Say No More: Verbal Data Models

Click to learn more about author Thomas Frisendal. ”Nudge nudge, wink wink, say no more, say no more”. Says British Eric Idle in the third Monty Python’s Flying Circus episode, “How to Recognise Different Types of Trees From Quite a Long Way Away” from 1969. Indeed, it should not be necessary to say more, once […]

State of the Art of Data Modeling?

Click to learn more about video blogger Thomas Frisendal. When I googled “state of the art” “data modelling” (European spelling), I got: An Overview of State-of-the-Art Data Modelling – Events – ACSE – The An Overview of State-of-the-Art Data Modelling Data Modelling: Introduction and State of the Art – Springer Type Systems: Introduction and State of […]

Surrogate Keys: Paving the Way for Graph / NoSQL Data Models

Click to learn more about video blogger Thomas Frisendal. Since the mid-seventies many SQL-databases have been modeled using the concept of surrogate keys: Non-information bearing primary keys Used for join purposes (inter-table relationships) System generated (integer) values Not to be shown to end-users The advantage of using surrogate keys is guaranteed persistence, even across changes in […]

Artificial Intelligence vs. Human Intelligence: Hey Robo Data Modeler!

Click to learn more about author Thomas Frisendal. In the data space plenty of new terms are being coined (by marketing?) for handling data modeling, governance and quality issues: “data preparation”, “data wrangling”, “data catalogue” and “machine-based data harmonization” (™ of ClearStory Data). Do we need stuff like this? Definitely so. Today we need to move […]

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 […]

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