For example:
• ensure assignments are fixed - do not modify or reuse identifiers;
• maximise traceability over time - share rules for changes, retirement and links from old to new;
• don’t code changeable details into identifiers e.g. version numbers, names, organisations, etc;
• define a single preferred presentation - capitals, spaces, underscores etc.; and
• make identifiers web-friendly - use only unreserved characters, that is:
• avoid HTML reserved characters (" ' & < >); and
• avoid URI reserved characters (! * ' ( ) ; : @ & = + $ , / ? # [ ]) except for their specific uses in a URI if your identifier is an entire URI.
element Resource identifier
For example: • ensure assignments are fixed - do not modify or reuse identifiers; • maximise traceability over time - share rules for changes, retirement and links from old to new; • don’t code changeable details into identifiers e.g. version numbers, names, organisations, etc; • define a single preferred presentation - capitals, spaces, underscores etc.; and • make identifiers web-friendly - use only unreserved characters, that is: