Inspect alias membership
Fictional alias “Pat” maps S49 in site N and S50 in site S. Lookup request specifies site S; this resolves S50 under the local exact-site rule. A request with alias only remains ambiguous. The workflow does not merge staff identities or infer names from spelling similarity.
| Staff | Alias/site | Matches site S request |
|---|---|---|
| S49 | Pat/N | No |
| S50 | Pat/S | Yes |
Use supplied distinguishing information
- List both Pat candidates
- Read supplied site qualifier
- Match exact site S
- Return S50 or request qualifier if absent
Do not redirect an alias-only request to whichever candidate was stored first.
How many candidates exist before and after site S qualification?
Show the worked answer
Two before qualification, one after, S50. Neither staff key changes.
Retain ambiguity until resolved
| Case | Action or result | Evidence boundary |
|---|---|---|
| Pat only | Request distinguishing field | Two matches |
| Pat plus site S | ResolveS50 | One exact-site match |
Keep alias mappings as search aids, not replacement staff keys. The result links to the chosen staff detail record.