Meta Usage Report
The Meta Usage Report is an impact analysis utility that allows a user to determine the impact of changing or deleting relationships or properties for the types in EVA Netmodeler.
The tool allows you to list either a relationship type report or an attributes (properties) type report.
Relationship type report
Attribute (property) type report
This variant of the Meta usage report lists all the types that use a specified Named Attribute (property).
The Show Instances option causes the report to include a separate row for each item of the type that uses the
specified attribute, together with its current value. This provides a simple mechanism to determine whether the attribute
is actively used within the current data set, or if it is merely included in the type definition. In the example below we can
see that the Document Link property is used in the definition of the Venue type, but no items of that type currently use
this property. Therefore the impact of changing this property on this type appears to be minimal from a data content
point of view. Note that it is still possible for the property to be referenced in custom views, composite views and reports.
If so, those views or reports would need to be updated to reflect the changed meta model. We can also see that the
Document Link property is used in at least one Book item. Removing this property from the Book type would therefore result in the loss of some data.
|
