Data Flow Diagram of a Simple Pharmacy

EXISTING POINT OF SALES
BLOCK DIAGRAM
PACKAGING OF ITEMS
GENERATING RECEIPT (MANUALLY)
COMPUTING OF TOTAL PRICE
SEARCHING OF ITEM
ORDER OF ITEM

CONTEXT DIAGRAM

ORDER OF ITEM
SEARCHING OF ITEM
COMPUTING THE TOTAL PRICE
GENERATING RECEIPT (MANUALLY)
PACKAGING OF ITEMS CUSTOMER

PHARMACIST
FIRST LEVEL DATA FLOW DIAGRAM
1 PLACE AN ORDER
2 SEARCHING OF ITEM
PHARMACIST
PACKAGING OF ITEMS
CUSTOMER
ITEM NAME ORDERED ITEM GENERIC NAME ORDERED ITEM PACKAGED ITEMS WITH RECEIPT VERIFIED ITEM
3 COMPUTING THE TOTAL PRICE

BOUGHT ITEM

4 GENERATING RECEIPT COMPUTED PRICE RECEIPT

PHARMACIST
1.2 SPECIFYING THE QUANTITY OF THE ITEMS BEING BOUGHT
1.1 INQUIRY
CUSTOMER
LOW LEVEL DATA FLOW DIAGRAM ITEM NAME INQUIRED NAME AND ITEMS QUANTITY OF
3.1 COMPUTING THE TOTAL PRICE
2.2 VERIFYING OF ITEM
2.1 SEARCHING OF ITEM ITEMS
GENERATING RECEIPT
3.2 COMPUTING VAT SALES

PACKAGED ITEMS WITH RECEIPT

SEARCHED
ITEM

VERIFIED ITEM
PACKAGING OF ITEMS BOUGHT ITEM

OFFICIAL COMPUTED RECEIPT PRICE

RECEIPT

EXISTING INVENTORY
BLOCK DIAGRAM SALE OF ITEMS
UPDATING OF INVENTORY
CHECKING THE CONDITION OF THE ITEM
RECEIVING OF INVENTORY

CONTEXT DIAGRAM

RECEIVING OF INVENTORY
CHECKING THE CONDITION OF THE ITEM
UPDATING OF INVENTORY
SALE OF ITEMS SUPPLIERS CUSTOMERS

PHARMACIST

FIRST LEVEL DATA FLOW DIAGRAM
1 DELIVER GOODS
PHARMACIST

DELIVERED GOODS DELIVERED GOODS PHARMACIST
4 PURCHASE ITEM
CUSTOMER
3 UPDATING THE INVENTORY
2 CHECKING THE CONDITION SUPPLY MEDICINE

SUPPLIER