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Management of technology and development Exercise 1 Sanja Marinkovic
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Scientific forecasting Two approaches in development of scientific forecasting: Trend extrapolation from the past and application to the future Consideration of cause-effect relationships
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Forecasting model Input data intuition Output Predictions Quantitative data Qualitative data Time Probability
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Output of forecasting Quantitative data Qualitative data Time Probability
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F orecasting methods Exploratory methods Normative methods
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Important criteria in selecting the method Accuracy of methods Available data Time horizon Costs Simplicity in application
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Delphi Method Exploratory and intuitive method Uses advantages of group opinion Overcomes obstacles which appear in group work
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Some facts NAME: Oracle of Ancient Greece FIRST USED: in 1950s by RAND Corporation in the USA COLD WAR APPLICATION (Question related to likely number of USSR nuclear missiles)
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Delphi Method Qualitative research method with quantitative elements Relies on the judgment of a panel of experts Iterative process, taking place over a number of ‘rounds’
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Delphi Method Key features Anonymity of individuals Iterative process, ‘rounds’ with controlled feedback Statistical calculation Questionnaire
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Application of Delphi method is adequate when we need: Subjective assessment The experts of different profiles Heterogeneous participants Large groups … when we need: Subjective assessment The experts of different profiles Heterogeneous participants Large groups … if there are : Difficulties when working face to face High travel costs Difficulties due to different value systems Limited Time Language barriers Problems related to domination Disagreements... if there are : Difficulties when working face to face High travel costs Difficulties due to different value systems Limited Time Language barriers Problems related to domination Disagreements...
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Steps in conducting Delphi Method 1. Determine the coordination group 2. Determine the expert group 3. Composing the questionnaire FIRST ROUND SECOND ROUNDTHIRD ROUND.... ROUND: Sending questionnaires Filling in the questionnaires Statistical calculation and feedback to expert group
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Presentation of results Statistical measures Graphical presentation Verbal description
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Questions in Delphi TIME NEEDS POSSIBILITIES EFFECTS CONDITIONS
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Variations in answers o (optimistic) m (expected) p (pessimistic) x 1 answer3 answers
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In how many years 0 1 2 3 4 5 6 7 8 9 Year 20072008 200 9 20 10 20 11 20 12 20 13 20 14 20 15 20 16 Question Predictions 1 2 3 4 5 6 Example of Questionnaire Expert no.____ Round no.____
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In how many years 0 1 2 3 4 5 6 7 8 9 Year 20072008 200 9 20 10 20 11 20 12 20 13 20 14 20 15 20 16 Expert Predictions 1 x 2 x 3 x 4 x 5 x 6 x Question no.___ _____ Round
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Statistical calculation (1 answer) t n - average time of occurrence f i - frequency Dispersion Dispersion Standard deviation Standard deviation
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In how many years 0 1 2 3 4 5 6 7 8 9 Year 2007 200 8 2009 20 10 20 11 20 12 20 13 20 1 420 1 520 1 6 Expert Predictions 1 o mp 2 m 3 omp 4 o mp 5 m 6 omp 7 m
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Statistical calculation (3 answers) r 1, r 2 i r 3 are given by PERT method r 1 =1, r 2 =4 i r 3 =1 r 4 =36
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Overall expected time of occurrence and dispersion are calculated by equations :
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Probability of occurrence
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Assignment Select the industry/organization adequate for conducting Delphi forecasting Prepare a list of 10 questions for Delphi questionnaire relevant for forecasting future developments in the environment that could affect organizations in selected industry
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