1. CHINHOYI UNIVERSITY OF TECHNOLOGY
CLASS PRESENTATION
GROUP 23

2. GROUP MEMBERS FRANCISCA HORE C1111502B TENDAI ZHAKATA C1111188K
CHENAIMOYO RUPENGA C H
MIRIAM JONASI C E
MIRIAM MANHEDE C J
VONGAI CHAMBOKO C P
VIMBAI MAPOSA C H
GETRUDE NYABAKO C K
MONICA NYANDORO C M
FORTUNE MUVIRIMI C Q
OBRIEN MATENGAMBIRI C N
ETHEL MUDHINA C R

3. QUESTION
Soft data, a vendor, sends an invoice to Accu flow for data warehousing support services. The in voice is sent directly to Megan waters, the accounts payable clerk, who manually records the invoice in the accounts payable subsidiary ledger. Once the invoice is recorded it is forwarded to Stan Phillips, the cash disbursement clerk for processing. Stan prepares the cheque to pay the invoice and sends the cheque to John Sterling, the company’s treasurer. John approves and signs the cheque and cancels the in voice. John then mails the cheque to soft data and returns the cancelled invoice to Stan for recording in the cash disbursement journal and filling. Once a week Megan manually posts disbursements from the cash disbursement Journal to the accounts payable ledger.
REQUIRED
prepare
Document flow chart
Context diagram
Level zero of Data flow diagram

4. FLOWCHARTS
Flowcharts are documentation tools that summarise ideas that require many words to express.
They are widely used by auditors and systems analysts

5. a) Document flow chart
A document flow chart shows the physical flow of documents between organization units and information among areas of responsibility in an organization.
It traces the movement of documents for example internal memos, payroll information, inter office mails and invoices through a system

6. Document flow chart Usually show:
Where the document comes from or its origin
Where its distributed
How its used
Its ultimate disposition
Everything that happens as it flows through the system

7. DOCUMENT FLOWCHART

8. b) Context diagram
It is the highest level of data flow diagrams which provide the scope of the system being represented.
BENEFITS OF THE DIAGRAM
Shows the scope and boundaries of a system at a glance including the other system that interface with it.
No technical knowledge is required to understand the diagram.
It is easy to draw and amend due to its limited notation.
Can benefit a wide audience into stakeholders business analysts developers.

9. DFD CONSISTS OF FOUR BASIC ELEMENTS
Data sources and destinations
Data flows
Processes
Data stores

10. CONTEXT DIAGRAM
vendor
Cash
disbursement

11. Context diagram
Cash disbursement
treasurer
vendor

12. What is a dataflow diagram
These are graphical description of sources and destinations of data
Where data comes from
How it flows
The process performed on it
Where it goes

13. LEVEL ZERO DATA FLOW
A level zero dataflow diagram is a projection of the process on the context diagram.

14. Level zero data flow diagram
accounts payable
subsidiary ledger
cash
disbursement
1.0
Recording accounts payables
vendor
invoice
4.0
Posting disbursements
3,o
Approval, signing, cancellation of invoice
2.0
Cash disbursement process
Invoice and cheque
Cancelled invoice

15. THE END