Chapter 11 - Evidence and sampling Flashcards
What are the procedures outlined in ISA 500 for obtaining evidence?
- Inspection of documentation
- observation
- Inquiry
- External confirmation
- Recalculation
- Reperformance
- Analytical procedures
What are the 3 main types of computer assisted audit techniques (CAAT)?
- Test data
- Audit software
- Data analytics
How is test data used?
Assurance provider supervises the process of running data through the client’s system
Can dummy data used?
Yes, but assurance provider must be very careful to reverse all effects
Can real data used?
Yes, but data may not contain all the errors necessary to test controls rigorously
What is the safest approach when running dummy data?
Run dummy data against a verified copy of client’s system
What does audit software make use of?
Assurance provider’s own specialised software
On what basis does audit software work?
Basis of interrogating client system and extracting/analysing info
What can audit software do?
- Substantive procedures
- Extract samples
- Check calcs
- Prepare reports
- Anything that doesn’t require a judgement
What are the applications of data analytics?
- Reperforming calcs
- Analysing entire populations
- Matching transactions
- Data comparisons
- Analysing revenue trends
What ISA provides details on the use of analytical procedures?
ISA 520
What does ISA 520 describe?
How the auditor must decide whether using substantive analytical procedures will be effective and efficient at reducing risk
When should analytical procedures be used?
At risk assessment stage
For any item directionally tested, what are the 2 possible results?
Fairly stated or misstated
What figures are estimated?
- Product warranties
- Depreciation
- Inventory
- Receivables allowances