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8 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-1 1. A fundamental understanding of the term decision 2. An understanding of each element of the decision situation 3. An ability to use the decision-making process 4. An appreciation for the various situations in which decisions are made 5. An understanding of probability theory and decision trees as decision-making tools 6. Insights into groups as decision makers Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-2 Decision Making Skill The ability to choose alternatives that increase the likelihood of accomplishing objectives. Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-3 Definition of a Decision Types of Decisions Programmed Non-programmed The Responsibility for Making Organizational Decisions Elements of the Decision Situation • The Decision Makers • Goals to Be Served • Relevant Alternatives • Ordering of Alternatives • Choice of Alternatives Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-4 Definition of a Decision Decision is a choice made between two or more available alternatives. DM is the process of choosing the best alternative for reaching objectives. DM is required for all functions of management planning, organising, influencing and controlling. We make decisions every day. Managers make decisions affecting the organisation daily and communicate those decisions to other organization members. Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-5 Can be categorised How much time you need to spend? Who must be involved? Which org. Functions they should follow? Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-6 A programmed decision: is routine and repetitive so org. Have specific ways to handle these decisions. E.g. How products can be arranged on shelves of a supermarket. A Nonprogrammed decision: is typically a one-shot decision that is usually less structured than programmed decision. (e.g. expand operations in Africa) Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-7 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-8 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-9 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-10 The Decision Makers Weak decision makers usually have one of four orientations. Receptive(on suggestions of others), Exploitative (all info is out/ steal ideas), Hoarding(self-reliant) and marketing (what others think of their decisions). - Goal to be Served - Relevant Alternatives(eliminate irrelevant) - Ordering Alternatives, - Choice of Alternatives Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall - 8-11 1. 2. 3. 4. 5. Identify an existing problem List possible alternatives for solving problem Select the most beneficial of these alternatives Implement the selected alternatives Gather feedback to find out whether the implement alternative is solving the identified problem. Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-12 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-13 Identifying an Existing Problem Problems are brought to the attention of managers by: 1. Orders issued by managers’ supervisors 2. Situations relayed to managers by their subordinates 3. The normal activity of the managers themselves Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-14 Listing Alternative Solutions Limitations on the number of problem-solving alternatives available: 1. Authority factors 2. Biological or human factors 3. Physical factors 4. Technological factors 5. Economic factors Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-15 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-16 Selecting the Most Beneficial Alternative 1) List the potential effects of each alternative 2) Assign a probability factor to each of the potential effects 3) Compare each alternative’s expected effects and the respective probabilities of those effects Implementing the Chosen Alternative Gathering Problem-Related Feedback Feedback determines the implemented alternative’s effect on problem If problem is not solved, seek out and implement another alternative Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-17 For example, a property development company may be faced with the decision of whether to sell one of its properties now, or whether to wait for a year in the hope the property market improves. If it sells the property now it knows it will receive £250,000. However, if it sells in one year there are two possibilities: 1. There is a slump in the property market, so that the property can only be sold for £200,000. There is a nine out of ten chance that this will happen. 2. There is a boom in the property market, so that the property can be sold for £800,000. There is a one out of ten chance that this will happen. Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-18 Decision at uncertainty? Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-19 Decision – Making Heuristics and Biases Decision – Making Conditions: Risks and Uncertainty Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-20 Probability Theory Decision Trees To compare financial consequences, management must: 1. Study estimates of investment amounts necessary for: Building a large plant Building a small plant Expanding a small plant 2. Weigh the probabilities of facing different product demand levels 3. Consider projected income yields for each decision alternative Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-21 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-22 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-23 Advantages and Disadvantages of Using Groups to Make Decisions Processes for Making Group Decisions • Brainstorming Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-24 Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-25 Processes for Making Group Decisions (continued) Nominal Group Technique Step 1 — Each group member writes down individual ideas Step 2 — Each member presents individual ideas orally Step 3 — After members present ideas, entire group discusses ideas Step 4 — When discussion completed, a secret ballot is taken Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-26 Processes for Making Group Decisions (continued) Delphi Technique Step 1—A problem is identified Step 2—Group members are asked to offer solutions to the problem Step 3—Responses of all group members are compiled and sent out Step 4—Members are asked to generate a new individual solution Step 5 – Steps 3 and 4 are repeated until a consensus is reached Evaluating Group Decision-Making Processes Copyright ©2012 Pearson Education, Inc. Publishing as Prentice Hall 8-27