What is the usefulness of Entities Relationship Diagrams and Object Oriented Analysis Design?

solidcodes · August 30, 2015, 11:43am

Continuing the discussion from Trending algorithm in PHP?:

I’m working on a personal project that organizes songs uploaded by the frequency of votes in a certain amount of time, and maybe some sort of base score (probably how many likes something has, or plays). I’ve seen some trending/hot algorithms, but the problem is that they have downvoting, while my system does not. Can anyone give me insight on how to perform something like this in PHP?

This is my idea so far:
$s = $row['song_stat_plays'];
$s = $s + (2 * $row['song_stat_downloads']);
$s = $s * (3 * $row['song_votes']);
$TrendScore = floor(log(max($s,1)));

But if you want to be PRO.
Use E.R. for Database.
Use OOAD for PHP Logic Flow