Here's an interesting hypothetical use-case for you to mull over.
Imagine a local authority operates sheltered housing for people who are vulnerable or need particular assistance; access to the houses needs to be controlled (not least because some of the occupants are particularly vulnerable members of society, for whatever reason), but equally, appropriate access needs to be provided so that social care workers can provide the necessary help.
The local authority has installed PIN-pads on the doors, so that residents and support staff alike can get in. For each resident, therefore, there's no key to carry around and lose, and only one PIN to remember... but for the support staff there are dozens. As a result, the temptation is to keep a list of the PINs for each household, and take it with you on your rounds. You can see where this is going...
If such a list were to go missing, it could create a rather nasty problem - and even if nothing untoward happens as a result, the incident is likely to arouse feelings of disquiet and insecurity among people who may not be well placed to deal with them.
Any suggestions for a better solution?
Bear in mind that the local authority is probably strapped for funds, and doesn't necessarily have the money to run round all the sheltered housing installing iris scanners, for instance.
Answers/suggestions gratefully received via the comment box...
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