14, July, 2007

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Latest Semablog (by Simon Woodside)

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how semacode works

Semacode's Software Development Kit is a system for ubiquitous computing. Using the Semacode SDK you can create visual tags for objects and contexts, and read them using a mobile camera phone. Our software running on your phone will then deliver you to the appropriate mobile content.

Semacode works by embedding a URL (web address) into a sort of two-dimensional barcode which looks like a dense crossword puzzle (pictured) — called the tag. The SDK software contains the capability to detect and decode the tag very rapidly with the camera on your phone. It extracts the URL and sends you to that address using the phone's built-in browser.

semacode example

This may seem complex — and technically, it is — but the user experience is simple to use and easy to learn. By connecting users from physical media to mobile content, the system creates new affordances, new ways to interact with the objects and media that surround us (including augmented reality, remote presence, social software and location tagging). In each field, be it marketing, tourism, games, etc., there are a number of opportunities to use this technology to improve the way people interact and communicate.

In addition, this is an open system. Anyone can create as many semacode tags for as many different URLs as they wish. Millions, even. As long as you own the domain name, the tagging system is completely unrestricted. Better yet, all of the software tools are available freely for non-commercial use. Therefore it is possible to build a complete system (for non-commercial purposes) without restrictions.

For an in-depth technical analysis, including a description of the various standards that the technology is based on, see the Semacode SDK technical paper.