XFN 1.1: Social Relationships in HTML

by Mark Thompson

Understanding Relationships in the Digital Age

XFN 1.1: Defining Connections Online

A standard for describing social links using HTML metadata, gaining traction as people seek more control over their online identities.

  • XFN 1.1, short for XHTML Friends Network, provides a standardized way to define relationships between people on the web.
  • The system uses the HTML ‘rel’ attribute to categorize connections, ranging from casual acquaintances to close family.
  • Originally conceived in 2003, XFN continues to evolve, offering a flexible framework for expressing social connections.
  • The standard emphasizes symmetry,transitivity,and inverse relationships,providing a nuanced way to represent the complexities of human connections.

Ever wish you could tell your contacts *how* you know them, beyond just a name and email? That’s the core idea behind XFN 1.1. This standard, developed starting in 2003, allows web users to clearly define the nature of their relationships with others using HTML metadata. It’s a subtle but powerful tool for building a more meaningful and organized online social landscape.

Defining the ‘rel’ Attribute

At the heart of XFN 1.1 lies the HTML ‘rel’ attribute. This attribute, traditionally used for defining relationships between linked documents (like stylesheets or alternate versions of a page), is repurposed to describe the connection between people. For example, you might use rel="friend" to indicate a friendship.

Did you know? A symmetrical relationship means if you identify someone as a friend, they implicitly identify you as a friend in return.

Family and Romantic Ties

XFN 1.1 also provides terms for familial and romantic connections. You can specify someone as a “child,” “parent,” “sibling,” “spouse,” or “kin.” Romantic relationships are categorized with terms like “muse,” “crush,” “date,” and “sweetheart.” Notably, some relationships, like “muse” or “crush,” don’t have an inverse-a crush isn’t necessarily reciprocated!

Geographical and Identity Links

Location plays a role too, with “co-resident” (sharing an address) and “neighbor” defining proximity. the “me” relationship allows you to link to your own profiles on different platforms, establishing a clear identity across the web. This is a required symmetric relationship.

The Evolution of XFN

While initially gaining traction in the early 2000s, XFN 1.1 remains a relevant standard for those seeking greater control over their online social graph. More information about XFN can be found here. It offers a flexible and nuanced way to express the complexities of human relationships in the digital world.

Acknowledgments

Please see the Thanks page for acknowledgments.

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