We can careful while testing the system (checklist)

1. Every Field should be tested
2. All integers
3. Mix regular text, numeric and special characters
4. All special characters
5. Put spaces
6. Leave it blank
7. Test Numeric fields with Negative Numbers and Positive Numbers both (-99,+99), terminal values (/,:),
8. Enter a digit, then press before continuing
9. Fill up the controls typing all character value (a-A, b-B, c-C,---------), numeric value(0,1,2,------), alpha numeric value(a3bc2----), type all special character ( *, &, <,>,?,/,@,$,%,^,(), ’,”,!,~,------)
10. Serve Maximum values in all fields
11. Do Wrong / Negative Input (Check that the application responds as expected)
12. Do Right / Positive Input (Check that the application responds to illegal input and unexpected transactions)
13. Database value should be tested
14. Every Interface should be tested
16. Sequential Order of Buttons should be checked
17. Check All Buttons of each Interface (Size, Position, Color, Caption)
18. Check the Result Carefully (Inserting Same Data, Different Data)
19. Maintains the Standard Layout through the Whole Project (e.g. Color Management, Size of Controls, Size of Screen, Position of Buttons)
20. Check the output (Reports) Carefully (Expected Result : Actual Result)
21. Check all Lists View / Tree View ( Click the List view while it is empty)
22. Check all Option Buttons
23. Check all Check Boxes
24. Check all Cells of Grid
25. Check Tab Order
26. Check Menu Items (Clicking on the Items)
27. Check the Sequence of Data
28. Check all Standards (Naming Convention, Layout Convention)
29. Check all Messages (Same Messages should be displayed for the same purpose)
30. Check the value after Add/Modify/Delete main form to other related form for integration
31. Check Required / Not Required /Validation
32. Check Date Format
33. Check Clear action initialize Displayed Data (like Date/Month will be Current System Date/Month)