As with any gear in the game their stats are tailored to fit a class/role combination. There are a total of 10 basic gear types which match the 10 class/role combinations. Here is a listing specific for Biochem and implants. Other crafting skill will have a similar structure but different names.
It is important to know which roles use which kind of gear as it impacts the demand and you also need to know which stats will likely be useless for at specific class/role combo. As Accuracy is not used by healers, any Resolve, Rejuvenation or Cardio gear with a Accuracy prefix (see How Reverse Engineering Works for info on stat relations to prefix) will be less effective as one with Alacrity. Even though you do not have to known the preferred stats for all class/role combos to play your own character, you still need to know the rest in order to have an idea of the demand of certain items.
Below I have color-coded the optimal stats distribution green, lesser but still viable options yellow, and everything that does not fit the specific class/role red. Please comment if you think I have miss-colored anything.
This brings us from 140 to 50 potential profitable items and gives a more focused approach to data gathering and crafting selections.