The ideas developed in the previous chapters can now be drawn together into a general
procedure for a first-leveldata model design. The description first-levelis used because
the design will need further work to transform it into a final implementation.
So far we have concentrated mainly on data analysis issues, that is on the properties
of the data which exist independently of the transactions which may operate on the
data. In addition to data analysis, the first-level design procedure involves functional
analysis, where the latter term refers to the analysis of the transactions which the data
model must support. ...
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