Data Processing Department: Step 1
The purchasing process begins in the data processing department, where the inventory control function is performed. The revenue cycle (in retailing firms) or the conversion cycle (in manufacturing firms) actually initiates this activity. When inventories are reduced by sales to customers or usage in production, the system determines if the affected items in the inventory subsidiary file have fallen to their reorder points.1 If so, a record is created in the open requisition file. Each record in the open requisition file defines a separate inventory item to be replenished. The record contains the inventory item num- ber, a description of the item, the quantity to be ordered, the standard unit price, and the vendor number of the primary supplier. The information needed to create the requisition record is selected from the inventory subsidiary record. The inventory subsidiary record is then flagged “On Order” to prevent the item from being ordered again before it arrives.
At the end of the day, the system sorts the open requisition file by vendor number and consolidates multiple items from the same vendor in to a single requisition. Next, vendor mailing information is retrieved from the valid vendor file to produce purchase requisition documents. Copies of these documents go to manual procedures in the pur- chasing and accounts payable (AP) departments.
Purchasing Department. Upon receipt of the purchase requisition, the purchasing department prepares a five-part purchase order. Copies go to the vendors, accounts pay- able, receiving, data processing, and the purchasing department’s own file.
The system in Figure 10.1 employs manual procedures to control the ordering process. A computer program identifies inventory requirements and prepares traditional purchase requisitions, thus allowing the purchasing agent to verify the purchase transaction before placing the order. Some firms use this technique to reduce the risk of placing unnecessary
1 This may be batch or real time, depending on the revenue and conversion cycle systems that interface with the expenditure cycle. The raw materials and finished goods inventory files link these three transac- tion cycles together. The design of one system influences the others. For example, if sales processing (rev- enue cycle) reduces inventories in real time, the system will naturally identify inventory requirements in real time also. This is true even if the purchases system is batch oriented.
Data Processing Department: Step 1The purchasing process begins in the data processing department, where the inventory control function is performed. The revenue cycle (in retailing firms) or the conversion cycle (in manufacturing firms) actually initiates this activity. When inventories are reduced by sales to customers or usage in production, the system determines if the affected items in the inventory subsidiary file have fallen to their reorder points.1 If so, a record is created in the open requisition file. Each record in the open requisition file defines a separate inventory item to be replenished. The record contains the inventory item num- ber, a description of the item, the quantity to be ordered, the standard unit price, and the vendor number of the primary supplier. The information needed to create the requisition record is selected from the inventory subsidiary record. The inventory subsidiary record is then flagged “On Order” to prevent the item from being ordered again before it arrives.At the end of the day, the system sorts the open requisition file by vendor number and consolidates multiple items from the same vendor in to a single requisition. Next, vendor mailing information is retrieved from the valid vendor file to produce purchase requisition documents. Copies of these documents go to manual procedures in the pur- chasing and accounts payable (AP) departments.Purchasing Department. Upon receipt of the purchase requisition, the purchasing department prepares a five-part purchase order. Copies go to the vendors, accounts pay- able, receiving, data processing, and the purchasing department’s own file.The system in Figure 10.1 employs manual procedures to control the ordering process. A computer program identifies inventory requirements and prepares traditional purchase requisitions, thus allowing the purchasing agent to verify the purchase transaction before placing the order. Some firms use this technique to reduce the risk of placing unnecessary1 This may be batch or real time, depending on the revenue and conversion cycle systems that interface with the expenditure cycle. The raw materials and finished goods inventory files link these three transac- tion cycles together. The design of one system influences the others. For example, if sales processing (rev- enue cycle) reduces inventories in real time, the system will naturally identify inventory requirements in real time also. This is true even if the purchases system is batch oriented.
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