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NSWInformation Processes and TechnologyQuick questions
Option: Transaction Processing Systems
Quick questions on Data integrity and issues in transaction processing systems for HSC Information Processes and Technology
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is data integrity?Show answer
Data integrity is the property that stored data is accurate, complete, consistent and current. A TPS protects integrity at entry through validation (range, type, presence and check digit checks) and verification, and during processing by ensuring every transaction is applied fully or not at all. If a transaction would leave the data in a half-updated, inconsistent state, the system rolls it back so the master file stays correct.
What are tying integrity to the issues?Show answer
The technical and ethical sides connect: poor integrity produces wrong data, and when that data is mined or used to decide about people, the errors and biases cause real harm. Strong validation, concurrency control and auditing are therefore both technical necessities and ethical safeguards.
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