Kila moja ya mbinu hizi mbili lina sifa zake maalum. Wanatheolojia wa kalamu (Mutakallimoon) walianzisha Qawaa'id (kanuni) zilizotolewa katika matawi, ilhali Mafaqihi (Fuqahaa) walianzisha Qawaa'id zilizoongozwa na kutokana na matawi. Mbinu zote mbili zina sifa zake na umuhimu wake ambao haupatikani katika nyingine.

Each of these two methods has its own specificities. The Mutakallimoon established the Qawaa’id (principles) stripped from the branches whilst the Fuqahaa established the Qawaa’id guided by and derived from the branches. Both methods or approaches have their own merits and specificities that are not found in the other.

Baadhi ya waandishi katika Usool ul-Fiqh walichanganya mbinu zote mbili pale walipochukua yale ambayo kila mbinu ilijulikana nayo kwa sifa zake, huku wakiyaacha pembeni na kuyaepuka yale ambayo yalielekezewa ukosoaji.

Some of the writers in Usool ul-Fiqh combined both methods in the case where they took what each was distinguished by in terms of its merits whilst casting aside and leaving that which criticism had been directed towards.