Abstract: The invention proposes a method for devising a production plan of a product to be produced through multiple production steps having different characteristics in a supply chain across multiple companies and/or multiple factories. The method divides a production step of the product into multiple production steps in advance based on a constraint to be considered when the production plan therefor is devised, defines identifiers for the multiple production steps, prestores the defined identifiers in a storage portion as step identification information, and prestores step information having at least correspondences between the production steps and items.

Abstract: A system and method for generating disassembly, procurement and production plans dealing with recyclable parts and products are provided. Production demand information on products to be manufactured, collection schedule information on individual used products and recyclable part table on recyclable parts contained in the used products are stored in memory; recyclable part availability information is generated by referring to the collection schedule information and the recyclable part table; and by referring to the production demand information and the recyclable part availability information, a disassembly plan on the recyclable parts is created based on the production demand. Further, the production demand information and the recyclable part availability information are referenced to generate a procurement plan on parts and materials that cannot be fully supplied from available, recyclable parts alone. Based on the disassembly and procurement plans, a production plan is created.

Abstract: In a physical distribution model of the circulation type, synchronization is established between a reuse plan and a delivery/fabrication plan to thereby reasonably reduce the excess and deficiency of inventory articles at a confluence point of regenerated reusable articles and newly delivered component parts. With regard to newly delivered lower-level items, predict a variation or fluctuation of stock quantity based on at least a delivery schedule of them and a present stock amount along with usage plans in manufacturing processes. As for lower-level items of regenerated articles, predict a delivery due date and an expected number of such regenerated lower-level items based on at least a stock quantity of recovered items collected for reuse purposes and a lead time for taking regenerated lower-level items out of the collected items, thereby controlling, based on the both prediction results, the stock quantity of the lower-level items in manufacturing processes.

Abstract: A system and method for generating disassembly, procurement and production plans dealing with recyclable parts and products are provided. Production demand information on products to be manufactured, collection schedule information on individual used products and recyclable part table on recyclable parts contained in the used products are stored in memory; recyclable part availability information is generated by referring to the collection schedule information and the recyclable part table; and by referring to the production demand information and the recyclable part availability information, a disassembly plan on the recyclable parts is created based on the production demand. Further, the production demand information and the recyclable part availability information are referenced to generate a procurement plan on parts and materials that cannot be fully supplied from available, recyclable parts alone. Based on the disassembly and procurement plans, a production plan is created.

Abstract: Techniques are provided which can easily and quickly make a supply-and-demand plan relative to demand. A processing device compares at each time point given demand with a manufacture capacity at a site stored in a storage device. If a supply disabled item exists, the number of supply disabled items and a time point when a supply becomes disabled are derived, and the number of supply disabled items and the time point are stored in the storage device as information representative of a supply disabled reason. A list of planned demand at each of a plurality of proceeding periods, a corresponding supply plan proposal, the site where a supply disabled state occurs, and information representative of a quantity is displayed on a display device. In addition, the site where the supply disabled state occurs and a supply disabled quantity in the period during which the supply disabled state occurs are displayed.

Abstract: In a safety stock control system, safety stock is changed in response to updating of a setting value so as to be continuously maintained as a proper value. The safety stock control system is comprised of a demand prediction means, an actual value calculating means, a predicted remainder calculating means, a parameter calculating means, and a safety stock calculating means for calculating safety stock based upon a parameter calculated by the parameter calculating means. In response to updating of the setting value, data of an area, which is different from such a data read when a plan is made, is temporarily read from a data storage means to the respective means, and then, various sorts of calculating process operations are carried out either one time or plural times.

Abstract: Fee imposition system and method for application software, in which a software providing corporation can collect the fee without fail and charge a fair fee to a customer, and thereby the customer can use the application software with a paying method easy to estimate. The fee imposition system includes a server machine installed in a management center for managing the software, a client machine installed in a customer's office and connected with the server machine through a communication means, a ticket issue unit for issuing a ticket file on the basis of a predetermined fee schedule, and a data copy/writing unit for copying data corresponding to the information designated by the ticket file from a data source memory unit and recording the copied data on a data target memory unit.

Abstract: Fee imposition system and method for application software, in which a software providing corporation can collect the fee without fail and charge a fair fee to a customer, and thereby the customer can use the application software with a paying method easy to estimate. The fee imposition system includes a server machine installed in a management center for managing the software, a client machine installed in a customer's office and connected with the server machine through a communication means, a ticket issue unit for issuing a ticket file on the basis of a predetermined fee schedule, and a data copy/writing unit for copying data corresponding to the information designated by the ticket file from a data source memory unit and recording the copied data on a data target memory unit.

Abstract: The present invention gives techniques for using an information system, including a computer, to provide a user, such as a manufacturer, with reusable parts for use in the building of or maintaining a product. In one embodiment of the present invention, a method, using a computer, for buying a reusable part for use in manufacturing a product is provided. The method includes a user sending to a supplier requirements for the reusable part; Next the users receives information on a plurality of available reusable parts meeting or exceeding said requirements from the supplier (or broker). The information includes individual historical information for each available reusable part. The user then orders an available reusable part and uses the reusable part in manufacturing the product.

Abstract: In a system for monitoring power of a nuclear reactor, a plurality of neutron flux measuring devices are arranged in a reactor core of the nuclear reactor for measuring neutron flux so as to generate neutron flux signals on the basis of the measured neutron flux. The neutron flux signals are filtered through a first weighting coefficient and a second weighting coefficient previously held in a monitoring signal calculating unit so as to generate stability monitoring signals. The first weighting coefficient corresponds to a fundamental mode of a neutron flux distribution in the reactor core and tire second weighting coefficient corresponds to a higher mode of the neutron flux distribution therein. The stability monitoring signal filtered through the first and second weighting coefficients are transmitted to a stability monitoring unit the stability monitoring unit monitors the stability of the core according to the transmitted stability monitoring signals.

Abstract: A production planning system capable of adjusting a production plan comprises a data storage unit for storing production planning information, parts list information, parts stock information and parts warehousing schedule information; a MRP (material resource plan) explosion unit for calculating the required amount of material resources based on the production plan information and the parts list information stored in the data storage unit; and a superfluous parts adjusting unit for making adjustment to eliminate superfluous parts.

Abstract: For planning a production plan which satisfies a plural number of target values of management indices, upon calculating out production amount, supply amount and/or transportation means of plural products, various kinds of target values of management indices and estrangement values thereof are set into restriction conditions when those restriction conditions are formulated into a linear programming problem, and then feasible production plan is calculated out, so that the estrangement between the management indices being calculated from executable solutions of the above-mentioned linear programming problems and the target values thereof comes to be minimal.

Abstract: A production planning system capable of adjusting a production plan comprises a data storage unit for storing production planning information, parts list information, parts stock information and parts warehousing schedule information; a MRP (material resource plan) explosion unit for calculating the required amount of material resources based on the production plan information and the parts list information stored in the data storage unit; and a superfluous parts adjusting unit for making adjustment to eliminate superfluous parts.

Abstract: A method or device for computing material requirements which calculates various parts and materials necessary for products to be produced when a production plan is input, in order to reduce the processing time for a material requirements computation. In order to establish the object, the method or device of computing material requirements is provided, which can perform a parallel process without using conventional low level codes. Parts computing means are respectively assigned to items. When the lower parts computing means receives the computation result of the upper parts computing means, it independently executes the computing process if the computation result is sufficient for the parts computation.

Abstract: A method or device for computing material requirements which calculates various parts and materials necessary for products to be produced when a production plan is input, in order to reduce the processing time for a material requirements computation. In order to establish the object, the method or device of computing material requirements is provided, which can perform a parallel process without using conventional low level codes. Parts computing means are respectively assigned to items. When the lower parts computing means receives the computation result of the upper parts computing means, it independently executes the computing process if the computation result is sufficient for the parts computation.

Abstract: In a production planning system, the explosion of a product to parts is performed by a specification check device and a design passage judgement device. An MRP calculation control device, a leadtime forecasting device, an MRP explosion calculation device, a work load calculation device and a data input/output device cooperate to estimate a shop load and to calculate a leadtime with a work load and a production capacity taken into consideration, thereby drawing up a production plan. A problem area analysis device analyzes a problematical area in the production plan to display it by graphics of the data input/output device. Various adjustment devices carry out the adjustment of the production plan through a graphic interface.