When each of remaining numbers ZM about four users US1 to US4 belonging to an office A is lower than an ordering standard number HKM as described above, ordering numbers HM about the aforementioned four users US1 to US4 are summed up. Alternatively, when the remaining number ZM about one user US1 belonging to the office A is lower than the ordering standard number HKM, the ordering numbers HM about the users US1 to US4 belonging to one and the same office A as the user US1 may be summed up.

The foregoing description of the embodiments of the present invention has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations will be apparent to practitioners skilled in the art. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to understand the invention for various embodiments and with the various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention defined by the following claims and their equivalents.

<Supplementary Explanation of Processor and Program>

In the embodiments above, the term “processor” refers to hardware in a broad sense. Examples of the processor includes general processors (e.g., CPU: Central Processing Unit), dedicated processors (e.g., GPU: Graphics Processing Unit, ASIC: Application Integrated Circuit, FPGA: Field Programmable Gate Array, and programmable logic device).