I believe this would depend on why and how the tattoos are being stored as archived objects. Is it meant to be stored as it is on the skin, or as a surrogate photograph (or something else)? Is the body viewed as a custodian or as a canvas? Is the tattooist viewed as a artist or a technician? Is the tattoo viewed as a cultural, historical or art object or replication/representation of another object? There are many questions to be answered before the core question can be answered.

I am sure you have already seen this:

http://vraweb.org/resources/cataloging-metadata-and-data-management/metadata-standards/

There is also this Tattoo schema:

https://glaziercapstone.wordpress.com/tag/tattoo-description/

Maybe you will find this project interesting: 

http://dh101.humanities.ucla.edu/DH101Fall12Lab5/about

Hi there, it is indeed a good question. I do not know the existence of any other metadata schema on tattoo except the one mentioned by Kim. However, I think the above schema is a good one to start with although is not sufficient enough. It missed out many of the important aspects such as genre, types, name, medical hazards, historical perspectives, and so forth. Also, I differ in the way the categories are created and named in this schema. 

Hello Mr Kumar - we are still not ready with our metadata scheme and I will share it when we have it available. 

Thank you, 

Milena