Basic solution - introduce ActiveRecord::Enum, as simple as possible 5 various steps to improve enums functioning Ultimate solution - wrap all improvements into one implementation

Wohl aber kann man das Vernünftige fördern, es anstupsen, es bei jeder Gelegenheit ein bisschen mehr bevorzugen als das Unvernünftige.

iterate products as quickly as they wanted

the level of effort required to completely reinvent a single online course to be adaptive

I made a number of adjustments based on midterm feedback

Again, though, if maximum recall is required, it is impossible in ranked retrieval to know what is omitted by new queries, whereas Boolean queries allow the user to control and modify the search until a satisfactory result has been achieved and they therefore also seem better suited to iterative searches.