BCS Exam MBP18 Topic 7 Question 21 Discussion

A company's electronic content management system was implemented last year, a business analyst has now been brought in to assess the business benefits of the system.

The analyst learnt that the project's business case was primarily built around the efficiency that paperless order processing would bring and that the project went well, but the expected business benefit have not all been realized. In the course of an investigation, it was found that the sales team are continuing to out hard copies of customer order.

Which element of POPIT did the project not fully consider?