01
Pick a topic
Choose one of the Information Processes and Technology topics above or type your own, then pick your state. WACE, VCE, HSC, QCE and SACE each word their questions differently, and the paper follows yours.
02
Attempt it yourself
Exam-style questions with the mark allocation showing, so you know how much to write. You answer them — nothing is handed to you.
A supermarket chain uses a real-time transaction processing system at its checkouts. Explain how the system maintains data integrity when two checkouts sell the last item of stock simultaneously. (6 marks)
03
Get it marked
Your answer comes back marked criterion by criterion in seconds — what you earned, what you half-earned, and what the examiner never saw.
4/6 · ✓ Identifies real-time updating of the stock record
04
Fix the gap
The topics you keep losing marks on come back around in your review until they're strong. That's the whole point.
the seven information processes
Choose your system
WACEVCEHSCQCESACE
Then your topic
the seven information processesparticipants, data and technology in a systemdatabase models and schemasnormalisation and data modelling
A supermarket chain uses a real-time transaction processing system at its checkouts. Explain how the system maintains data integrity when two checkouts sell the last item of stock simultaneously. (6 marks)
Information Processes and Technology · HSC
Marked in seconds
✓ Identifies real-time updating of the stock record
✓ Recognises the concurrency problem in the scenario
△ Names record locking as the mechanism preventing simultaneous update
✕ Explains the transaction as atomic — committed or rolled back in full
Weak topics, resurfacing
the seven information processes
participants, data and technology in a system
database models and schemas