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Int. J. Production Economics 69 (2001) 15}22

Strategy management through quantitative modelling of performance measurement systems
U.S. Bititci*, P. Suwignjo, A.S. Carrie
Centre for Strategic Manufacturing, DMEM, University of Strathclyde, Glasgow G11XJ, UK Received 30 March 1998; accepted 29 September 1999

Abstract This paper is based on previous works on performance measurement and on quanti"cation of relationships between factors which a!ect performance. It demonstrates how tools and techniques developed can be used to evaluate the performance of alternative strategic choices through a quantitative approach to modelling of performance measurement systems. The paper provides a brief background to the research problem and preceding works. The tools and techniques used are brie#y introduced. Use of these tools and techniques to evaluate the performance of alternative manufacturing strategies is demonstrated. Finally, the capability of the approach to deal with dynamic environments is demonstrated 2001 Elsevier Science B.V. All rights reserved. using sensitivity analysis.
Keywords: AHP; Performance measurement; Prioritisation of performance measures; Dynamics of performance measures; Resource allocation

1. Introduction The nature of competition has changed dramatically over the last two decades. Quality, speed, and #exibility, in addition to cost, have emerged as the three most important competitive attributes [1}4]. This has made the traditional "nancially based performance measurement systems less relevant. Over recent years much work has been done by practitioners and researchers to develop new performance measurement systems which try to take account of "nancial and non-"nancial measures in balance [5}8]. Extensive, continuing research is

* Corresponding author. Tel.: #44-141-548-2015; fax: #44141-552-0557. E-mail address: csm@dmem.strath.ac.uk (U.S. Bititci)

also carried out at the Centre for Strategic Manufacturing (CSM), University of Strathclyde to develop a reference model for a robust and integrated performance measurement system. This research resulted in the development of a reference model and an audit method to assess the robustness and integrity of performance measurement systems used within manufacturing industries [9]. Audits carried out in over 30 organisations using this reference model revealed that the relationships between various performance measures in a system are not understood. In response to this particular "nding, another line of research was developed within the Centre to examine the appropriate tools and techniques which can be used to understand, model and if possible quantify the relationships between performance measures which exist in a business. This new

0925-5273/01/$ - see front matter 2001 Elsevier Science B.V. All rights reserved. PII: S 0 9 2 5 - 5 2 7 3 ( 9 9 ) 0 0 1 1 3 - 9

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line of enquiry resulted with the development of an approach which facilitates the development of quantitative models for performance measurement systems (QMPMS) [10]. The work presented in this paper demonstrates how the QMPMS approach could be adopted to evaluate the performance and sensitivity of alternative strategic choices. Firstly, the paper presents a brief summary of the QMPMS approach, then the use of the model to evaluate the performance of alternative manufacturing strategies is demonstrated. Finally, the paper concludes with a detailed discussion on the experiences and lessons learned by the researchers.

E identi"cation of the relationship between factors a!ecting performance, E quanti"cation of these relationships on one another, and on the overall performance of the business, and E `what ifa analysis on business performance and strategy selection. The three steps of the approach were developed as a result of the QMPMS project as depicted in Fig. 1. The details of this approach have been explained and discussed in some detail in a previous publication [10]. In general, the QMPMS approach classi"es the relationships between factors which a!ect performance as follows: E direct (vertical) e!ect, E indirect (horizontal) e!ect, and E self-interaction e!ect. Stage one of the QMPMS approach uses the cognitive mapping technique to identify factors which a!ect performance and their relationship with one another.

2. Quantitative model for performance measurement system (QMPMS) The objective of the research adopted under the heading of QMPMS was to identify tools and techniques that would facilitate: E identi"cation of factors a!ecting performance,

Fig. 1. The framework of the QMPMS approach.

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In stage two the cognitive maps are converted into a more formalised structure. Initially, cause and e!ect diagrams are used as a discussion tool to structure the factors which a!ect performance hierarchically. Structure diagrams are then used to formalise the hierarchical nature of the performance measurements system. Traditional structure diagrams only model the direct (vertical) relationships. However, a modi"ed version of the structured diagrams, as used by the QMPMS approach, model also the indirect (horizontal) and self-interaction relationships between factors which a!ect performance. Finally, in stage three the Analytical Hierarchy Process is used to quantify the relationship of each factor with the others with respect to overall performance.

3. Evaluating the performance of alternative manufacturing strategies Manufacturing strategy adopted by companies has a great impact on their internal environment. Di!erent manufacturing strategy requires di!erent competitive capabilities [11}13]. To build particular competitive capabilities as required by the adopted manufacturing strategy, companies must employ speci"c types of machines, tooling, layout, human resources, information #ows, systems, procedures, and technology. The con"guration of those entities determines the generic performance of the manufacturing system: cost, quality, delivery, and #exibility. Evaluation of the alternative manufacturing strategies requires that the performance of the strategies on cost, quality, delivery, and #exibility can be quanti"ed and aggregated. This is not a straightforward task, since cost, quality, delivery, and #exibility are measured in di!erent dimensions. Cost is measured in pounds, quality may be measured in parts per million of critical defects, delivery may be measured by % orders delivered on time, and #exibility may be measured in terms of time, volume or cost. As the operating environment of a "rm changes rapidly, the selection of manufacturing strategy to be adopted is becoming more di$cult. A manufacturing strategy, which is successfully being em-

ployed today, cannot be guaranteed to deliver the same results over the next two years. Consequently, the evaluation of alternative manufacturing strategies must take into account the dynamics of the external and internal environments. It is the hypothesis of the work presented in this paper that the QMPMS approach could be an e!ective tool for evaluating the e!ectiveness and sensitivity of alternative manufacturing strategies. For example, suppose an engineering company wants to expand its business by introducing a new product line and also wants to construct a new factory to produce the new product line. As the characteristics of the new factory will be in#uenced by the manufacturing strategy adopted, an analytical evaluation must be carried out to decide what kind of manufacturing strategy should be adopted. This analysis could be carried out using the QMPMS framework. Assuming the company employs a &make to order' policy, based on the generic manufacturing strategies identi"ed by Sweeney and Szwejczewski [12,13], two alternative strategies can be adopted by the company depending on the volume of demand. If demand is low the company should adopt &Innovator' strategy. If demand is high the company should adopt &Mass Customiser' strategy. These two strategies require di!erent competitive characteristics as illustrated in Table 1. The di!erences between the two groups lie in the elements of the characteristics and their relative positions in the group (ranking). The innovator strategy primarily stresses quality and ability to change product designs rapidly. To have the ability to accommodate rapid product design changes, the manufacturing system must be able to shift from one type of product to another very quickly. In other words, the manufacturing system should be

Table 1 Competitive characteristics of two alternative manufacturing strategies Innovator 1. Consistent quality 2. Rapid product design change 3. Improved product performance 4. Dependable/reliable delivery Mass customiser 1. Dependable delivery 2. Short delivery lead-time 3. Consistent quality 4. Product performance

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#exible. The next two competitive capabilities of the innovator strategy are improved product performance and dependable delivery. Referring to the generic performance of a manufacturing system mentioned earlier, the innovator must be excellent in quality, #exibility and delivery. Although it is necessary to control cost, it is not the principal characteristic for competitiveness. The mass customiser strategy prioritises dependable delivery and short-delivery lead-times. Both these competitive capabilities relate to delivery in the generic performance of a manufacturing system. The next two competitive characteristics are consistent quality and product performance. The ability of the mass customiser to win competition is a!ected much more by performance in delivery and quality rather than performance in #exibility and cost. Using the QMPMS approach, the hierarchical structure of the evaluation of the performance of Innovator and Mass Customiser manufacturing strategies can be constructed as indicated in Fig. 2. The level 0 of the structure is the overall performance of the manufacturing strategies. The performance of the manufacturing strategies depends on

the volume of the demand (the scenario) as indicated by level 1 of Fig. 2. There are three possibilities of level of demand: low (pessimistic scenario), average (normal scenario) and high (optimistic scenario). Level 2 of the structure is performance criteria. Based on the generic performance of manufacturing strategy, the performance of the alternatives can be evaluated based on the criteria cost, quality, delivery and #exibility. Finally, level 3 of the structure is the alternative manufacturing strategies, which could be adopted. Evaluation of these alternative strategies is carried out level by level starting from the top level down to the lower levels. The "rst evaluation assesses the possibilities of scenarios occurring in the planning period. The second evaluation assesses the relative e!ects of each criterion on performance under a particular scenario. For example, what are the relative e!ects of cost, quality, delivery and #exibility on performance if demand is low. The relative e!ects of each criterion on performance are not necessarily the same under di!erent scenarios. The third evaluation assesses the performance of each alternative on each performance criterion. Finally, the overall performance of

Fig. 2. Hierarchical structure of manufacturing strategy performance evaluation.

U.S. Bititci et al. / Int. J. Production Economics 69 (2001) 15}22

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each alternative can be computed through the composition process as explained earlier. Using the AHP software (ExpertChoice [20]) the performance of Innovator and mass customiser strategies can be evaluated as indicated in Fig. 3. From the evaluation, it can be seen that the performance of mass customiser strategy (0.515) is better than the performance innovator strategy (0.485), given that the probability of demand for low, average and high are 14.3%, 28.6% and 57.1%, respectively.

4. The dynamics and sensitivity analysis Management uses a set of "nancial and non"nancial performance measures to monitor and

control the operation of companies through a set of performances. As external environments change rapidly, the set of performance measures employed by companies should also change to re#ect changes in the environment. That is, performance measures reported to the management should change as a result of changes in customers, competitors, internal improvement and so on. Walker proposed the use of dynamic management reporting to keep performance measures up to date [14]. The changes of performance measures can be in the form of deleting, adding, or replacing some performance measures with others performance measures or just changing the priority of some performance measures. A performance measure which was classi"ed as high priority may move to

Fig. 3. Evaluation manufacturing strategy performance.

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U.S. Bititci et al. / Int. J. Production Economics 69 (2001) 15}22

Table 2 Sensitivity analysis of manufacturing strategy performance Probability pessimistic 0.143 1.000 0.000 0.000 0.433 0.530 Preferred strategy. Probability normal 0.286 0.000 1.000 0.000 0.000 0.000 Probability optimistic 0.571 0.000 0.000 1.000 0.567 0.470 Priority innovator 0.485 0.586 0.533 0.435 0.500 0.515 Priority of customiser 0.515 0.414 0.467 0.565 0.500 0.485 Strategy to adopt Mass Innovator Innovator Mass Either Innovator

other classes because of changes in the internal or external environments of the business. The QMPMS can cope with the dynamism through the sensitivity or what-if analysis. For example, for the manufacturing strategy evaluation explained earlier, the actual level of demand cannot be known in advance. The judgement of the probability of occurrence of low, average, and high demand are based on the information available at the time of evaluation. The judgement may change some time later if more information is available. Based on the current judgement, the priority (performance) of mass customiser strategy is better than the priority (performance) of innovator strategy. However, it is important to analyse further how the performance will change if the probability of demand level changes. Again the AHP software could be used to evaluate the sensitivity analysis. The results of such analysis, based on the model presented earlier, are illustrated in Table 2. If the probability of low demand is 100%, the performance of the innovator strategy will be better than the performance of the mass customiser strategy. While, if the probability of high demand is 100%, the Mass Customiser strategy will perform better than the Innovator strategy. Finally, if the probability of the occurrence of average demand is 100%, the performance of Innovator strategy will be better than the performance of mass customiser strategy. In general, if the probability of the occurrence of low demand is greater than 43.3%, the performance of innovator strategy will be better than the performance of mass customiser strategy as indicated by Table 2. The sensi-

tivity analysis can also be carried out on changes of the impacts of performance criteria on performance under di!erent scenarios.

5. Discussion and conclusion A quantitative model for performance measurement systems, with an example of its application to strategy management has been presented. Using the QMPMS, factors a!ecting performance can be identi"ed and their e!ects quanti"ed. The application of the model to evaluate the performance of alternative manufacturing strategies shows that the e!ects of multidimensional factors on performance can be aggregated into a single dimensionless unit (priority). The example presented in the paper is highly simpli"ed. The evaluation, in practice will be more complicated as all important factors a!ecting the performance of manufacturing strategy will need to be included in the model, and the interactions among factors should be considered and agreed. An important bene"t gained from the QMPMS approach is that the interaction of the factors can be clearly identi"ed and expressed in quantitative terms. This identi"cation will bring us one step forward in understanding the dynamic behaviour of factors a!ecting performance. However, to gain valid results, managers using AHP technique should be aware of &rank reversal' phenomenon, for which AHP has been criticised [15}19]. Some potential problems might be encountered in applying the QMPMS approach. The "rst,

U.S. Bititci et al. / Int. J. Production Economics 69 (2001) 15}22

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relates to managers' reluctance in completing in the pair-wise comparison questionnaires, particularly if the model involves identi"cation and quanti"cation of a large number of factors a!ecting performance. Consequently, the number of pair-wise comparison questionnaires will be quite large and completion of all the questionnaires will be time consuming. Distributing the questionnaires to several people who have a good understanding and knowledge of the business and subject can eliminate this problem. The second problem of the QMPMS application relates to achieving a single judgement in pair-wise comparison if more than one person is involved in completing in the questionnaires. Even though Saaty [20] provides formulae for computing the priority of group judgement using geometric mean, achieving consensus among the members of the group seems better than just using the geometric mean. Several discussions may be required to elaborate the real situation before a general consensus judgement over a particular issue can be achieved. Cognitive Mapping is also an e!ective tool which could be used to elaborate the problem. The QMPMS approach also facilitates the production of performance reports, which integrate several multidimensional measures into a single performance index. Furthermore, companies operate in a dynamic environment; consequently performance measurement is a dynamic process. This means that the priorities and criticality of performance measures will change over time as the internal and external operating environments of the business change. At a particular company, performance measures which are critical today, could change after a period of time, to become trivial performance measures. It is important to recognise these changes as soon as possible so that the basis of the quantitative model for the performance measurement system can be changed accordingly. However, changes of some factors up to a certain level would have no signi"cant e!ects on performance measurement and the current performance measurement system would not need to be changed. The sensitivity analysis available through the QMPMS approach can be used to identify when to review and change the

structure, content and priorities within a performance measurement system. Finally, the paper demonstrated the theoretical feasibility of using the QMPMS approach and particularly the use of the Analytical Hierarchy Process (in the form of ExpertChoice Software) in evaluation of the suitability and sensitivity of several strategic choices through quanti"cation of the relationships between performance measures and factors a!ecting performance. References
[1] D.A. Garvin, Competing on the eight dimensions of quality, Harvard Business Review (November}December) (1987) 101}109. [2] G. Stalk, Time } the next source of competitive advantage, Harvard Business Review (July}August) (1988) 41}51. [3] D. Gerwin, An agenda of research on #exibility of manufacturing processes, International Journal of Operations and Production Management 7 (1) (1987) 38}49. [4] N. Slack, The #exibility of manufacturing system, International Journal of Operations and Production Management 7 (4) (1987) 35}45. [5] R.S. Kaplan, D.P. Norton, Translating Strategic into Action } The Balanced Scorecard, Harvard Business School Press, Boston, 1996. [6] K.F. Cross, R.L. Lynch, The SMART way to de"ne and sustain success, National Productivity Review 8 (1) (1988}1989) 23}33. [7] J.R. Dixon, A.J. Nanni, T.E. Vollman, The New Performance Challenge: Measuring Operations for World Class Competition, Dow Jones-Irwin, Homewood, IL, 1990. [8] S. Globerson, Issues in developing a performance criteria system for an organisation, International Journal of Production Research 23 (4) (1985) 639}646. [9] U.S. Bititci, A.S. Carrie, L. McDevitt, T. Turner, Integrated performance measurement systems: A reference model, Proceedings of IFIP - WG 5.7 1997 Working Conference, Ascona-Ticino-Switzerland, 1997, pp. 15}18. [10] P. Suwignjo, U.S. Bititci, A.S. Carrie, Quantitative models for performance measurement system, International Journal of Production Economics (March 2000). [11] J.G. Miller, A. Roth, A taxonomy of manufacturing strategies, Management Science 40 (3) (1994) 285}304. [12] M.T. Sweeney, M. Szwejczewski, Manufacturing strategy and performance: a study of the UK engineering industry, International Journal of Production Managment 16 (5) (1996) 23}41. [13] M.T. Sweeney, M. Szwejczewski, The search for generic manufacturing strategies in the UK engineering industry, in: C.A. Voss (Ed.), Manufacturing Strategy: Operations Strategy in a Global Context, London Business School, London, 1996, pp. 659}664.

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U.S. Bititci et al. / Int. J. Production Economics 69 (2001) 15}22 [18] P.T. Harker, L.G. Vargas, Reply to &Remarks on the analytic hierarchy process' by J.S. Dyer, Management Science 36 (3) (1990) 269}273. [19] S. Schenkerman, Avoiding rank reversal in AHP decision support models, European Journal of Operational Research 74 (1994) 407}419. [20] T.L. Saaty, Decision making with dependence and feedback } The Analytic Network Process, RWS Publications, Pittsburgh, 1996.

[14] K.B. Walker, Corporate performance reporting revisitedthe balanced scorecard and dynamic management reporting, Industrial Management and Data Systems 96 (3) (1996) 24}30. [15] V. Belton, T. Gear, On a short-coming of Saaty's method of analytic hierarchies, Omega 11 (3) (1982) 226}230. [16] T.L. Saaty, L.G. Vargas, The legitimacy of rank reversal, Omega 12 (5) (1984) 513}516. [17] J.S. Dyer, Remarks on the analytic hierarchy process, Management Science 36 (3) (1990) 249}258.

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...One of the first schools of management, the classical management theory, developed during the Industrial Revolution when new problems related to the factory system began to appear. Managers were unsure of how to train employees. A large amount of the non-English speaking immigrants or dealing with increased labor dissatisfaction caused managers to test solutions. According to Plunkett, Attner & Allen (2008) “The classical management focused on finding the “one best way” to perform and manage tasks” (p.38). This school of thought is made up of two branches: classical scientific and classical administrative. The scientific branch arose because of the need to increase efficiency and productivity. The emphasis was on trying to find the best way to get the most work done by examining how the work process was actually accomplished and by paying close attention to the skills of the workforce. The classical scientific school got its roots to several contributors, including Frederick Taylor, Henry Gantt, and Frank and Lillian Gilbreth. Whereas scientific management focused on the productivity of the certain individuals, the classical administrative approach emphasizes on the total organization. The emphasis is on the development of managerial principles rather than work methods. Contributors to this school of thought include: Henri Fayol, Max Weber, Mary Parker Follett, and Chester I. Barnard. During World War II, mathematicians, physicists, and others joined together to solve...

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Management

...2.4 The Environmental Management System (EMS) application in the related industries. How it can improve the environmental performance of business? Example. 2.4.1 THE ENVIRONMENTAL MANAGEMENT SYSTEM (EMS) Definition: the environmental management system (EMS) refer to one part of the comprehensive management system that relate to organizational structure, planning activities and documented manner, it includes planning, implementation, checking, management review and environmental policy. An environmental management system (EMS) 1. It is environmental performance improving tool. 2. It is effective way to manage organizational companies. 3. Manage organizations to solve environmental problems, like allocation of resources, assignment of responsibility and ongoing evaluation of practices, procedures and processes. 4. Manage the long-term or short-term environmental impact of products service and processes for organizations. 5. Continual improvement is emphasis. EMS Model Plan Act Do Check Step 1: plan (planning) Definition: planning is a way of establish objectives and processes requirement. In order to implement ISO 14001, the first step is suggestion, to help to classify all the current or future operation elements. It includes environmental aspects, compliance, objectives and targets, environmental management programs (EMP). Business firms should plan for environmental protection. They need to plan their current operation or even future operation. The...

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Management

...Management is universal in the modern industrial world. Every industrial organization requires the making of decisions, the coordinating of activities, the handling of people, and the evaluation of performance directed toward group objectives. In addition, our society simply could not exist as we know it today or improve its present status without a steady stream of managers to guide its organization. Peter Drucker makes this same point in stating that effective management is quickly becoming the main resource of developed counties and the most needed resource of developing ones (Certo, 1986). In short, management is very important to our world. Then, what is management? This essay will discuss this topic as following. It has to be recognized that the definitions of management are extremely broad. Harbison and Myers (1959) offered a concept for emphasizing a broader scope for the viewpoint of management. They observe management as an economic resource, a system of authority, and a class or elite from the view of the economist, a specialist in administration and organization, and sociologist respectively. Henri Fayol, “the father of modern management theory,” formulated fourteen principles of management. Hugo Munsterberg applied psychology to industry and management. Max Weber is known for his theory of bureaucracy. Vilfredo Pareto is considered “the father of the social systems approach.” Elton Mayo and F.J. Roethlisberger became famous through their studies of the impact...

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