After the facts concerning the original method have been accurately presented on the most appropriate type of chart, they should be examined critically so that ideas can be generated for an improved method. The questioning technique is the means by which the critical examination is conducted, each activity being subjected in turn to a systematic and progressive series of questions.
Baada ya ukweli kuhusu njia ya awali wamekuwa usahihi iliyotolewa kwenye aina sahihi zaidi ya chati, wanapaswa kuchunguzwa kwa kina ili mawazo unaweza kuzalishwa kwa njia bora. mbinu kuhoji ni njia ambayo mtihani muhimu ni uliofanywa, kila shughuli kuwa wanakabiliwa kwa upande wa mfululizo utaratibu na maendeleo ya maswali.