Abstract: According to the invention, it is possible to efficiently construct an environment for implementing an IT system. Provided is an environment construction support device. The environment construction support device stores a tree structure model that is information representing an environment for implementing an IT system in a tree structure and can be updated as needed, a construction script structure that is information related to a construction script that is a series of codes for constructing the environment and can be updated as needed, and parameter correspondence information that is information indicating a correspondence between an element of the tree structure model and an element of the construction script, and updates the parameter correspondence information to correspond to latest contents of the tree structure model and the construction script structure by comparing at least one of the tree structure model and the construction script structure with the parameter correspondence information.

Abstract: A prepreg includes a fiber base material and a thermosetting resin composition impregnated into the fiber base material. The thermosetting resin composition contains a thermosetting resin including an epoxy resin; a curing agent; an inorganic filler; and an acrylic acid ester copolymer having a weight average molecular weight of 10×104 or more and less than 45×104. A content of the inorganic filler is 150 parts by mass or more relative to a total of 100 parts by mass of the thermosetting resin and the curing agent. A content of the acrylic acid ester copolymer is more than 30 parts by mass and 90 parts by mass or less relative to the total of 100 parts by mass of the thermosetting resin and the curing agent.

Abstract: A prepreg includes a fiber base material and a thermosetting resin composition impregnated into the fiber base material. The thermosetting resin composition contains a thermosetting resin including an epoxy resin; a curing agent; an inorganic filler; and an acrylic acid ester copolymer having a weight average molecular weight of 10×104 or more and less than 45×104. A content of the inorganic filler is 150 parts by mass or more relative to a total of 100 parts by mass of the thermosetting resin and the curing agent. A content of the acrylic acid ester copolymer is more than 30 parts by mass and 90 parts by mass or less relative to the total of 100 parts by mass of the thermosetting resin and the curing agent.