Starting Quality Assurance – Part 4
As promised last week we will talk about statistics in this blog. In the last blog, we talked about completing a deeper dive into a process that was identified as causing problems. Before we make any changes we have to gather some statistics to form a baseline. This can be a little difficult since it may not be obvious what we should be counting. However, here are some suggestions based on the process analysis.
- Is the process taking too long? Measure the length of time it takes (pick some obvious end point like when the process is started and when it is finished).
- Is the process being repeated with the same inputs because of failures? Count the number of repeats with the same data.
- Is there a long delay in the middle while external resources are assembled or contacted? Measure the wait time and make sure to remove it from total time the process takes.
- Are computer resources maxing out during the process? Enable a performance monitor and save the results.
Some of these will be guesses and some may need to be measured at a lower level to get more granular figures. But the idea is to identify items that are possible candidates for improvement.
Next blog: Act on the statistics.