5 Levels of Aggregation

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To measure a performance, there are four aspects that need to be considered namely, what are the performance targets, which factors are important, how they can be measured and which method to be used to compare target performance with the actual targets. The state of improvement in performance depends on what measures are taken (Slack & Lewis, 2011, p.221) There are five performance objectives: quality, speed, dependability, flexibility and cost, which used to decide the performance targets. The five performance objectives can be aggregated with multiple performance targets that articulate market requirement such as customer satisfaction, operations agility or productivity. Those multiple targets broadened to achieve market objectives or achieve financial objectives or even achieve overall strategic objectives. This idea is illustrated in Figure 1.1.The performance targets that are selected can be aggregated or detailed. When creating an effective performance measurement, it is very complex to balance between having few key measures and many detailed measures. The few key measures may be simple but will not reflect the full range of organisational objectives. While, the many detailed measures cannot be easily managed, but can express a degree of performance. To concede the difference between measures, an association was worked out between the competitive strategy, the key performance indicators (KPIs) and the detailed measures (Slack & Lewis, 2011, pp.222-223). Figure 1.1 Performance targets can involve different levels of aggregation (Slack & Lewis, 2011, p.223). The performance targets cannot be reached without balanced and appropriate performance measures. Without performance measure, you won’t be able to see the overall performance of a business and won’t be able to take the right decision on the right time. Performance measures are used to align business

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