3) Conglomerate IU.
a) Problem: Users need features to classify data
contained in a dataset.
b) Context of application: The user demands a dynamic
mechanism to classify a dataset by criteria.
4) Trend IU.
a) Problem: Users need features to deal with the
composition of elements within a dataset.
b) Context of application: The user demands to visualize
a dataset depending on the compositions of elements.
c) Solution: Organize the information in function of the
number of elements that are part of a specific criterion and
changes on their composition. This solution deals with
Challenges 3 and 4.
d) Motivation: The analysis based on composition allows
the user to reason out trends in a dataset. For instance, the user
can see how many entities belong to a specific class during
different moments.