The Separation Model – Part 23 – Classification Nuances

by Matt Petrowsky

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When I first introduced the concept of using a tagging model, via the classification of data, I only discussed one of a few possible options.

The first option I covered, related to any given element in your database (in this case a person), was the ability to associate multiple classifications, otherwise known as tags, to a person.

What ends up ultimately happening is the desire to have a singular classification for an element. For example, a person can be a student and a parent, but how many times is a student both a 1st and 2nd grader? While the first video discussed multiple tags per element, this video now discusses the singular classification.

Wow, ok, this sounds pretty simple. Multiple vs. singular, that's easy. The trick however is the nuance in how you set up the relationship and the methods you provide for interaction within the user interface.

Essentially, we're providing radio-button-like functionality using a popup menu which is tied into our tagging system. While you may not use this exact and specific implementation, there's always a great amount of information and knowledge you can gain from what is covered.

As with all things, it's knowing what can and can't be done which makes you a better FileMaker developer!