"The Working Group of the Future of Bibliographic Control, as it examined technology for the future, wrote that the Library community’s data carrier, MARC, is “based on forty-year-old techniques for data management and is out of step with programming styles of today.” [1] The Working Group called for a format that will “accommodate and distinguish expert-, automated-, and self-generated metadata, including annotations (reviews, comments, and usage data.”

 

"Recognizing that Z39.2/MARC are no longer fit for the purpose, work with the library and other interested communities to specify and implement a carrier for bibliographic information that is capable of representing the full range of data of interest to libraries, and of facilitating the exchange of such data both within the library community and with related communities.”

 

http://www.loc.gov/marc/transition/news/framework-103111.html