That depends on what you're trying to do.

Many BIBFRAME applications are unlikely to do much text processing except for comparison and maybe sorting. In such cases you almost certainly want to pick a normalisation form a use it wherever possible, because it will make comparisons and sorting faster. See

If you're interoperating with legacy systems, you may need to add control codes to exported data.


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From: Bibliographic Framework Transition Initiative Forum <[log in to unmask]> on behalf of Andrew Cunningham <[log in to unmask]>
Sent: Saturday, 2 July 2016 10:47:46 a.m.
To: [log in to unmask]
Subject: [BIBFRAME] Bidi control in BIBFRAME

I assume that the best way of handling bidirectional text in BIBFRAME is by using RLI, LRI and PDI Unicode control codes.

Would this assumption be correct?