics by which the properties of matter and sources of energy in nature are made useful to man in structures, machines, products, systems, and processes. Engineering as a Profession: The profession in which a knowledge of the mathematical and natural sciences gained by study, experience, and practice is applied with judgement to develop ways to utilize, economically, the materials and forces of nature for the benefit of mankind. Engineers: Individuals with baccalaureate or higher degrees in engineering, science, or mathematics who have acquired status as engineers. People whose highest degree is an associate engineering or technologist degree and who have acquired status through experience as engineers or as engineering technicians or technologists. Individuals who over years of experience and/or non-collegiate training have acquired the skills and knowledge to be bona fide engineering work. Professional engineers licensed by State regulatory agencies. Engineering Degrees: Management for Engineers 1 Science vs. Engineering: Engineering Disciplines: Management: Young engineers or scientists’ narrow viewpoint: Management is something “they” do, a world full of time-wasting effort spent mainly on useless meetings and covering up one’s mistakes and stabbing peers in the back in a bid to reach the top of the corporate ladder. Is this viewpoint correct? Management is – 1. An organizational or administrative process 2. A science, an art or a discipline 3. The group of people running an organization 4. An occupational career From academic view point Management is a process: The work of creating and maintaining environment in which people can accomplish goals efficiently and effectively. The process of achieving desired results through efficient utilization of human and material resources. The process of reaching organizational goals by working with and through people and other organizational resources. A set of activities (including planning and decision making, organizing, leading and controlling) directed at an organization’s resources (human, financial, physical and information) with the aim of achieving organizational goals in an efficient and effective manner. The process by which managers create, direct, maintain and operate purposive organizations through coordinated, cooperative human effort. Management for Engineers 2 The process of acquiring and combining human, financial, informational and physical resources to attain the organization’s primary goal of producing a product or service desired by some segment of society. Are Managers Bosses? An engineer who goes into management expecting to be a leader, to issue commands and have subordinates follow without question, will be disappointed. From business executives view point Management is: Being a respected and responsible representative of the company to your subordinate The ability to achieve willing and effective accomplishments from others toward a common business objective Organizing and coordinating a profitable effort through good decision making and people motivation Getting things done through people The means by which an organization grows and dies The overall planning, evaluating and enforcement that goes into bringing about “the name of the game” - profit Keeping your customers happy by delivering a quality product at a reasonable cost Directing the actions of a group to accomplish a desired goal or objective in the most efficient manner Is Management a Science or an Art? It is not an exact science, like engineering. There are no fixed answers in management. All that one can hope to do is to learn the basic principles. The aspiring manager must use common sense in applying these principles to real life situations. What is Engineering Management? Management for Engineers 3 Narrow Definition: Direct supervision of engineers or of engineering functions, e.g., supervision of engineering research or design activities. Broader Definition: The engineering manager is distinguished from other managers because he/she possesses both an ability to apply engineering principles and a skill in organizing and directing people and projects. He/she is uniquely qualified for two types of jobs: the management of technical functions, for example, design or production or the management of broader functions, for example, marketing or top management. Engineers can be especially effective in the general management of technically oriented organizations, such as high-technology enterprises due to the following: Understand both the technology that is driving the business today and the technology that will change the business in the future. Treat research and development as an investment to be nurtured, rather than an expense to be minimized. Place a premium on innovation Strategic thinking with future technologies Management Levels & Skills: First-line managers are generally responsible for carrying out the plans and objectives of higher management, using the personnel and other resources assigned to them. Middle managers carry titles such as plant manager, division head, chief engineer or operations manager. They make plans of intermediate range to achieve the long-range goals set by top management, establish departmental policies, and evaluate the performance of subordinate work units and their managers. Top managers bear titles such as chairman of the board, president, or executive vice president; one of these will normally be designated “chief executive office” (CEO). While they may report to some policy-making group (the board of directors, legislature, our council, they have no full-time manager above them. Managerial Skills Management for Engineers 4 Technical Interpersonal Conceptual Lowest level of manager has the greatest need for technical skills, such as engineering, accounting, machining or word processing. Interpersonal skills are important at every management level. Conceptual skills represent the ability to "see the forest in spite of the trees”. This ability is essential to the top manager’s responsibility for setting king-term objectives for the enterprise. Managerial Roles and Functions: Roles Interpersonal – figurehead, leader, liaison Informational – monitor, disseminator, spokesperson Decisional – resource allocator, negotiator, disturbance handler, entrepreneurial Functions Planning Organizing Staffing Leading Controlling Requirements for PE License in Texas Order of the Engineer – Obligation of the Engineer Engineering Ethics, NSPE Code of Ethics Technical vs. Non-Technical Content of Job Personal/Regulatory/Legal/HR/Personnel Issues “Day Care” Delegate Authority not Responsibility Management for Engineers 5 MOTIVATION Figuring out why people don't do what you want them to do at work* We've all been there, mystified by the behavior of each other, asking ourselves questions like: "Why are they doing it that way?" "Why aren't they doing their job?" "Why can't I get him/her to cooperate?" "I thought I was clear about what I wanted, I guess not!" Often we make faulty conclusions based upon our own untested assumptions, e.g.: "They don't have the capability to do the job." "They aren't motivated enough." "They have a bad attitude about their job." *********************** Below are some questions to ask to help diagnose such situations. With the proper diagnosis of root cause, you have a better shot at resolving the situation to everyone's benefit and growth. For whatever behavior is not being demonstrated by someone: 1. Do they know WHY they should be doing it? [Provide people with an understanding of the big picture and the importance of their specific contribution] 2. Do they know HOW to do it? [Provide people with proper training to do their jobs and ask if they feel comfortable with their job. Some people are hesitant to say "I don't know."] 3. Do they know it's a PART OF THEIR JOB? [Ensure that job descriptions and objectives reflect the full scope of their responsibilities] 4. Do they know how IMPORTANT it is? [Be clear about priorities within a person's job. Don't assume they will prioritize their activities the way that you would] 5. Is there a POSITIVE CONSEQUENCE for doing it, or a NEGATIVE CONSEQUENCE for NOT doing it? [Are they acknowledged/rewarded when they do it or coached when they don't do it?] 6. Are they PUNISHED when they do it? [e.g. the productive person who keeps getting new assignments because the boss knows he/she can rely on him/her, or the employee who gets labeled a troublemaker when they try to bring management's attention to a problem] 7. Do they think they are ALREADY DOING IT?! [Without frequent communication and feedback a person may think they're doing just fine -- the old "no news is good news!"] 8. Are there OBSTACLES beyond their control? [Best way to uncover this is to ask the person in the job] 9. Do they have the CAPABILITY to do it? [Have they had the proper education and/or experience, and coaching to perform in the job] 10. Are they experiencing PERSONAL PROBLEMS [Perhaps they did it before but stopped doing it due to special circumstances. Find out by asking.] 11. Can ANYONE do it? [Is the task in question even humanly possible - has anyone ever done it before?] Using the above questions to explore performance situations will help focus on the right solution. Often we immediately prescribe training which really only addresses a couple of the above root Management for Engineers 6 causes. The rest is about good supervisor/employee communication and "tuning in" to the individuals with whom your work. *********************** * Excerpted from Why Employees Don't Do What They're Supposed to Do and What to Do About It, by Ferdinand F. Fournies Management for Engineers 7 Chapter 2: History of Engineering Management Even the earliest civilization required management skills whenever groups of people shared a common purpose. Today, the word “scientific management” is used for finding better, more efficient ways to do things, orderly and systematically. Masons/Military (fortifications/weapons) The old Cottage Industry and Industrial Revolution of the 18th Century A series of labor saving inventions in the late 18th century changed the society completely Cottage industry replaced by factories. Explosive growth of Mill Towns led to: Filthy and overcrowded living Child labor Crime & Brutality Falling wages Unemployment Rising food prices Luddite Rebellion (1811-1816) A “worst case” scenario of public resistance to Modern Manufacturing Methods and Practices. Setting: British Industrial Revolution concluded Laws regulating the wool industry repealed British on the verge of war Depression Luddites used guerrilla tactics to destroy labor saving textile machinery throughout England. Like Robin Hood, “General Ludd” or “Ned Ludd” took on mythical proportions and received general public support. The 18th Century factory managers faced many of the same problems we face today: Recruiting Training Discipline Motivation Regular attendance Labor unrest This needed a professional manager Industrial Engineering: Management for Engineers 8 Industrial Engineering is concerned with the design, improvement, and installation of integrated systems of people, material, information, equipment and energy. It draws upon specialized knowledge and skills in the mathematical, physical and social sciences together with the principles and methods of engineering analysis and design to specify, predict and evaluate the results to be obtained from such systems. Pioneers in the evolution of Industrial Engineering: Charles Babbage Frederick Winslow Taylor Frank and Lilian Gilbreth Henry Gantt 1908 - First autonomous Industrial Engineering Department established at Pennsylvania State College. Scientific Management: Frederick W. Taylor is considered the father of Scientific Management. Taylor’s goal: Maximum efficiency in manufacturing organization. Taylor argued that people understand the need for efficiency because “we can see and feel the waste of material things, “But” our larger waste of human effort, “ brought on by the “awkward, inefficient, or ill directed movement of men, “are” less visible, less tangible, and ...but vaguely appreciated.” The fundamental cause of this waste of human effort was unscientific management: mangers focused too much on the output of work and not enough on the processes by which the work was done. Taylor’s approach: The substitution of a science for the individual judgment of the workman. (In most early nineteenth century workplaces, managers left it to work crews to determine the actual methods of work.) Principles of Scientific Management: First: Develop a science for each element of a man’s work, which replaces the old ruleof-thumb method. Second: Scientifically select, then train, teach, and develop the workmen, whereas in the past he chose his own work and trained himself as best as he could. Third: Heartily cooperate with the men so as to ensure all of the work being done in accordance with the principles of the science which has been developed. Fourth: There is an almost equal division of work and the responsibility between the management and the workmen. the management take over all work for which they are Management for Engineers 9 better fitted than the workman (defining how work is to be done), while in the past almost all of the work and the greater part of the responsibility were thrown upon the men.” Hawthorne Studies W. Edwards Deming – The Quality Guru & TQM Deming Cycle P-D-C-A 1. Plan 2. Do 3. Check 4. Act Deming’s Philosophy - The most important changes that an organization must make in order to produce successfully are (from book - Out of the Crises): 1. Create consistency of purpose toward improvement of product and service 2. Adopt the new philosophy: we are in a new economic age 3. Cease dependence on mass inspection as a way to achieve quality 4. End the practice of awarding business on the basis of price tag 5. Constantly and forever improve the system of production and service; the system includes people 6. Institute training on the job 7. Institute leadership to help people and machines to do a better job 8. Drive out fear 9. Break down barriers between departments 10. Eliminate slogans and targets for zero defects and new levels of productivity 11. Eliminate work standards and management by objectives 12. Remove barriers that rob people of their rights to pride of workmanship 13. Institute a vigorous program of education and self-improvement 14. Put everybody in the company to work to accomplish the transformation How would you go about instilling commitment to Deming’s philosophy in your company? Chapter 3: Planning and Forecasting Five Fundamental Functions of Management: Management for Engineers 10 Planning Organizing Staffing - Service Relationships – Supportive of main mission Leading (or directing or motivating) Controlling Planning and forecasting are the key results areas on which the survival of the organization depends. Planning provides a method of identifying objectives and designing a sequence of programs and activities to achieve these objectives. The basic, logical method for solving problems is called: Planning process, or Decision making process, or Scientific Method A clear vision of the basic purpose or mission for which it exists is essential to the long term success of any enterprise. Where there is no vision, the people parish. Three components of a good “vision framework”: Core Values and Beliefs: A system of guiding principles Purpose: The fundamental reason for existence Mission: A goal with a clear finish line and a specific time frame Planning Involves: Goals and Objectives Strategies Planning Horizon Policies and Procedures Establishment of Objectives (Peter Drucker): Market Share Innovation Management for Engineers 11 Productivity Physical and Financial Resources Manager Performance and Development Worker Performance and Attitude Profitability Social Responsibility Management by Objective (MBO): Have an understanding of the goals and objectives of the overall organization and those of the superior’s group Goals must be quantifiable and verifiable Individual goals must be consistent with the organization goals At the end of the period, evaluate the success in meeting assigned goals Strategic planning: Identify the businesses a company is in and the ones it wants to be in the future, and to define a strategy for getting from the first to the second. Business Portfolio Matrix. Strategic Management of Technology: The management of technology encompasses the management of research, product and process development and manufacturing engineering. Three Broad Classes of technologies: Basic technologies – Firm must master to exist Key technologies – For competitive advantage Pacing Technologies - Tomorrow’s key technologies Forecasting An essential requirement to effective planning is forecasting what the future will be like. Future markets and future technology forecasting: Management for Engineers 12 Market and Sales Forecasting: Common Forecasting Methods: Jury of executives Sales force composite User’s expectation Quantitative forecasting methods: Simple moving average Weighted moving average Exponential smoothing Simple Regression model Multiple regression model Choice of method: Combination of many of the above Technological Forecasting: Based on three premises: 1. Technological events and capabilities grow in a very organized manner 2. Technology responds to needs, opportunities and provision of resources 3. New technology can be anticipated by understanding the process of innovation Types of technological forecasting: Normative – starts with desired future goals and develop it Exploratory - extrapolates in to future from present Delphi Method: This technique is based on using the judgement of a panel of experts to arrive at a convergence regard the forecast of a new technology. Chapter 4: Decision Making & Statistical Analysis Decision Making: Managerial decision making is the process of making a conscious choice between two or more rational alternatives in order to select the one that will produce the most desirable consequences (benefits) relative to unwanted consequences (costs). Decision making is an essential part of planning. Management for Engineers 13 Occasions for Decision Making Authoritative communication Referred by subordinates Own initiative Types of Decisions: Routine Non-routine Rational decision making process consists of optimizing, or maximizing, the outcome by choosing the single best alternative from among all possible ones. Objective Rational decisions are made by: (a) Viewing the behavior alternatives prior to decision in panoramic fashion (b) Considering the whole complex of consequences that would follow on each choice (c) With the system values as criterion singling out one from the whole set of alternatives. Actual decisions (Bounded Rational Decisions) are made by: Fragmentary knowledge of consequences Imperfectly anticipated values Few of the possible alternatives ever come to mind Management Science/ Operations research Five step Process: 1. Formulate the problem (Real world) 2. Construct a mathematical model 3. Test the model 4. Derive a solution 5. Apply the model solution to the real problem Decision Making Under certainty: Linear Programming Characteristics of LP Problems: A well defined single objective must be stated Management for Engineers 14 There must be alternative courses of action The total achievement of the objective must be constrained by scarce resources or other restraints The objective and each of the constraints must be expressed as linear mathematical functions Example #1 Linear Programming Problem: Consider a factory producing two products, product X and product Y. If you can realize $10 profit per unit of product X and $14 per unit of product Y, what is the production level x of product X and y units of product Y that maximizes the profit P? Your factory is subject to following resource limitations or constraints: it can employ only five workers, three machinists and two assemblers, that each works only 40 hours a week and products X and/or Y can be produced by these workers subject to following constraints: Product X requires three hours of machining and one hour of assembly per unit and Product Y requires two hours of machining and two hours of assembly per unit. Profit Function: P = 10 X + 14 Y Constraints: 3 Machinists = 120 hrs. Machine time 2 Assemblers = 80 hrs Assembly time 1. 3X + 2Y <= 120 2. X + 2Y <= 80 Solution: Graphical Solution: Analytical 3X + 2Y = 120 X + 2Y = 80 2X = 40, X = 20 20 + 2Y = 80, 2Y = 60, Y = 30 P = 10 X + 14 Y Management for Engineers 15 P = 10 x 20 + 14 x 30 P = 620 Example #2 The Secret formula The two main items which go into the manufacturing of Zing ( a component of a floroll) are known simply as Formula X and Formula Y. The composition of these two ingredients is a closely guarded secret, but both are produced by two processes, Upper and Lower. To produce one gallon of Formula X requires 4 hours in the Upper process and 2 hours in the Lower process. To produce one gallon of Formula Y requires 1 hour in the Upper process and 3 hours in the Lower process. The total amount of time available, in a day, in the Upper process is 80 hours, and in the Lower process it is 120 hours. The manufacturing makes a profit of $10.00 by selling one gallon of Formula X and $15.00 by selling Formula Y. The objective is to maximize profits, while working within the constraints of the processes. P = 10 X + 15 Y 1. 4X + Y <= 80 2. 2X + 3Y <= 120 3. X >= 0 4. Y >= 0 Solution: Graphical Solution: Analytical 4X + Y = 80 2X + 3Y = 120 12X + 3Y = 240 10X = 120, X = 12 4 x 12 + Y = 80 Y = 80 – 48 = 32 P = 10 x 12 + 15 x 32 P = 120 + 480 = 600 If suppose Process Y had 180 hours i.e., 2X + 3Y <=180 12X + 3Y = 240 2X + 3Y = 180 Management for Engineers 16 10X = 60, X = 6 2 x 6 + 3Y = 180 3Y = 168, 10X = 60, X = 6 2 x 6 + 3Y = 180 3Y = 168, Y = 56 P = 10 x 6 + 15 x 56 P = 60 + 840 = 900 Steps in Formulating LP Problems: 1. Define the objective 2. Define the decision variables 3. Write the mathematical function for the objective (objective function) 4. Write a one or two word description of each constraint 5. Write the right-hand side (RHS) for each constraint, including the units of measure 6. Write<, =, or >, = for each constraint 7. Write all the decision variables on the left-hand side of each constraint 8. Write the coefficient for each decision variable in each constraint Steps in the Graphical LP Solution method: 1. Formulate the objective and constraint functions 2. Draw a graph with one variable on the horizontal axis and one on the vertical axis 3. Plot each of the constraints as if they were lines or equalities 4. Outline the feasible solution space 5. Circle the potential solution points. These are the intersections of the constraints or axes on the inner (minimization) or outer (maximization) perimeter of the feasible solution space 6. substitute each of the potential solution point values of the two decision variables into the objective function and solve for Z 7. Select the solution point that optimizes Z Computer solutions: Simplex Method - George Danzig of Stanford University Projective Geometry - N. Karmakar of Bell Laboratories Inventory Control: How large should the inventory be and how often should it be replaced to minimize the cost and meet the demand? Management for Engineers 17 Economic Order Quantity (EOQ) Assume: R = Total requirement for the period Q = No. of units per batch S = Order or set-up cost per batch I = Investment of storing cost per Unit Investment cost = ( I x Q ) /2 Set-up or ordering cost = S (R /Q) Total cost = Inv. Cost + Order cost Objective: Minimize Total cost EOQ = Sqrt ( 2 R S / I ) Example: I = $ 2 / Unit S = $40 per order R = 1000 Units / Yr EOQ = Sqrt ( 2 . 1000. 40 / 2) = Sqrt ( 40,000) = 200 Units If set-up or ordering cost is reduced to $10 ( one fourth) EOQ = Sqrt ( 2. 1000 . 10 / 2) = Sqrt (10,000) = 100 Units / Yr Queuing Theory Models: Arrival rate = a Serving rate = s Traffic intensity = p p=a/s Traffic intensity is the probability that an arrival will have to queue. Management for Engineers 18 Many assumptions are involved in an analytical solution For a single service channel: Average number in queue = p2 / ( 1 – p) Average waiting time in queue = p / ( s – a ) Simulation Techniques Decision Making Under Risk: Nature of Risk Expected Value Decision Trees Risk as Variance Decision Making under Uncertainty: Competitive Strategy Theory of Games Zero- sum games Computer Based Information Systems: Integrated Data Bases Management Information Systems (MIS) Decision Support Systems (DSS) Expert Systems Artificial Intelligence: A form of computer reasoning designed to mimic that of the human reasoning process. Artificial intelligence may be thought of as the umbrella term for many forms of evolving technology (expert system, fuzzy logic, neural network) that in some manner attempts to embody the computer with human-like capabilities be they thinking, seeing, hearing etc. Soft computing consciously exploits the tolerance for imprecision to solve problems that could not otherwise be solved. Soft computing incorporates three main constituents: fuzzy logic, neural networks, and probabilistic reasoning. Expert Systems: An expert system is an information system which provides the user with a facility for posing and obtaining answers to questions relating to the information stored in its knowledge base. The knowledge base of an expert systems is a repository of Management for Engineers 19 human knowledge. Typically, such systems possess a user-invisible, nontrivial inferential capability and have the capability to infer from premises which are imprecise, incomplete or not totally reliable. The idea behind the use of an expert system is to capture in a computer program the knowledge and skills of a person who is an expert in a given field. Fuzzy Logic: Fuzzy logic is an attempt at formalization of approximate reasoning, which is characteristic of the way in which humans reason in an environment of uncertainty and approximation. Fuzzy logic holds that all things are a matter of degree. Fuzzy logic has been used in applications areas such as project management, product pricing models, sales forecasting, criminal identification, process control and signal processing. It is important to realize that fuzzy logic is a logic of fuzziness, not a logic which is itself fuzzy; analogous to probability - laws of probability are not random, just as laws of fuzziness are not vague. Implementation: Decisions, no matter how well conceived, are of little value until they are put to use. Management for Engineers 20