In this study, it has been carried out to compare the required repair time observed at a domestic workshop and the calculated time from main foreign estimating systems (Mitchell, Audatex) with 9 kinds of parts-exchange & painting works, which has the highest frequency in repairing damaged imported vehicles. As a result, the noticeable difference has been found between the observed repair time and the calculated repair time from Mitchell, Audatex respectively.

This noticeable gap is possibly caused by some reasons like differences of imported vehicle industry and environment among countries, the original characteristics of each domestic and foreign estimating system, and distinction of unconstructed work procedure like painting in each country. The essential cause of this gap is due to the absence of the criteria for standard repair time optimized for domestic imported vehicle workshop environment.

Even though establishing the objective criteria for standard repair time is the key factor of calculating the accurate repair time, domestic imported vehicle industry haven’t made the clear criteria acceptable for both insurance companies and repair factories, which has caused the continuous complicit among the relevant companies. To prevent those social and economic loss among vehicle manufacturers, insurance companies and repair factories, which occurs in this circumstance, the obvious domestic criteria for standard repair time should be established from now on.

To do this, it is necessary to optimize the main foreign estimating systems (Mitchell, Audatex) after analyzing the difference between domestic repair environment and those systems. How Japan has made JIKEN through adopting and optimizing MYSBY in Sweden is a good sample and this study can be the starting point which sheds light on the difference between domestic repair environment and those systems.

It can be done to establish the objective domestic criteria for standard repair time under the process of social consent and verification among the relevant industries like defining common repair-task process and the formula for repair-time in each type, foundation of official verification agency and so on.