# "See Also" & Classify what do they look at?

**URL:** <https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816>\
**Category:** DEVONthink\
**Tags:** devonthink3\
**Created:** [May 19, 2020, 5:15pm UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816 "2020-05-19T17:15:14Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![Mitch\_Wagner](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/mitch_wagner/32/7006_2.png) [@Mitch\_Wagner](https://discourse.devontechnologies.com/u/Mitch_Wagner)\
**Post date:** [May 19, 2020, 5:15pm UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/1 "2020-05-19T17:15:14Z")

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What does DT examine when it looks for “See Also” recommendations? And for Classify?

I think that “See Also” just looks at the contents of each document (rich text document, plain text document, PDF, sheet, email message, etc.). “Classify” looks at the contents of individual documents, as well as the contents of ALL the documents in each group. And neither “See Also” nor “Classify” looks at the tags of a document, or any other metadata, such as dates, flags, unread vs. read, labels, etc.?

Correct?

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [May 19, 2020, 6:23pm UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/2 "2020-05-19T18:23:53Z")

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That’s correct. Matches are suggested by…

See Also = content  
Classify = content and location

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [May 20, 2020, 7:30am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/3 "2020-05-20T07:30:05Z")

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Since version 3 document properties and (custom) metadata are also used.

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [May 20, 2020, 8:58am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/4 "2020-05-20T08:58:16Z")

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How do I not know this? 🤔🙂  
What non-custom metadata is used, things like Author ?

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [May 20, 2020, 9:45am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/5 "2020-05-20T09:45:06Z")

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> [@BLUEFROG](#):
>
> What non-custom metadata is used, things like Author ?

All text-based metadata.

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**Author:** ![Mitch\_Wagner](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/mitch_wagner/32/7006_2.png) [@Mitch\_Wagner](https://discourse.devontechnologies.com/u/Mitch_Wagner)\
**Post date:** [May 20, 2020, 3:16pm UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/6 "2020-05-20T15:16:36Z")

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> [@cgrunenberg](#):
>
> Since version 3 document properties and (custom) metadata are also used.

For both “see also” and “classify”? Does that include tags?

Thanks!

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [May 21, 2020, 8:49am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/7 "2020-05-21T08:49:13Z")

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> [@Mitch\_Wagner](#):
>
> For both “see also” and “classify”? Does that include tags?

In both cases but tags don’t matter.

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<div class="post-metadata">

**Author:** ![Mitch\_Wagner](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/mitch_wagner/32/7006_2.png) [@Mitch\_Wagner](https://discourse.devontechnologies.com/u/Mitch_Wagner)\
**Post date:** [May 21, 2020, 6:57pm UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/8 "2020-05-21T18:57:55Z")

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Thanks!

What document properties does “see also” and classify examine?

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [May 22, 2020, 5:41am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/9 "2020-05-22T05:41:35Z")

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> [@Mitch\_Wagner](#):
>
> What document properties does “see also” and classify examine?

See e.g. Document Properties inspector.

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**Author:** ![pete31](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/p/d26b3c/32.png) [@pete31](https://discourse.devontechnologies.com/u/pete31)\
**Post date:** [June 23, 2020, 8:33am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/10 "2020-06-23T08:33:24Z")

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Does this mean if I write tags into keywords (via exif tool) then they are used for classify?

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<div class="post-metadata">

**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [June 23, 2020, 8:46am UTC](https://discourse.devontechnologies.com/t/see-also-classify-what-do-they-look-at/55816/11 "2020-06-23T08:46:46Z")

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Yes but only PDF/RTF support editing of keywords.