Good question @Emre.
We are always asked to come with our clients when it is already decided to continue working with DWH; therefore, an excuse is not necessary, although we were asked to study ROI after sometimes justifying the project!
Following @Jai's comment, even if the KPI toolkit / toolbar is well selected / designed, if there is no business culture that can take / implement actions from key performance indicators, the ROI will be obvious. Iโm not sure that, unfortunately, there will be an average percentage of ROI for a particular KPI, since it too depends on the industry / country / culture / economic conditions.
The easiest way to show ROI in DWH projects is through procedural improvement. This is mainly due to the effectiveness of reporting.
- Find out about the current man-hours for running reports - some of our customers have had reports that run through excel related books that produce several man-days (!) To create.
- play reports in DWH
- See which saved man hours
This is the simplest material (ยฃ) benefit that can be obtained, and some of our DWH projects were fully paid for at the expense of the salary saved when creating the report.
I also like @OpeningBrace lists, but it will be difficult for them to get heavy% ROI from them.
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