The document presents level 0 and level 1 context diagrams for the GHF online ordering system. The level 0 diagrams show the interactions between registered customers, unregistered customers, GHF admin/clerks, and the system for functions like customer registration, login, ordering, payment, delivery, and maintenance. The level 1 diagrams provide more detail on specific processes within the system like product, category, type, and company profile maintenance.

1. Order Information Order Details
0
GHF Online
GHF Manual
Ordering
Registered Customer Ordering System GHF Admin
System
Receipt Order Details
Figure 5 Context Diagram of GHF Current System

2. Order Specification Order Details
GHFOnlineOrd
Registered Customer ering System GHF Admin
Invoice/Receipt Order Confirmation
Figure 6 Context Diagram of GHF Online Ordering System

3. CustomerValid Account Customer Account Details
1
Unregistered Customer Customer
Registration Table
Customer Information Customer Information
Figure 6.1 Level 0 Diagram of GHF Online Ordering System

4. Username and Password Customer Username and Password
Registered Customer Access to System Front-end
Retrieved Username and Password
Customer
Username and Password Table
2
Username and Password
GHF ADMIN LOGIN
Access to Admin Form Retrieved Username and Password
Admin
Table
GHF CLERK Username and Password Username and Password
Access to Back-end Retrieved Username and Password
Figure 6.2 Level 0 Diagram of GHF Online Ordering System

5. Customer Details
Verified Customer Account Customer
Table
Customer Information,
Order Specification Order Details
3
Registered Customer Order Table
Ordering
Order Confirmation
Invoice/Receipt
Inquiry of Available
Products Product
Table
List of Available Products for sale
Figure 6.3 Level 0 Diagram of GHF Online Ordering System

6. Order and Payment Information Payment Details
4
Registered Customer Payment Payment
Table
Invoice/Receipt Payment Details
Figure 6.4 Level 0 Diagram of GHF Online Ordering System

7. Order and Delivery Information Delivery Details
5
Registered Customer Delivery Delivery
Table
Invoice/Receipt Delivery Details
Figure 6.5 Level 0 Diagram of GHF Online Ordering System

8. Front-End Reports
Front-End Updates
6
Username and Different
GHF ADMIN/CLERK
Password Maintenance
Database
Front-End Updates Details
Figure 6.6 Level 0 Diagram of GHF Online Ordering System

9. Product Updates
Product Information
6.1
Product Information
GHF ADMIN/CLERK Product
Product
(New Product/ New Table
Product Details) Maintenance
Product Details
Figure 6.6.1 Level nDiagram of GHF Online Ordering System

10. Category Updates
Category Information
6.2
Category Information
GHF ADMIN/CLERK Category
Product Category
(New Category / New Table
Category Details) Maintenance
Category Details
Figure 6.6.2 Level n Diagram of GHF Online Ordering System

11. Type Updates
Type Information
6.3
Type Information
GHF ADMIN/CLERK Type Table
Product Type
(New Type / NewType
Details) Maintenance
Type Details
Figure 6.6.3 Level n Diagram of GHF Online Ordering System

12. Company Profile Updates
Company ProfileInformation
Company 6.4
ProfileInformation Company
GHF ADMIN/CLERK
Company Profile
(New Company Profile/
Profile Table
Maintenance
New Company
ProfileDetails)
Company ProfileDetails
Figure 6.6.4 Level n Diagram of GHF Online Ordering System