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   DATA FLOW DIAGRAM FOR

 

Explanation of Level 0 Components of the DFD
for HOME COMFORT Ltd.

 

ENTITIES INVOLVED IN HOME COMFORT LTD. (LEVEL 0)

Management – This is the person that receives requests and gives authorization.

Accounting – This is the entity that receives accounting transactions and sales information and produce sales reports.

Supplier – This is the entity that supplies goods to Home Comfort Ltd. They give the system information on themselves
and catalogs.

Customer - This is the person that purchases goods from Home Comfort Ltd.

Stock – This entity receives inventory status and produces reports on the status of the inventory.

Sales – This is the entity that gives the system information for the various items sold and receives reports on Sales.

Employee – This is the entity that works for Home Comfort Ltd. They give the system their information and receive a
receipt for their work.

 

DATA FLOWS IN HOME COMFORT LTD. (LEVEL 0)

Request of Authorization – Permission need to do something (for example request to purchase extra stock).

Authorization – This is permission granted for the request given to management.

Accounting Transactions – Transactions that occur in the business besides sales.

Sales Report – This is a report of all the items that are sold by the company.

Sales Information – Information such as code of item, description, price etc.

Item Information – This is the information on the item that was bought by the customer.

Employee Information – This shows the flow of information about the employee.

Receipt of payment – This shows the receipt that the employee receives.

Quotation – This is a form of receipt that the company receives from the supplier after purchasing items.
It sates all the items that they ordered with description and amount, price, etc.

Catalog – This is all the items that are available at the suppliers for Home Comfort Ltd.

Supply Information – This is information about all the items that are supplied to the company along with supplier name etc.

Inventory Status – This is the amount of items that are in and out of stock.

Inventory Report – This a report stating all the items that are in stock at specific times.

Order Information – For the customer, this flow contains information about the item ordered, customer who ordered the item.
For the supplier, this flow contains information about the item ordered from the supplier by Home Comfort Ltd

Payment – For the customer, this is the receipt of payment given to the customer when purchase is made.
For the supplier this is the receipt of payment given to Home Comfort Ltd. when purchase is made to the supplier.

Customer Information – This is the information that is collected about the customer.

 

 

   DATA FLOW DIAGRAM FOR

 

Explanation of Level 1 Components of the DFD
for HOME COMFORT Ltd.

 

ENTITIES INVOLED IN HOME COMFORT LTD. (LEVEL 1)

Management – This is the person that receives requests and gives authorization.

Accounting – This is the entity that receives accounting transactions and sales information and produce sales reports.

Supplier – This is the entity that supplies goods to Home Comfort Ltd. They give the system information on themselves
and catalogs.

Customer - This is the person that purchases goods from Home Comfort Ltd.

Stock – This entity receives inventory status and produces reports on the status of the inventory.

Sales – This is the entity that gives the system information for the various items sold and receives reports on Sales.

Employee – This is the entity that works for Home Comfort Ltd. They give the system their information and receive a
receipt for their work.

 

DATA FLOWS IN HOME COMFORT LTD. (LEVEL 1)

Request of Authorization – Permission needing to do something (for example request to purchase extra stock)

Authorization – This is permission granted for the request given to management.

Sales Report – This is a report of all the items that are sold by the company.

Sales Information – Information such as code of item, description, price etc.

Employee Information – This shows the flow of information about the employee

Receipt of payment – This shows the receipt that the employee receives.

Order Information – For the customer, this flow contains information about the item ordered, customer who ordered the item.
For the supplier, this flow contains information about the item ordered from the supplier by Home Comfort Ltd

Payment – For the customer, this is the receipt of payment given to the customer when purchase is made.
For the supplier this is the receipt of payment given to Home Comfort Ltd. when purchase is made to the supplier.

Payment Info – The information on the payments that have to be made to different entities.

Customer Information – This is the information that is collected about the customer.

 

PROCESSES THAT TAKE PLACE AT HOME COMFORT LTD. IN (LEVEL 1)

Sales Process – This is the process that deals with when a customer is purchasing an item(s). It accepts the order information from
and produces a sales report.

Delivery Process – This process producing a receipt showing all the goods delivered to the company.

Item Info Process – This process gives the customer the item information e.g. items that are available, type, prices, discounts etc

Stock Process – This process receives stock information and orders the necessary stock.

Order Process – This process accepts the customer order information, which is then sent to sales.

Payment Info Process – This process gives information for payment that are to be made.

Accounting Process – These are all the processes that the accountant engages in e.g. payments.

 

FILES THAT STORE INFORMATION AND REPORTS AT HOME COMFORT LTD. (LEVEL I)

Sales information– This file stores the information of all the items sold together with the customer information

Stock Report – This file stores all item information with detailed information on each item.

Items information – This stores information about the items that are sold.

Delivery information - This file stores the delivery note information.

Order Information – This file contains information about the items ordered.

Customer Information – This file contains the information that is collected about the customer.

 


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