Final answer:
The terms 'With Immediate Effect' (WIE) and 'Until Further Notice' (UFN) should not be used as validity terms in DINS because they lack clarity and specific timelines.
Step-by-step explanation:
The phrase “With Immediate Effect” (WIE) and “Until Further Notice” (UFN) should not be used as validity terms in Directives, Instructions, and Notices (DINS). These terms are often too vague and do not provide a clear indication of the effective time frame or duration of a directive or notice. Instead, more specific dates and timelines should be given to ensure clarity and avoid confusion. For example, rather than saying a directive is effective “with immediate effect,” it would be more appropriate to state a specific starting date. Similarly, instead of using “until further notice” to indicate the end of a directive, a specific end date or condition should be indicated whenever possible.
Effect' and 'Until Further Notice' in this way would be unconventional and less professional.Instead, these phrases are typically used as part of the content itself, to indicate specific instructions or announcements that have an immediate or indefinite impact.