Dab tsi yog qhov kev sib piv ntawm kev sib piv?
Dab tsi yog qhov kev sib piv ntawm kev sib piv?

Video: Dab tsi yog qhov kev sib piv ntawm kev sib piv?

Video: Dab tsi yog qhov kev sib piv ntawm kev sib piv?
Video: Txoj kev ua laib thaum kawg tsis tshuav dab tsi 3/23/2023 2024, Kaum ib hlis
Anonim

Cov ua khub - kev sib piv (UNI EN ISO 5495) xav txiav txim siab seb ob yam khoom sib txawv ntawm cov cwj pwm, xws li qab zib, crispness, yellowness, thiab lwm yam. kev sib piv implicates qhov "yuam kev" xaiv thiab yog li cov kws txiav txim plaub yuav tsum tau teb rau txhua rooj plaub.

Nyob rau hauv kev hwm rau qhov no, dab tsi yog ib qho kev sib piv kev sim?

Hauv kev txheeb cais, a ua khub txawv xeem yog hom ntawm qhov chaw xeem uas yog siv thaum sib piv ob qhov kev ntsuas los ntsuas seb lawv cov pejxeem txhais li cas txawv. Cov piv txwv zoo tshaj plaws ntawm a ua khub txawv xeem tshwm sim thaum cov ntsiab lus raug ntsuas ua ntej thiab tom qab kev kho mob.

Dab tsi yog qhov kev kuaj cov ntaub ntawv ua khub? A ua khub t- xeem yog siv los sib piv ob pejxeem txhais tau tias qhov twg koj muaj ob cov qauv nyob rau hauv uas kev soj ntsuam nyob rau hauv ib tug qauv yuav ua tau ua khub nrog kev soj ntsuam hauv lwm tus qauv. Kev soj ntsuam ua ntej thiab tom qab ntawm tib yam kev kawm (xws li cov tub ntxhais kawm kev kuaj mob xeem tau tshwm sim ua ntej thiab tom qab ib qho module lossis chav kawm).

Xav txog qhov no, txoj kev sib piv ua ke yog dab tsi?

Txhais : Paired Comparison Method Paired comparison muaj kev sib piv sib piv - piv txwv li, sib piv cov koom haum hauv khub los txiav txim seb qhov twg zoo dua lossis muaj qee theem ntawm qee yam khoom. LL Thurstone thawj zaug tsim txoj hauv kev tshawb fawb los siv qhov kev ntsuas no.

Dab tsi yog Paired Comparison scale?

Txhais: The Paired Sib piv Scaling yog a sib piv scaling txheej txheem uas tus neeg teb tau pom ob yam khoom tib lub sijhawm thiab raug nug kom xaiv ib qho raws li cov txheej txheem teev tseg. Cov ntaub ntawv tshwm sim yog ib txwm nyob hauv qhov xwm txheej.

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