We describe these documents next.
??? Query.requirements.document: Contains all the queries obtained in phases
I to IV, ordered by global priority. Each query is qualified as follows: a value
of ???1??? means that the query can be answered with the information contained
in the data sources; ???2??? means that the query involves values not in the data
sources, thus, it cannot be answered; ???3??? means that a query ???close??? to the
original one can be answered with the data available in the sources (e.g., modi-
Data Quality-Based Requirements Elicitation for Decision Support Systems 8
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission
of Idea Group Inc. is prohibited.
fying the required granularity or the required accuracy). In the ???Los Andes???
project, queries Q1 to Q3 were rated ???1.???
??? DSS.requirements.document: Summarizes all the requirements collected
during the process. Contains, for each query: the query identifier, the name of
the user who specified the requirement, the query expressed in English, the
same query after disambiguation, the query frequency, the query??™s global priority,
and the expected response time. For each data attribute associated to each
query, the form includes the identifier in the data dictionary, description, name
to be displayed when showing the data, and all the quality conditions required.
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