Abstract: A production planning system includes: an influence degree calculation unit that calculates a degree of influence which is applied on a probability distribution of a workload in a predetermined production process of a product by determining an undetermined design specification item of the product; and a display control unit that causes the design specification item and the degree of influence to be displayed in association with each other.

Abstract: The disclosure can evaluate a relation between a procurement cost and an inventory value of a component on the basis of a future manufacturing plan, and select a more appropriate ordering mode. A device includes: a product design allocation unit configured to allocate a predetermined design pattern to a product constituent element at a predetermined application rate which is based on a future design plan; a procurement cost computation unit configured to compute, for each ordering mode, a procurement cost of a component which is used in the product constituent element; an inventory value computation unit configured to compute, for each ordering mode, an inventory value of the component; and an ordering mode evaluation unit configured to evaluate a ratio of the procurement cost and the inventory value.

Abstract: A production plan making assistance apparatus for a product including a plurality of components, the production plan making assistance apparatus comprising: a storage unit; an input-output unit; and an operation unit; wherein the operation unit reads out the information stored in the storage unit and assigns a start date and a completion date in each process based on a process in which consumption of the production resource lies within the production ability and which synchronizes with the lead time, and wherein the operation unit specifies the completion date assigned to each previous process in a plurality of synchronizing processes, specifies a start date assigned to the process continuing to the specified completion date, calculates a total period between the specified completion date and the specified start date as a total non-synchronization degree and outputs the calculated total non-synchronization degree to the input-output unit.

Abstract: Workability management system including operations of: storing resource identification information for identifying said resource and said work history information in association with each other in a storage medium; extracting said work history information corresponding to said resource identification information from said storage medium when a change occurs in said work history information, updating a change content and storing it into said storage medium; extracting said work history information corresponding to said resource identification information of said resource for judging workability of said resource from said storage medium, taking out total use information of said resource from said work history information, and creating a change with time of said total use information as said casual sequence information; and judging workability of said resource by said casual sequence information.

Abstract: Workability management system including operations of: storing resource identification information for identifying said resource and said work history information in association with each other in a storage medium; extracting said work history information corresponding to said resource identification information from said storage medium when a change occurs in said work history information, updating a change content and storing it into said storage medium; extracting said work history information corresponding to said resource identification information of said resource for judging workability of said resource from said storage medium, taking out total use information of said resource from said work history information, and creating a change with time of said total use information as said casual sequence information; and judging workability of said resource by said casual sequence information.

Abstract: The invention aims at providing a work performance collection system for reliably collecting information of work performance without applying a burden to a worker in assembly of a work object article. This system includes a work specification ID tag into which information for specifying a work content of a work object article is written, a work management box having a throw-in port into which the work specification ID tag is thrown at the time of work, and an ID tag reader provided to a side surface of the work management box, for reading the work specification ID tag and transmitting the information read to a work performance management apparatus. A worker is required to only throw the work specification ID tag into the work management box at the start of work and to only take out the work specification ID tag at the end of work.

Abstract: The invention aims at providing a work performance collection system for reliably collecting information of work performance without applying a burden to a worker in assembly of a work object article. This system includes a work specification ID tag into which information for specifying a work content of a work object article is written, a work management box having a throw-in port into which the work specification ID tag is thrown at the time of work, and an ID tag reader provided to a side surface of the work management box, for reading the work specification ID tag and transmitting the information read to a work performance management apparatus. A worker is required to only throw the work specification ID tag into the work management box at the start of work and to only take out the work specification ID tag at the end of work.