Patent Document ID: 20150288574
Application ID: 14434482
Patent Flag: 0

Claim One:
1. An information system construction assistance device comprising: a selection screen presentation unit that presents a selection screen for selecting a requirement item group provided according to a specific task requirement in inputting construction requirements of a construction expected system that is an information system to be constructed; an input screen presentation unit that presents an input screen for inputting parameters included in the selected requirement item group; a system model selection unit that selects a system model satisfying the construction requirements based on the input parameters from the system models set as design information units of a previously stored system; an operation information acquisition unit that acquires operation information of an existing system that is an already constructed information system, on the basis of the system model selected by the system model selection unit and a similar system model similar to the system model; a performance evaluation unit that evaluates a performance of the system model selected by the system model selection unit, using parameters which are included in the operation information acquired by the operation information acquisition unit; and a construction candidate presentation unit that compares the performance of the system model evaluated by the performance evaluation unit and the construction requirements based on the input parameters, and presents an information system in which a system factor for determining a size of a system included in the design information of the system model selected by the system model selection unit is constructible by using the selected system model, as a candidate of the construction expected system.