Provided are a travel process prediction system, a travel process prediction method, a travel process prediction device, and a computer program with which it is possible to reliably predict the time required for travel. When travelling objects, such as travelers, travel by using a transportation means, an information acquiring device (2) acquires, for example, the passage date/time at which each travelling object passed each waypoint in an arrival/departure facility, transportation-means specifying information indicating the transportation means, and situation information indicating the situation. A travel process prediction device (1) stores the acquired pieces of information in association with one another, and finds a regression equation that represents the relationship between: a passage time instant at a specific waypoint that a travelling object is scheduled to pass, the lapse of time between the passage of two specific waypoints, or a comparison result obtained by comparing a passage date/time with the boarding-complete date/time at the transportation means that a travelling object is scheduled to use； and items included in said transportation-means specifying information or said situation information. The travel process prediction device (1) calculates the predictive value of a future passage time instant, lapse of time, or comparison result by substituting, into the regression equation, the specifics of the transportation-means specifying information or the situation information to be predicted.resumo sistema, e método um sistema inclui um modelador (214) que gera um modelo que modela uma qualidade de achados em relatos de radiologista como uma função de dose depositada de escaneamentos dos quais os relatos de radiologista são criados e um otimizador de dose (216) que determina um valor de dose ideal para um escaneamento planejado com base no modelo e uma ou mais regras de otimização (218). um método inclui a geração de um modelo que modela uma qualidade de
