What are supply chain performance measure systems?
Discuss two frameworks that are used in measuring the performance of supply
chains.
Ans : Last week I conducted another Interview for the empirical
part of my research. And we also discussed how to measure performance within
the SC. As it turns out, multiple measures, namely service, cost, working
capital are used. Sadly in literature many authors still focus on a single
measure only and I wanted to know more about it. So I read an article
by B. Beamon (Measuring Supply Chain Performance) to get an overview
over performance measures used and how to select the right one(s)
History of Supply Chain
Performance Measures
Supply chains consist
of many different companies and within those, various functions. So first
measures have relied on characterizing individual systems like production,
distribution, or inventory management. In literature the measures have often
been categorized into aspects of quality, time, flexibility, and cost.
But most often cost is used as an only measure or cost and another measure for
customer responsiveness is applied. Other more qualitative measures, like
customer satisfaction or concerning risk management, are seldom used due to
their restricted applicability in quantitative models.- inclusiveness (measurement of all pertinent aspects)
- universality (allow for comparison under various operating conditions)
- measurability (data required are measurable) and
- consistency (measures consistent with organization goals)
- If using only one performance measure make sure that it can adequately describe the performance of the system in focus.
- When using cost as (only) measure, be careful to include all necessary costs in the calculation. Pitfalls include cost of obsolescence or rework due to engineering changes
- Align performance measures with the strategic goals
Flexibility is harder to measure, Beamon details on a quantitative approach for measuring it, focussing on volume, delivery, mix and new product flexibility.
Measures are generally
thought of being effective if the following characteristics are fulfilled:
Performance Management
System
The last bullet point
highlights another topic: It is also important not only to focus on the
measures used, but also to reflect on the performance measurement system as a
whole. Especially, it is important to consider the effects of a specific
corporate strategy on the performance measures used. Thus there are several
caveats when evaluating options for performance measures:
Framework
Individual performance
measures are usually non-inclusive so the goal for a performance management
system should be to include more aspects. Beamon suggest to focus on measures
for resources ®, output (O) and flexibility (F) (see figure 1 and 2).
Examples
for resource measures are: total cost, distribution cost,
inventory cost.
Different
Aspects of Flexibility (Beamon 1999)
Conclusion
The use of simple performance measures is tempting, since
simple measures are more easily implemented into numerical models; however, by
limiting the scope of the performance measurement, these models ignore
important performance trade- offs.
So it is obviously
important to focus on meaningful measures. While reading the article I didn’t
quite understand the authors relation to profit as a performance measure.
Return on Investment for example is listed under the category cost-measures,
profit itself is listed under output. Neither is really correct if you define
profit as revenue minus cost since, profit affects both sides, resources and
output.
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