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تحقیق تخصصی (زبان اصلی)؛ میزان کارآئی در شرکت های سرمایه گذاری کوچک و متوسط انگلیسی: نتایج تحقیق Performance measures in English small and medium enterprises: survey results Sérgio D. Sousa, Elaine M. Aspinwall, A. Guimarães Rodrigues The Authors Sérgio D. Sousa, Elaine M. Aspinwall, A. Guimarães Rodrigues, School of Engineering, Acknowledgements The authors are grateful to all the companies that participated in this survey. This work was partially supported by British Chevening Scholarships (Grant POR 0100109) and Fundação para a Ciência e a Tecnologia (Grant SFRH/BD/6939/2001). This paper is an extended version of the work presented at the First International Conference on Performance Measures, Benchmarking and Best Practices in New Economy – Business Excellence 2003, 10-13 June 2003, Abstract Purpose – To determine the current state of knowledge related to performance measures and their degree of implementation in small and medium enterprises (SMEs) in Design/methodology/approach – The paper starts with a literature review and then goes on to discuss the methodology used. The survey is briefly presented together with the analysis of the resultant data. General opinions regarding performance measurement in English SMEs are described, including the most important measures and the biggest obstacles to the adoption of new ones. Hypotheses about differences between groups are tested and discussed. Findings – This work concludes that there is a gap between the theory/knowledge of performance measures and the practice in English SMEs. Training of employees and difficulty in defining new performance measures were highlighted as the major obstacles to the adoption of new performance measures. Research limitations/implications – The low response rate of the survey precludes the generalisation of the findings. Practical implications – Innovation and learning measures should be applied more widely. Originality/value – This paper is relevant to academics and SME managers because it supports the existence of a gap between the theory of performance measurement and its degree of implementation. In addition, it introduces both theoretical information on performance measurement, including that based on the balanced scorecard perspectives, and practical information from a survey conducted in English SMEs. Article Type: Research paper Keyword(s): Performance measures; Small to medium-sized enterprises; Balanced scorecard; Total quality management; Benchmarking: An International Journal Volume 13 Number 1/2 2006 pp. 120-134 Copyright © Emerald Group Publishing Limited ISSN 1463-5771 Literature review For the purpose of this research “performance measurement” (Neely et al., 1995) has been defined as the process of quantifying the efficiency and effectiveness of action, and “performance measure” as a metric used to quantify that action. Small and medium enterprises (SMEs) were taken to be those companies with less than 250 (50 for small ones) workers (Commission of the European Communities, 2003) and: no more than 25 per cent of the capital or voting rights were held by one or more enterprises which were not, themselves, SMEs; and the annual turnover was less than ∈40 m (∈7 m for small companies) or the total balance sheet was less than ∈27 m (∈5 m for small companies). Traditional methods of measuring a company's performance by financial indices alone have virtually disappeared from large organisations (Basu, 2001). Non-financial measures are at the heart of describing strategy and of developing a unique set of performance measures that clearly communicate strategy (Kaplan and Norton, 1992, 1996), and help in its execution (Frigo, 2002). Frigo (2002) reported the existence of a gap between strategy and performance measures, which failed to support the communication of strategy within an organisation. André and Saraiva (2000) noted that there was quite a large gap between available models and current company practices in Portuguese companies. Hudson et al. (2001) concluded that although there was a widespread acceptance of the value of strategic performance measurement amongst the SMEs that they studied, none had taken steps to redesign or update their current performance measurement systems. Many excellence models and performance measurement frameworks, like the EFQM (2001) excellence model, Kanji's business scorecard (Kanji and Sá, 2002), the performance prism (Neely et al., 2002), and the balanced scorecard (Kaplan and Norton, 1992), have proposed ways of using the TQM philosophy. According to Ahmed (2002), the most popular ones to have drawn the attention of researchers include the balanced scorecard and the EFQM. Kanji and Sá (2002) state, for example, that the new approach to performance measurement suggested in the balanced scorecard is consistent with business excellence and TQM. The balanced scorecard is relevant to both small and large organisations, however, neither a comprehensive literature review nor any empirical research exists on implementing the balanced scorecard in SMEs (Andersen et al., 2001). The interest, over the last decade, in TQM and quality awards has highlighted the importance of performance indicators in achieving quality excellence. Quality measures represent the most positive step taken to date in broadening the basis of business performance measurement (Bogan and English, 1994). Models of excellence and improvement initiatives based on TQM principles reflect the importance of not only complying to specifications but also to delighting an organisations' stakeholders. The relationship between TQM practice and organisational performance is significant (Samson and Terziovski, 1999), and TQM implementation correlates with quality performance (Brah et al., 2002), despite some contradictory cases (Shaffer and Thomson, 1992; Ittner and Larcker, 1997; Sterman et al., 1997; Wilbur, 2002). Many of the failures of TQM in small organisations are related to bad implementation strategies and processes (Hansson and Klefsjo, 2003). Wood and Childe (2003) showed that it was possible to establish relationships between process improvement actions and performance requirements. The adoption of the process approach to quality management systems (QMS) was one of the most important aspects of the year 2000 revisions of ISO 9001 and ISO 9004 (Hooper, 2001). The new ISO 9001 standard (ISO, 2002) requires fact-based decisions and continual measurement and improvement of performance results (Karapetrovic and Willborn, 2002). These changes have narrowed the gap between the requirements of a QMS and those of the EFQM excellence model. Both reinforce the need to measure not only the critical success factors of an organisation but also the satisfaction of its stakeholders, to allow and assure continuous improvement aligned with strategy. Juran and Godfrey (1999) and Campanela (1999) considered quality costs to be the main driver, when selecting quality improvement projects. This can also be done with the support of the balanced scorecard, making it a strategic management tool as suggested by Cobbold and Lawrie (2002). The EFQM (2003) recognises that organisations, on their journey to excellence, may show different levels of maturity. The selection of the best approach to measure the effectiveness of a system will ultimately be based on the maturity of the quality efforts, the type of organisation or process, and other TQM tools applied concurrently (Campanela, 1999). Brah et al. (2002) reported that the size of a company and the extent of its experience with TQM affect the rigor of implementation and the resulting level of performance quality. However, the nature of a company (manufacturing or service) does not seem to have a significant effect on either aspect. Hudson et al. (2001) concluded that a discrepancy between theory and practice was identified in the development processes employed by SMEs, including a lack of strategic forethought, lack of communication between managers and the lack of a structured process for development. They also suggest that there are substantial barriers to strategic PM systems' development in SMEs. Neely et al. (1995) pointed out that measurement is a luxury for SMEs – success and failure are obvious. They have concluded that the cost of measurement is an issue of great concern to managers in SMEs. Methodology The steps followed in this research are similar to those followed by Saraph et al. (1989) and Yusof and Aspinwall (2000b). Following a literature review, the subject of performance measurement was discussed with both academic and non-academic specialists and hypotheses were formulated. This provided the basis for the construction of a questionnaire which was pre-tested and revised. The final survey form was sent by e-mail, to privately owned SMEs in and industrial sectors). The data was analysed using the SPSS package v11.0. The reliability and validity of the questionnaire were also verified. A test for possible bias from respondents was analysed as suggested by Armstrong and Overton (1977). Survey The questionnaire consisted of three main sections: the company background, the level of knowledge about performance measures, and the use of specific performance measures. The first section was intended to determine general information like number of employees, sector of activity, number of clients, types of product made, whether a certified quality system was held, the level of TQM and quality measures adoption and confirmation that the company was indeed an SME. Each respondent was also asked to select, from a list of nine, the quality initiatives that had been adopted in their company. In addition, they were asked to state their company's strategic objectives to establish whether or not they adopt adequate performance measures to track their evolution. The second section consisted of 22 statements about the performance measurement system of the company, including aspects such as the company's strategy, the selection of performance measures, their implementation and the results. The respondents were asked to rate their degree of agreement with each statement according to a five-point Likert scale from 1 “strongly disagree” to 5 “strongly agree”. Zero was added in case of doubt. This section also contained a question to determine the most important performance measures used in the company, and one for the obstacles likely to be encountered if adopting new ones. The actual criteria that allow companies to win new orders, as suggested by Neely et al. (1994), were also assessed. The balanced scorecard (Kaplan and Norton, 1992, 1993) was chosen as the basis for the third section of the questionnaire mainly because of its simplicity, general acceptance among practitioners and researchers, and its close association with strategy (Kaplan and Norton, 1996). The objective of this section was to investigate the importance and use of different performance measures. A Likert scale similar to that used in the second section was used to rate the importance and the use of each measure. Questionnaire reliability and validity The reliability of the questionnaire, which measures internal consistency, was studied through Cronbach's α. This method allows for the calculation of the α coefficient if one variable is removed from the original set, making it possible to identify the subset that has the highest reliability coefficient. If all the results are above 0.7, the scales are judged to be reliable. In the second section, of the questionnaire, all four groups (components) were considered reliable after deleting 2 of the 22 statements (variables). The α coefficients varied between 0.744 and 0.890. Measures in third section were organised as suggested in the balanced scorecard, and as can be seen in Table I, all groups of measures were considered reliable. Within the customer measures group, delivery was not considered reliable, and therefore, was removed from further analysis. This is not critical to this study because other components regarding customer performance measures are being considered. Content validity is always subjectively evaluated by the researcher (Churchil, 1979; Saraph et al., 1989). An instrument has content validity if it contains a representative collection of items and if sensible methods of test construction were used (Yusof and Aspinwall, 2000b). It is strongly believed that the second and third sections of this survey instrument have content validity as they were well received by the pilot respondents and by several academics and company managers who assessed them. Construct validity was tested for the second and third sections using principal components analysis. Each measure or variable within a component should have a significant correlation with variables of the same component and low correlation with others (Hair et al., 1998). The objective of construct validity analysis is to verify if all the statements that translate the concept under study are unifactorial. If this happens the group is considered homogeneous. In the second section, only one variable was deleted to assure that all groups were unifactorial (Table II), i.e. in each group only one component was extracted, thus all groups were considered homogeneous. The Kaiser-Meyer-Olkin (KMO) indicator, which is a measure of sampling adequacy and should not be lower than 0.5, was also verified in all cases. Variables within each component gave correlations higher than 0.635 in all cases. Eight variables out of 61 were deleted in the third section to make each group unifactorial (Table III). The results indicate that in both sections each set of variables constitutes a homogeneous group. Thus each one translates one concept. Predictive or criterion-related validity was tested as suggested by Owlia and Aspinwall (1998) and Yusof and Aspinwall (2000a). A greater use of performance measures should correspond to a greater understanding of the company's performance measurement system. A linear regression analysis was performed on the overall use of performance measures (from the second section) against the components identified in the third section. The adjusted R2 value was 68.2 per cent, suggesting a good fit. To improve this value, a reduction in the number of factors was considered. Using the stepwise method to select the variables to be added to, or removed from, the regression model, the adjusted R2 value increased marginally to 68.6 per cent. The overall perception of the performance measurement system (OPPMS) can be expressed through the following model: Equation 1 A residual analysis was carried out to validate the assumptions of normality, constant variance and zero mean. The model suggests that English SMEs report a higher use of performance measures if they use financial, quality performance and training of employees' measures. The negative relationship associated with the use of customer performance and innovation measures, suggests that these measures may not be perceived as performance measures. The results, overall, show that the instrument reflects predictive validity. Results The questionnaire was sent to 400 companies and 52 were returned completed. Four of the respondents were not classified as SMEs resulting in a response rate of 12 per cent. This is low for a postal survey and so caution must be exercised when generalising conclusions. The returns were organised into two groups to test possible bias of respondents. No bias was found and so it can be assumed that non-respondents would have similar characteristics to the respondents. Figure 1 shows the breakdown of respondent companies by number of employees. The wide range of activities covered by respondent companies is shown in Figure 2, and includes SMEs from the service sector. The majority of respondents were certified to ISO standards (Figure 3), but only 14 per cent had completed the transition to ISO 9001:2000. Continuous improvement or total quality management can be implemented following a Plan-Do-Check-Act (PDCA) cycle. Thus it is fundamental in the planning phase to define activities to improve strategic objectives, which will then be monitored. Respondents selected profitability (53 per cent) as the main strategic objective followed by quality (22 per cent) and flexibility (10 per cent). When asked about the criteria that most helped their companies to win orders, manufacturing quality came in first followed by price (Table IV). It appears that despite other important factors, the quality/price relationship is still of major importance for English SMEs and cannot be forgotten when initiatives are deployed within an organisation. Table V presents the quality initiatives already implemented in the respondents' companies. Setting up a quality department can be explained as a result of ISO standards or simply as a means of implementing the necessary activities to improve quality and to track their evolution. As employee involvement to improve quality and establishing measures of quality progress received 65 and 46 per cent, respectively, it is expected that approximately half of companies use measures to assess quality progress. The same data allow us to conclude that statistical process control, an efficient tool to understand the variation of a process is used only in 23 per cent of companies. General opinions about performance measurement were asked on strategy, selection of measures, implementation and results (Figure 4), as all of these are important in the process of continuous improvement. An ANOVA test on the four means showed a significant difference between them at the 5 per cent level. The assumption of homogeneity of variances was verified through Levene's test. The results group has the lowest score, meaning that the consequence of using performance measures is not well understood, and a balance amongst these groups should result in better performance measurement systems. Obstacles to the adoption of new performance measures in SMEs include computer systems issues, lack of top management commitment and the existing accounting system (Bourne et al., 2000; Neely et al., 1997). The respondents considered (Figure 5) training of employees as the most important obstacle, followed by difficulty in defining new measures, which could be the result of lack of skills of employees and leadership, confirming the importance of top management commitment. The cost of the performance system must always be analysed and is considered of great concern to SMEs. According to the literature, companies should adopt a balanced use of the four groups of measures, as organised in the balanced scorecard. However, respondents considered some measures more important than others, as shown in Figure 6. It is curious to note that on-time delivery is not perceived to be a relevant criterion to win new orders (Table IV) but it is considered the most important performance measure. This may be because, if a problem occurs in the process or with the supplier it will be reflected in this measure. In-process quality was perceived to be the second most important measure. Balanced scorecard Grouping all the performance measures together, importance was rated by the respondents as 3.55, on average, and use as 3.18. This implies that although the respondents considered performance measures important, they are not used accordingly. After verifying the homogeneity of the variances, an ANOVA was performed. This resulted in a p (or significance) value of 6.3 per cent, which, being just larger than 5 per cent, was too large to be able to conclude a real difference. However, looking at the four groups separately, financial measures are considered the most important and are widely used, while innovation and learning measures are rated less important and are less used (Figure 7). The four groups of measures analysed in this study were assessed to find out if there was a gap between the perceived importance and the practice or use for each group. Tests were performed, using the ANOVA with a 5 per cent significance level, to see if there were any differences between the means of: importance and use of each group of measures; use for companies from the service and industrial sectors; use for SMEs; and use for companies certified according to a quality standard and others. The group internal business process exhibited a significant difference between the importance and use of productivity measures, thus there are measures in this group that should be put to more use, such as “output per employee or per labour-hour”, “time spent on each stage of product development”, “time to process an operation”, “number of errors per unit”, “number of billing errors per unit”, “production volume”, “absenteeism”, and “injury lost days”. There was insufficient evidence to conclude differences between the importance and use of quality performance measures, meaning that if they are considered to be important they are being used. The same was also true for the financial measures group. A significant difference was found between the importance and use of both: Employee training measures (i.e. in the innovation and learning group), which include measures such as “quality related training provided to employees”, “percent of employees who have quality as a major responsibility”, “surveys of employee satisfaction/attitudes” and “improvement of employee skill/knowledge levels”. Customer requirement measures (i.e. the customer group), which include measures such as “ability to adapt or tailor products to customer needs”; “response time to customer requests for ‘specials’”; and “accuracy of interpretation of customer requirements”. Again, there was insufficient evidence to suggest differences in the level of use of performance measures between industry and service enterprises, and between SMEs. However, in this sample, medium enterprises make greater use of internal business process and financial measures while for the small ones it is the use of innovation and customer measures. Companies certified to a quality standard and those that were not, did not show any significant differences between their mean levels of use of performance measures. Levene's test for the homogeneity of variances was violated in customer performance measures. Figure 8 shows this difference in variance, suggesting that SMEs working to a quality standard are more likely to adopt customer performance measures. A similar conclusion can be drawn from other measures but this was the only case that was statistically significant. Conclusions The study investigated the current level of knowledge of performance measures and their degree of implementation in English SMEs. It identified differences between some groups of companies and presented the biggest obstacles to the introduction of new measures. Results indicate that the SMEs surveyed, recognise the importance of the performance measurement system but their level of use was significantly lower. This implies that there is a gap between theory and practice, which could be considered an improvement opportunity for English SMEs. Performance measures can be used to influence behaviour and, thus, affect the implementation of strategy (Neely et al., 1994). The OPPMS as part of a continuous improvement process, linking strategy to results is not balanced, meaning that this cycle is not fully understood by SMEs' managers. Although it is not necessary to use all the measures suggested in the questionnaire, an alignment between strategy and performance measures makes them more effective (McAdam and Bailie, 2002). Training of employees and difficulty defining new performance measures were highlighted as the most important obstacles to the adoption of new performance measures. This may reflect a lack of skills by employees and a difficulty in understanding the process. Only a minority of the respondent SMEs were applying statistical process control and cultural change programmes. The data collected from this survey suggests that there are no significant differences in the use of performance measures between industry and service enterprises, and between SMEs. However, this requires further study, since one limitation of this study was the low response rate, which precludes a generalisation of these findings. Overall, financial measures were the most widely used, while innovation and learning measures were rated less important and were less used. The most important performance measures were not consistent with criteria to win new orders. Based on the data collected, a gap was detected between the importance and use of some measures suggesting that SMEs should use more productivity, employee training and customer requirement measures. In particular, the level of use of innovation and learning measures should increase if SMEs can resolve the major obstacles, identified in this work, to the adoption of new measures: training of employees and difficulty defining new measures. This research is part of a PhD programme to develop a simple and easy-to-use framework to allow SMEs to create their own performance measurement system, aligned with strategy, to allow the achievement of pre-determined goals. Equation 1 Figure 1 Number of workers Figure 2 Sectors of activity Figure 3 SMEs' quality assurance system Figure 4 Overall perception of the performance measurement system Figure 5 Obstacles to the adoption of new performance measures Figure 6 Most important performance measures Figure 7 Importance and use of the balanced scorecard Figure 8 Use of customer performance measures for SMEs working/not working according to a quality standard Table I Reliability of measures in the third section Table II Principal component analysis of the second section Table III Principal component analysis of the third section Table IV Criteria to win new orders Table V Quality initiatives adopted by English SMEs References Ahmed, A.M. (2002), "Virtual integrated performance measurement", International Journal of Quality & Reliability Management, Vol. 19 No.4, pp.414-41. 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(2000b), "Critical success factors in small and medium enterprises: survey results", Total Quality Management, Vol. 11 No.4/5 & 6, pp.S448-62. Corresponding author Sérgio D. Sousa can be contacted at: sds@dps.uminho.pt نظرات و پیشنهادات خود را با مدیریت سایت از طریق پست الکترونیکی؛
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