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: 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 Web service status management service is provided independently of processing nodes related to a Web service case. Information for uniquely identifying the status management service is added to messages transmitted and received between the processing nodes. Communication between each of the processing nodes and the status management service makes it possible for the status management service to record the status condition of a specific Web service case. Then, according to the recorded status condition, a notification for cancellation of the case can be directly transmitted to the processing nodes related to the specific Web service case.

Abstract: A Java application program executing apparatus is comprised of a JAR (Java Archive) file receiving unit for receiving a JAR-file-formatted Java application program, and an application program executing unit for executing a received application program by a Java application program execution system. The application program executing unit initiates the received application program before all of the JAR-file-formatted Java application programs are executed, and executes both a JAR file receiving process operation and an application program executing process operation in a parallel manner. Thus, since the application program executing unit receives the JAR file and, at the same time, initiates the application program, or executes these process operations in a parallel manner, waiting time of a user when the application program is initiated is shortened.