1. Chapter S4: Verifiability All Sections

2. Security Today’s Topic Information Quality IS Basics E-commerce AccessExcel PowerPoint Types of IS Systems Development Database Processing & Design Spreadsheet Design Business Intelligence Functional, Crossfunctional & Interorganizational Telecommu -nications Hardware & Software

4.  Define the verifiability goal.  Apply the spreadsheet design goal of verifiability.

5.  Simple  Clear  Verifiable  Accurate  Efficient

6.  Easy to understand  Minimize erroneous data entry

10. How Can I Make A Spreadsheet Understandable?

13. 1. Which cells may require data validation? 2. What rules can I establish to identify incorrect data? 3. Is this rule accurate 100% of the time? 4. What should my error message be?

14. How Do You Implement Data Validation?

16. 1. Which cells may require protection?

19.  Recall the workbook created to track QCA.  How could you support the verifiability design goal in this workbook?

20. 1. What documentation features already exist to support Verifiability? 2. What documentation features could be added to improve Verifiability? Consider appropriate use of: 3.Comments 4.Range Names 5.Documentation Worksheet 6.Data Validation 7.Protection

21.  What documentation features already exist to support Verifiability?

22.  What documentation features could be added to improve Verifiability?

23.  Think of a situation in which a comment might be appropriate. Which cell would you attach the comment to?  What would the comment be?

24.  Which range(s) could you name to improve the Verifiability of the worksheet?  How would you write the formulas to use these range names?

25.  What would you include on a documentation worksheet? How would you format that sheet?

26.  Which cells should you apply data validation to?  What would be your validation rules?

27.  Which cells would you unlock before turning on protection?

28.  Which worksheet actions would you allow when protection is turned on?