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IDERA Drives Business-Driven Data Architecture

Today’s enterprise IT environment most likely consists of a plethora of different database platforms, all of which must be supported across the lifecycle. How to streamline managing every aspect of the multi-platform database ecosystem? IDERA’s answer is to let it help out. Its acquisition last fall of Embarcadero Technologies’ ER/Studio Data Architecture solution and DB […]

Data Modeling: Why Not 3D?

Click here to learn more about author Thomas Frisendal. Data Models are meant to communicate structure of information to recipients, who need to understand it. But who are these recipients? In fact, they are human beings. Given that, we should choose our means of communication to be the most effective that we can find. Other […]

Beware of Symmetric Relationships

Click to learn more about author Michael Blaha. A symmetric relationship is a self-relationship with the same multiplicity and role name on each end. Symmetric relationships are acceptable for conceptual models. But they are problematic for logical and physical models – you should rework the model to eliminate them. An Example For an example, consider […]