attributes and associations.
c) Solution: Organize the structure of the information
contained in the dataset following object-oriented criteria
(classes, attributes and associations) but also hiding technical
aspects to the user (data types, database technical
specifications). This solution deals with Challenge 1.
d) Motivation: The analysis based on the structure of
information is a common practice in data-analysis
applications. For instance, the user can see attributes of
different classes in order to decide whether or not the
comparison of these classes is interesting and what criteria can
be used for the comparison.