Improving Expressive Power in Modeling Data Warehouse and OLAP Applications - Evolving Application Domains of Data Warehousing and Mining - page 40

Trujillo, J., Palomar, M., Gomez, J., & Song,
I. (2001). Designing data warehouses with OO
conceptual models. IEEE Computer , 34 (12),
66-75.

2

The detailed model description and formal-
ization can be found in Malinowski and
Zimányi (2008).

3

These hierarchies are also called hetero-
geneous (Hurtado & Gutierrez, 2007) and
non-onto (Pedersen et al., 2001).

Tryfona, N., Busborg, F., & Borch, J. (1999).
StarER: a conceptual model for data warehouse
design. Proceedings of the 2 nd ACM International
Workshop on Data Warehousing and OLAP, (pp.
3-8).

4

These are also called parent-child hierarchies
(Lachev, 2005; Niemi, Nummenmaa, and
Thanisch, 2001).

5

The ellipses in the figure represent members
that are not shown. Tsois, A., Karayannidis, N., & Sellis, T. (2001)

MAC: conceptual data modeling for OLAP.
Proceedings of the 3 rd International Workshop
on Design and Management of Data Warehouses ,
(p. 5).

6

We modify the instance of the Adventure-
WorksDW to represent this kind of hierar-
chy.

7

Several solutions can be used as explained
in Malinowski and Zimányi (2008).

8

We omit their descriptions; interested read-
ers may refer to Lechtenbörger and Vossen
(2003).

endnoteS

1

We do not refer to the correctness of the
AdventureWorksDW schema.