[Gnso-epdp-idn-team] Your Input Requested: String Similarity Review Level & Rationale
Michael Bauland
Michael.Bauland at knipp.de
Fri Apr 22 06:46:24 UTC 2022
Dear Ariel, Emily, Steve, dear team colleagues,
my preference is either Level 1 or Level 2, depending on whether new
variants can be "added/applied for" outside of "application rounds".
Let me explain my decision for each level.
Level 3
=======
I don't think Level 3 is required. It's a lot of additional effort, but
it is not really giving important input.
See the following abstract and very reduced example.
Applied for TLD labels:
* A (with blocked variant A1)
* B (with no variants)
Assumption:
String similarity says B and A1 are confusingly similar. However, and
that's important, A and B are *not* confusingly similar (if they were
this example would be irrelevant for this question).
Rationale:
If we go for Level 3, then only either A or B (or none) can be
delegated, but not both.
I see no benefit in this restriction: Obviously (by assumption) A and B
won't be confused. Also A won't be able to activate the TLD label A1.
Thus, in my view, it's causing unnecessary work for the string
similarity review and it's keeping one applicant form getting their TLD.
Level 2
=======
If we allow adding of variants outside of application rounds, we need
this level, simply because we don't want the string similarity review
process to be started every time a TLD operator wants to add another
variant. The late addition of variants must be as smooth and simple as
possible. Any checks/validations that can be executed beforehand should be.
Level 1
=======
If we allow adding of variants only in the initial application process
and possibly during another application round (but not any arbitrary
time in between), this is my preference.
It reduces the effort to a minimum. There's no need to compare any
allocatable variant that has not been requested so far. Possibility is
high that it never will be requested.
If such a variant does get requested in a later round, well, that's like
a new application, it has to compete with all existing ones on a first
come first serve basis (i.e., the existing ones take precedence).
I think this already answers most items, but I'll nevertheless revisit
the three explicit questions.
> 1. Why do you believe your preferred level of review is the most
> appropriate?
That's explained above.
> 2. Based on your preferred level of review, what would be the string
> similarity review’s impact on preventing user confusion and
> security/stability issues in the DNS? In other words, how effective
> would string similarity review be in preventing delegation of
> similar strings?
It would prevent user confusing, because any delegated string would
undergo the string similarity review process. Similar to my argument
under "Level 3", there's no benefit in comparing strings that will never
be delegated (i.e., visible in the DNS). Just because a non-delegated
variant of an existing TLD is confusingly similar to another TLD
shouldn't cause those TLDs themselves to be blocking each other. They
are *not* confusingly similar to each other.
> 3. Have you considered the feasibility of implementing the string
> similarity review based on your preferred level? For example, the
> complexity and costs involved to conduct the resulting review.
Yes, I have. :-)
I suggest to only compare the labels that factually could be delegated
(i.e., become visible in the DNS) until the next round of TLD
application starts. This is the minimum requirement and I don't think we
need more (actually more would even be harmful, see my arguments above).
Please let me know, if anything in my arguments are difficult to
understand, I'm happy to explain in more details.
Best regards,
Michael
PS This is my personal view. The RrSG has not expressed any view itself.
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