Abstract: An account item management system is provided, wherein account item elements are classified into first to n'th groups in order from highest to lowest levels, such that the first group encompasses the highest-level concepts, and the n'th group encompasses the lowest-level concepts, and the account item elements classified into the first to n'th groups are memorized in the system 10 chronologically from the past to the present. The system 10 is capable of constructing a hierarchically-structured accounting database based on the account item elements, such that the account item elements are systematically related to one another, and the system comprises: database generation means for generating, in real time, the hierarchically-structured accounting database as of any given point in the past or at the present; and database output means for outputting the generated hierarchically-structured accounting database in real time.

Abstract: An information processing system comprises a batch control class for passing a beginning message, and scheduling after receiving a completion message an input class for inputting data based on conditions when receiving the beginning message from the batch control class and passing the completion message to the batch control class upon completion of input processing, a conversion class for converting the input data based on conditions upon receiving the beginning message from the batch control class, and passing the completion message to the batch control class upon completion of conversion processing, and an output class for outputting data based on conditions upon receiving the beginning message from the batch control class.

Abstract: A production and inventory control system, comprises a first business application system for executing a first business application, a second business application system for executing a second business application, and a production database for storing information of the first business application system and the second business application system, wherein the control system distinctively displays the information for each of the first and second business application systems.

Abstract: An information processing system comprises a batch control class for passing a beginning message, and scheduling after receiving a completion message an input class for inputting data based on conditions when receiving the beginning message from the batch control class and passing the completion message to the batch control class upon completion of input processing, a conversion class for converting the input data based on conditions upon receiving the beginning message from the batch control class, and passing the completion message to the batch control class upon completion of conversion processing, and an output class for outputting data based on conditions upon receiving the beginning message from the batch control class.

Abstract: An Information Processing System includes a method display unit that displays the methods belonging to a class, a method selection unit that selects the desired method from among the methods displayed, a new class creation unit that creates program source code that indicates the new class using the selected methods, a compiling unit that compiles the above discussed program source code and creates the execution file, and an information processing unit that executes the above discussed execution file and conducts the information processing defined by the method within the new class. By this system, it is possible to construct a highly productive and highly maintainable information processing system.