Unit price validity check device, unit price validity check method, and unit price validity check program

摘要

PROBLEM TO BE SOLVED: To provide a unit price validity checking device, a unit price validity checking method, and a unit price validity checking program capable of checking the validity of a unit price at the timing of inputting a unit price in an estimate input. In this embodiment, (1) a cost information table including a record having unit price identification data and an actual unit price is referred to, and a lower limit reference is made for each record having the same unit price identification data based on the actual unit price. A value and an upper limit reference value are calculated, and (2) a unit price setting master including a unit price identification data and a lower limit value and an upper limit value set based on the calculated lower limit reference value and upper limit reference value, and a quotation input screen. Based on the entered unit price identification data and estimated unit price, obtain the lower limit and upper limit of the unit price setting master that is associated with the entered unit price identification data, and (3) estimate entered on the estimate input screen It is checked whether the unit price is within the range of the acquired lower limit value and upper limit value, and (4) the result of the check is output. [Selection diagram] Figure 4