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Subject: Re: [cti-stix] Small changes from 2.0 - 2.1 - dates on relationships
We’ve used first_seen and last_seen in other objects. I suggest we be consistent with both terminology and semantics of these properties with prior SDOs. Regards Allan From: "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> on behalf of Sean Barnum <sean.barnum@FireEye.com> I could support “valid_from” and “valid_to” Sean Barnum Principal Architect FireEye M: 703.473.8262 E: sean.barnum@fireeye.com From: <cti-stix@lists.oasis-open.org> on behalf of "Wunder, John A." <jwunder@mitre.org> I support this change, which I believe was originally suggested by Allan. You can think of many use cases in real intelligence:
I would say that the big question here is whether we call the fields “valid_from” and “valid_to” or “first_seen” and “last_seen”. I think I have a slight preference for valid_from and valid_to because of some
of the connotations of “last_seen” being present vs. absent. Like if last_seen is not on the object, what does it mean, vs. if last_seen is on the object set to yesterday. Valid_from on the other hand makes it clear that if the producer feels like the relationship
is still valid they don’t provide the field. John From: <cti-stix@lists.oasis-open.org> on behalf of Sarah Kelley <Sarah.Kelley@cisecurity.org> I’m going to be sending a series of emails regarding small changes that have been requested in moving from STIX 2.0 to STIX 2.1. The hope is that these won’t be particularly controversial, but if anyone has
any objections to these changes, please speak up. GITHUB issue #11 (https://github.com/oasis-tcs/cti-stix2/issues/11 ) There has been a suggestion to add “first_seen” and “last_seen” properties onto the relationship object. The Relationship object would then look something like this (with the suggested changes highlighted
in yellow): 3.1.2 Properties
Does anyone have any objections to making this change?
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