# PWR-223 — External memory systems: learner worksheet Release: Revision 7T · Full Tutorial Edition Estimated time: Estimated 28 min reading and worksheet pass Difficulty: Intermediate Equipment: Basic stationery or digital tools — Two fictional source cards: v1 says Room Cedar at 10:00; v2 corrects it to Room Birch at 10:30.; A notes tool or paper index that supports source, date/version, owner, sensitivity, uncertainty, expiry and status fields.; CSV, JSON or plain-text export option, a second viewer and a retrieval timer. Space: Desk / seated Automated structural checklist: 10 of 10 structural checks present Evidence quality/context: G1; Detailed research depth Automated method-quality band: Comprehensive Method-rating basis: Structure coverage, instruction/check specificity, alternative distinctness, source troubleshooting, comparison depth and whether purpose/check fields are authored rather than derived. Editorial review: Pending manual editorial sign off ## Before you begin - [ ] I read the tutorial authority and stop conditions. - [ ] I have the required equipment/space or a declared accessible alternative. ## Canonical source context This lesson teaches an external memory system as a person–record–support capability. You will create one durable low-stakes entry with source, version, owner, uncertainty, expiry, retrieval cue, correction route and portable fallback, then test retrieval, supersession and vendor exit. Target outcome: The learner creates and retrieves a sourced fictional record, correctly replaces it with a new version, identifies the old version as superseded and opens a portable export without the original tool. ### Authority and setup conditions - Use fictional content and a private workspace; do not enter real sensitive or third-party data. - Choose one retrieval cue and one review/expiry date before creating the entry. - Decide how a correction will supersede rather than silently overwrite the old record. ### Required or supplied materials - Two fictional source cards: v1 says Room Cedar at 10:00; v2 corrects it to Room Birch at 10:30. - A notes tool or paper index that supports source, date/version, owner, sensitivity, uncertainty, expiry and status fields. - CSV, JSON or plain-text export option, a second viewer and a retrieval timer. ## 1. Define the memory purpose Write the exact future question the record must answer and who is allowed to use it. Why: Storage without a retrieval purpose creates clutter and privacy risk. Success check: The entry has one user, question and allowed use. Accessible alternative: Complete the same research action — “Write the exact future question the record must answer and who is allowed to use it.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The entry has one user, question and allowed use.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 2. Bind the exact source Copy the claim or action, source title/location and source date rather than storing an unsupported paraphrase. Why: A memory entry is only as correctable as its provenance. Success check: The original fictional card can be found from the entry. Accessible alternative: Complete the same research action — “Copy the claim or action, source title/location and source date rather than storing an unsupported paraphrase.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The original fictional card can be found from the entry.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 3. Add lifecycle fields Record owner, version, created date, sensitivity, uncertainty, review date, expiry and status. Why: Durable does not mean permanent or timeless. Success check: Every lifecycle field is filled or deliberately marked not applicable. Accessible alternative: Complete the same research action — “Record owner, version, created date, sensitivity, uncertainty, review date, expiry and status.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “Every lifecycle field is filled or deliberately marked not applicable.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 4. Create a retrieval cue Use a cue another future reader can search, such as “meeting room 14 September,” and test it without browsing folders. Why: A record that exists but cannot be found is not functioning memory. Success check: The correct entry appears within the declared retrieval time. Accessible alternative: Complete the same research action — “Use a cue another future reader can search, such as “meeting room 14 September,” and test it without browsing folders.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The correct entry appears within the declared retrieval time.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 5. Add correction and deletion routes State who may correct, how the old version is marked superseded and when either version is deleted. Why: Silent overwrite erases why the record changed. Success check: The active and historical states can be distinguished. Accessible alternative: Complete “State who may correct, how the old version is marked superseded and when either version is deleted.” in shorter passes, or use keyboard input, dictation or a support person, while preserving this success check: “The active and historical states can be distinguished.” Keep both accessible digital and paper/portable fallbacks when one format excludes the intended user. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 6. Apply the correction Enter the v2 room/time, link it to v1 and mark v1 superseded without leaving it active in the main result. Why: Version practice reveals duplicate and stale-answer risks. Success check: A search returns v2 first and clearly labels v1 inactive. Accessible alternative: Complete “Enter the v2 room/time, link it to v1 and mark v1 superseded without leaving it active in the main result.” in shorter passes, or use keyboard input, dictation or a support person, while preserving this success check: “A search returns v2 first and clearly labels v1 inactive.” Use large print, screen-reader labels, pictures, audio, braille or a trusted support person for the same source/currentness task. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 7. Export and open elsewhere Export the two records to a readable format, open it in a different viewer and locate claim, source, status and expiry. Why: Vendor exit is part of system reliability. Success check: The export works without the original tool and preserves the required fields. Accessible alternative: Complete the same research action — “Export the two records to a readable format, open it in a different viewer and locate claim, source, status and expiry.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The export works without the original tool and preserves the required fields.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 8. Test an outage fallback Close the main tool and answer the future question using the portable or paper copy; if that is not possible, declare safe stop. Why: A normal-use benefit can fail at the exact moment it is needed. Success check: The fallback returns v2 or clearly refuses an uncertain answer. Accessible alternative: Complete “Close the main tool and answer the future question using the portable or paper copy; if that is not possible, declare safe stop.” in shorter passes, or use keyboard input, dictation or a support person, while preserving this success check: “The fallback returns v2 or clearly refuses an uncertain answer.” Keep both accessible digital and paper/portable fallbacks when one format excludes the intended user. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## 9. Review value and burden Compare retrieval accuracy, time, setup, privacy and update burden, then keep, simplify or retire the system. Why: More records are not automatically more capability. Success check: The decision names what the system is for and what it will never hold. Accessible alternative: Complete the same research action — “Compare retrieval accuracy, time, setup, privacy and update burden, then keep, simplify or retire the system.” — using speech-to-text, text-to-speech, enlarged text, keyboard-only navigation, shorter work blocks or a support person. Preserve this declared check: “The decision names what the system is for and what it will never hold.” Do not convert the research task into capability practice. Alternative relationship: Target preserving when declared check is preserved Learner notes: ________________________________________________________________________________ Completed: [ ] ## Reflection What changed? ________________________________________________________________________________ What remains difficult? ________________________________________________________________________________ What will I repeat, adapt, ask for help with, or stop? ________________________________________________________________________________ --- Completion of this worksheet demonstrates tutorial participation only. It does not establish capability, qualification, safety clearance, diagnosis, treatment or independent validation.