| 摘要 |
A method and system for determining buffer inventory size. The method comprises the steps of selecting an item for which demand data is to be reviewed, collecting demand data from a data source that relates to the selected item, processing the demand data with a processing resource to determine the longest period of time to complete a requisition, determining an optimum TRR that is sufficient to allow a predetermined percentage of requisitions to be completed, generating a representation of dispersion of replenishment time TRR for the selected item and indicating in the representation the determined optimum TRR, processing the demand data with a processing resource to determine the date of the oldest requisition for the selected item and designating this determined date as the initial starting point, defining a predetermined time window equal to the optimum TRR, processing the demand data within the predetermined time window starting from the initial starting point to determine the accumulated demand for the selected item during that particular predetermined time window, storing the determined accumulated demand, incrementing the initial starting point to provide an updated starting point, processing the demand data within the predetermined time window starting from the updated starting point to determine the accumulated demand for the selected item during that particular predetermined time window, storing the determined accumulated demand, repeating the aforesaid incrementing and subsequent processing and storing steps until the end of the demand data has been reached, processing all stored determined accumulated demands to determine the numerically highest accumulated demand, generating a representation of the demand pattern for the selected item based on the series of determined accumulated demands, and setting a buffer inventory size to have a value equal to the determined numerically highest accumulated demand value.
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