Striking effectively- This means how many legal blows a fighter lands upon their opponent. Strikes that continue to the immediate end of the match, such as power shots and knockdowns, are worth more than those that deal cumulative damage.
Grappling effectively- This includes how successfully a fighter uses wrestling and grappling to attack their opponent, this includes takedowns. Takedowns should only be judged as successful if the fighter uses them to establish an attack. Fighters are not judged on whether they are on top or bottom when grappling, but instead how they use these positions in the attack.
Aggressiveness used effectively- This means how aggressively a fighter attempts to finish the fight. This and following criteria should only be used if the judges score the previously two completely equally.
Fighting area control- This means how successfully a fighter manages to dictate the pace of the match and their position within the octagon. This is an area that should rarely be assessed, as the previous criteria take precedence over this.
The last 2 only matter if the fight is even based on the first 2. Just being on top doesn't matter as stated in "grappling effectively". You need to use it to attack. Oliveira attacked with a tight submission attempt, Arman didn't get off any damaging shots or sub attempts in rd 3 from my memory. Arman did outland Oliveira tho so that's why it's tough. Arman only landed 6 strikes on the ground in rd 3 even tho he had well over 2 minutes of top control... Is that considered effectively attacking or doing just enough to not get stood back up? Idk... hard rd to judge, Arman landed more but Oliveira had the biggest moment of the rd by far.