Categories vs Keywords

[RH71]

I’m trying to get my head around the different cataloging options. Can somebody explain when best to use catagories vs keywords? I assume both can be embedded in EXIF?

Also I understand that keywords can be organised is a hierarchical structure. There are some predefined keyword hierarchies available for importing into Lightroom. Is this also possible in ACDSee? If not, is there a simple way to create a hierarchy and which one would you recommend?

Sorry this question is so unspecific, but I appreciate any help you can give.

Cheers,
Rene

[marklevine]

I am a relatively new user, having participated in what I hope is a mass migration away from Lightroom. I have settled on using Categories when I know that I'll never want to "AND" groups of images together. For example, I use albums for holiday travel because I know what I'll never want to review photos from different trips at the same time. I use Keywords when such grouping might be necessary. My example here is from my birding photos. I have recreated the family of tree of birds in the keywords. One is called "Yellow-rumped Warbler" which has two sub-keywords, for "Myrtle" and "Audubon" varieties. This allows me to pull up ALL yellow-rumped warblers, yet allows me to look at sub-families individually. Hope this helps.

[larry_vh]

There is a discussion about this here, http://forum.acdsee.com/forum/main-c...es-vs-keywords.

[RH71]

Thanks for your comments and clarification. To follow up with a specific question: is it possible to import a list of keywords into ACDSee (e.g. http://lightroom-keyword-list-project.blogspot.com.au/) ?