Method and system for supply-and-demand plan planning

A computer program product for an information terminal which makes a supply plan for a manufacture site capable of manufacturing a plurality of items, the supply plan realizing a supply of each item by satisfying a delivery time for planned demand, the product comprising:

• at least one readable medium;
• a program code stored in said medium and executed by a processor of said information terminal, said program code comprising steps of:
• comparing a pre-stored manufacture capacity at said site with given demand at each time point, and if a supply disabled item exists, deriving the number of supply disabled items and a time point when a supply becomes disabled and storing the number of supply disabled items and the time point in a storage device as information representative of a supply disabled reason;
• displaying, on a display device as a list, planned demand at each of a plurality of proceeding periods, a corresponding supply plan proposal, said site where a supply disabled state occurs, and information representative of a quantity, and displaying said site where the supply disabled state occurs and a supply disabled quantity in the period during which the supply disabled state occurs;
• and
• receiving an external instruction of displaying the supply disabled quantity and displaying information identifying an item constituting the supply disabled quantity and information on a requested delivery time, a requested quantity and a supply quantity respectively of the item.

A supply-and-demand plan making system for making a supply plan for a manufacture site capable of manufacturing a plurality of items, the supply plan realizing a supply of each item by satisfying a delivery time for planned demand, the system comprising:

• means for storing a manufacture capacity of said manufacture site;
• means for comparing given demand with the manufacture capacity at each time point, and if a supply disabled item exists, deriving the number of supply disabled items and a time point when a supply becomes disabled and storing the number of supply disabled items and the time point in a storage device as information representative of a supply disabled reason;
• means for displaying, on a display device as a list, planned demand at each of a plurality of proceeding periods, a corresponding supply plan proposal, said site where a supply disabled state occurs, and information representative of a quantity;
• means for displaying said site where the supply disabled state occurs and a supply disabled quantity in the period during which the supply disabled state occurs;
• and
• means for receiving an external instruction of displaying the supply disabled quantity and displaying information identifying an item constituting the supply disabled quantity and information on a requested delivery time, a requested quantity and a supply quantity respectively of the item.