Studierende stehen vor dem LC und blicken lächelnd einer Kollegin mit einer Mappe in der Hand nach.

Exercise No. 43: Flyer (dfm)

This simplified E/R schema describes the "process" of offering flyers.

A student offers a flyer to a person; the flyer is designed by a designer who belongs to a marketing department. The "process" of offering flyers is controlled by an employee of a company which is responsible for the flyers. The time dimension consists of day, week and month.

Figure D.E.19.1 - "process" of offering flyers

Please identify the fact of interest and build the attribute tree. No attributes have to be pruned or grafted, but some of them cannot be used for aggregation in a meaningful way. Those should be tagged as non-dimension attributes in the fact schema.

Then derive the fact schema from the tree by defining dimensions, fact attributes and hierarchies and build a glossary for the fact attributes if there are any.

Please include an additional fact attribute counting the number of flyers.

Solution

This exercise is part of a case study: dfm - apa - log

Exercises List