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OP's scenario involved a modifiable record, so this answer is suggesting it *should be* a write-once record.
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edit approved Jan 23, 2020 at 16:28
Bernhard Barker
edit approved Jan 23, 2020 at 16:28
Bernhard Barker
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Where's the problem? A quote isshould be a write-once record. 

Bob isn't allowed to edit it once it has been created and passed to Alice. 

You can ensure this at different levels, from simply not offering an edit dialog to sophisticated digital signature algorithms.

Where's the problem? A quote is a write-once record. Bob isn't allowed to edit it once it has been created and passed to Alice. You can ensure this at different levels, from simply not offering an edit dialog to sophisticated digital signature algorithms.

A quote should be a write-once record. 

Bob isn't allowed to edit it once it has been created and passed to Alice. 

You can ensure this at different levels, from simply not offering an edit dialog to sophisticated digital signature algorithms.

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Hans-Martin Mosner
Hans-Martin Mosner
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Where's the problem? A quote is a write-once record. Bob isn't allowed to edit it once it has been created and passed to Alice. You can ensure this at different levels, from simply not offering an edit dialog to sophisticated digital signature algorithms.