- Define your Classes Of Service (COS – A concept welcomed in Kanban). A Class Of Service (COS) is just a type of production deliverable; each organisation has got its types but just to name a few we could consider amongst them: business deliverable, production bug fix, evergreening, maintenance of legacy systems, etc.
- Define a spreadsheet with three sections: one to collect detailed data per COS; one to calculate averages and one to define validation lists (in our case the only one is the list of COS)
An example of such spreadsheet can be found below:
The first worksheet contains the detailed data per COS and a graph which has been created using the average lead times per COS calculated in the second worksheet, shown below:
For this example, I also created a third worksheet containing a validation list for COS as shown below: