Monitoring Performance is About 2 Comparisons

July 7, 2015 by Stacey Barr

When we monitor performance measures, it can seem very natural to analyse the data in a variety of ways, like comparing performance between workgroups or business units, or disaggregating the performance measure based on variables like month of the year, day of the week, work shift, geographical location or customer segment. But really what we are doing is diluting the information we are getting from our performance measures.

analysing a question markGenerally the analysis we do is driven by what might be interesting or familiar to us. The diving straight into analysis without first thinking about the questions we’re really trying to answer.

When we look at performance measures there are really only two questions that we need to ask first and foremost. The first question is how does current performance compare to the past? The second question is how does current performance compare to where we want it to be?

These are the two questions that matter, because monitoring performance is essentially about monitoring change over time relative to an ideal change over time.

The first question, how does current performance compare to the past, helps us work out if performance has responded to the actions we’ve taken to get it to improve. The second question, how does current performance compare to where we want it to be, helps us assess whether we are doing enough of the right action to lift performance to the level we want it to be at.

So the first comparisons we’re interested in with each performance measure are current compared to past and current compare to desired. Any other comparison, like comparing geographical locations or customer segments or business units, are comparisons that may be useful in understanding or explaining the way that performance is changing over time. They are part of cause analysis not performance monitoring.

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  1. Tom G says:

    Hi there – thank you for the reminder – it is often hard not to find the differences interesting. We just rolled out a new implementation of a CRM. There are system faults we are monitoring for and as I have looked into these, many of them seem to be the differences between training teams and how the lesson is given …or heard in different cultures. But keeping the big picture in mind as we want to make these go away is key to working with the IT specialists.

    Hope you get over your crash soon – sounded spectacular. “They” say mountain biking is the sport where you are guaranteed a crash at some point in your riding tenure. I separated a shoulder…. FYI, dictation software was great for email while my arm was in a sling…if you can find one that speaks Aussie,

  2. Mike Butler says:

    Succinct and to the the point – and a very important point it is! Measuring results is only useful if it helps one understand why something happened in the past and informs the future!

    • Stacey Barr says:

      Hi Mike, and thanks for your comment. Surprisingly not many people think of measures in this role, and use them just to judge. Hence the fear associated with measuring what really matters, hey?

  3. Re: “how does current performance compare to where we want it to be” – this is an area where managers become difficult to manage.

    Let’s imagine that 2014 ended at 2% rejects. Placing a 95% confidence interval (based on last 12 months) around that gives us 1.7 – 2.3 as a predictor for 2015 – if we do nothing to improve or degrade the system. Management has plans to improve the system and sets the target for 2015 at 1.8%. And now, the problem begins. Performance is reported monthly. If the month is above 1.8%, explanations are required – even in January, when the improvement plans haven’t had time to take hold! Normal variation is not considered. After all, 1.8 translates into a CI of 1.5 – 2.1! It’s most frustrating to have to explain (make excuses for!) why the yearend target hasn’t been met by the performance of a particular month – when we don’t even expect to be there yet!

    I think the question just might be, what is current performance – this month’s value or a rolling 12 month average? I think the latter.
    Comments welcomed.

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