Speech analytics and quality · L2 · 20 min
Redaction
Learn in five minutes
- Wikipedia's personal-data page says personally identifiable information is information related to an identifiable person, and that legal definitions differ by place.
- That page quotes NIST SP 800-122: information that can distinguish or trace an identity, and other information that is linked or linkable.
- It says information that might not count as PII under HIPAA can still be personal data under the GDPR. One definition is not universal.
- Replacing a name and leaving a unique account number is not finished. A linked field can still identify.
- This page is not a redaction product and not legal advice.
Masking is a learning habit: find every field that can pick out the person, not only the name. Confirm the definition that applies before you rely on it.
Visual
Two fields
- A toy line: 'Sam, account 4412, asked for a card.'
- Replace the name. Read the line again.
- The account number is still there. Mask that too, or say the line is not redacted.
- Do not use a real customer's line for the exercise.
Quiz
Ecosystem
- Redaction
- Removing or masking information that can identify a person. A name-only pass can leave a linked identifier.
Sisters: Automatic speech recognition, Sentiment analysis, Quality rubrics, Personal data.
The live voice pipeline answers the person. Analytics reads a recording later. Keep those clocks apart.
A later review can add a rubric you wrote. It cannot borrow a customer's tape.
Config
- Write the goal in one sentence.
- Name the input and the allowed output.
- Save the trace next to the result.
Troubleshooting
- The answer looks fluent and is wrong. Check whether a source passage actually contains the claim.
- The loop never stops. Set a step cap and stop when the tool result repeats.
Sources and go deeper
- Personal data — Wikipedia wikipedia The page title is Personal data. last checked 2026-10