But who knows the Rule of 5? No one, because I made it up. My rule is one higher than the most rule LC has. So does that makes me one higher? I don’t know, I’m just a simple cataloger doing his best. You decide.
As I’ve said a million times, (and will say it more…) Emflix was a lot smaller than Netflix. That is, whereas the Emerson Library had some 3000+ DVDs, Netflix has some 93,000+ (according to them). One of the things that means is that while it can populate its numerous genres and categories, Emflix struggled to catch up. I started noticing subsubgenres which had a single item and I thought it would be disappointing to users to click through to a subsubgenre only to discover that their options were nearly non-existent.
So I instigated the Rule of 5. Unless a subsubgenre had 5 or more films in that category, it wouldn’t be used. This first meant running a quick little count on number of films per subsubgenre.
I commented out all the subsubgenres which had fewer than 5 films so they wouldn’t be taken into account during the transformation into the interface.
Trying to think ahead for once, I realized that as movies were added to the Emerson collection, some of these commented out subsubgenres may make it up to the required 5.
Thus, I continued to record the subsubgenres which i’d commented out when I encountered them in new films while also implementing a count on the commented out subsubgenres. When they hit 5, ta-da! Un-commented and returned to production.
(The Rule of 5 also applies to non english languages, but we’ll get to those later…)