The AgMES initiative was developed by the Food and Agriculture Organization

Food and Agriculture Organization

The Food and Agriculture Organization of the United Nations is a specialised agency of the United Nations that leads international efforts to defeat hunger. Serving both developed and developing countries, FAO acts as a neutral forum where all nations meet as equals to negotiate agreements and...

 (FAO) of the United Nations

United Nations

The United Nations is an international organization whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and achievement of world peace...

 and aims to encompass issues of semantic standards in the domain of agriculture with respect to description, resource discovery, interoperability and data exchange for different types of information resources.

There are numerous other metadata schemas for different types of information resources. The following list contains a list of a few examples:

• Document-like Information Objects (DLIOs): Dublin Core
  Dublin Core
  The Dublin Core metadata terms are a set of vocabulary terms which can be used to describe resources for the purposes of discovery. The terms can be used to describe a full range of web resources: video, images, web pages etc and physical resources such as books and objects like artworks...
  
  , Agricultural Metadata Element Set (AgMES)
• Events: VCalendar
• Geographic and Regional Information: Geographic information—Metadata ISO/IEC 11179 Standards
• Persons: Friend-of-a-friend
  FOAF (software)
  FOAF is a machine-readable ontology describing persons, their activities and their relations to other people and objects. Anyone can use FOAF to describe him or herself...
  
   (FOAF), vCard
  VCard
  vCard is a file format standard for electronic business cards. vCards are often attached to e-mail messages, but can be exchanged in other ways, such as on the World Wide Web or Instant Messaging...
  
  
• Plant Production and Protection: Darwin Core (1.0 and 2.0) (DwC)

AgMES as a namespace is designed to include agriculture specific extensions for terms and refinements from established standard metadata namespaces like Dublin Core

Dublin Core

The Dublin Core metadata terms are a set of vocabulary terms which can be used to describe resources for the purposes of discovery. The terms can be used to describe a full range of web resources: video, images, web pages etc and physical resources such as books and objects like artworks...

, AGLS etc.