Taking A Corrective Path Back to Conceptual Data Modeling A Corrective Path is a down-up path in the sequence of data modeling activities that happens when, during or at the conclusion of an activity, one or several issues are found that warrant the need to go back to a prior activity. Semantic or subtyping changes may cause to retrace back to the Conceptual Data Modeling activity and require to follow the sequence of activities from that point.
A few circumstances that don’t involve changing the data scope can cause the corrective path back to Conceptual Data Modeling to be taken. A common reason is adding subtypes to a supertype while the DSM shows only the supertype. This happens when new attributes are found to be needed that are specific to a subtype that had not been included. Adding subtyping grandchildren is another of these circumstances. Since a supertype can support more than one subtyping cluster, the need to create a new cluster using a different discriminator will also cause the use of this corrective path.