From User Requirements to Conceptual Design in Data Warehouse Design - Data Warehousing Design and Advanced Engineering Applications - page 17

KEY TERMS AND DEFINITIONS Yu, E. (1993). Modeling organizations for in-

formation systems requirements engineering.
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Conceptual Model: A formalism, with a
given expressivity, suited for describing part of
the reality, based on some basic constructs and
a set of logical and quantitative relationships
between them
Extraction Transformation and Loading
(ETL): The process that enables data to be loaded
in the DW. It is usually carried out using special-
ized software and entails extracting data out of the
sources, transforming it to fit the business needs
and to match the quality requirements, and finally
loading it into the end target
Key Performance Indicator (KPI): Are fi-
nancial and non-financial metrics used to help an
organization define and measure progress toward
organizational goals
Life-cycle: The set of phases a software sys-
tem usually goes through from its conception to
its retirement.
Multidimensional Model: A data model opti-
mized for data access in a way that comes natural
to human analysts. A multidimensional model is
centred on a fact that is a focus of interest for the
decision-making process and can be monitored
through measures and dimensions.
User Requirements: The needs of the of
the stakeholders who directly interact with the
system

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Yu, E., & Mylopoulos, J. (1994). Understanding
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