Wikipedia no longer has an entry for physical world hyperlinking - its been superseded by object hyperlinking! Personally I like the term physical world hyperlinking better. Object hyperlinking sounds very dehumanised. They've now updated the entry  contain more detailed information about such practices and include the term "tagging" as a collective noun, which has been broken down into groups such as RFID, Virtual, text based, SMS and Graphical. So as the ground shifts, nomenclatures are emerging and according to the most current wikipedia update,  my investigation is now into graphical tagging. Interestingly enough wikipedia hasn't got a conclusive list of all the types of graphical tagging out there.

 
One type of tagging  that looks quite cool is Shotcode, which was developed by Cambridge University. They are not as prolific as QR-codes and I am not sure what the future for them is, but the artist in me says" hmm... they look pretty", which no doubt is too flippant for many tecchies, but ultimately if you want people to use the technology you develop, you've got to make it appealing.... and currently much of it is so user-unfriendly it is not at all appealing. On the left is the shotcode tag for my blog, and the reader does seem to support a much wider range of mobile handsets than the i-nigma reader for QR-codes does.

I’ve just spent the last 2 days in a workshop with Branded Meeting Places project at Edinburgh University. They have been great!! I met with a diverse group of people from a range of disciplines, yet we all had interests in common which made the group a very inspiring one.

We’d been brought  together for a workshop on tagging, looking at how these may be utilised in linking the physical world with the virtual. I’d been invited on account of my work with QR codes, and it has definitely given me a great food for thought with my own research. In particular The Branded Meeting Places group have been collaborating with Mobile Acuity who create image recognition software, to come up with Spellbinder which on their website is described as:

“..a new interactive digital medium based on camera phones and image matching. Using Spellbinder, digital content can be embedded in the real world by taking a photograph of an object or place. The digital content can be released by another user by taking another photograph of the same location. Spellbinder does not require special markers or barcodes to be placed in the world and works indoors or outdoors”

The creative scope for this is really limitless, especially when I think of it in the context of my own art practice.

On the first day we brainstormed ideas surrounding tagging. In groups we came up with possible applications of tagging and presented them to a vote to take one forward to build overnight. As it was 2 ideas were melded and three dedicated programmers worked through the night and morning to give us a working application to pay with.

The application that was built was called “Vocal Thumbs” which enables people to voice their opinions in a way which facilitates social networking via mobile phone. We were hoping to use audio, but that was not possible in the short turnaround time, but “Vocal Thumbs” worked via text messaging, so we all went out, tagged parts of Edinburgh, found each other’s tags and tested the system.

This very intensive group working to come up with a concept, build it and test it in 2 days is a very productive way of testing a concept and gaining feedback in a very short time frame. I think though, it is very reliant on the mix of people involved. Everyone there was positive,  committed to research and motivated in coming up with new ideas, and this enthusiasm was contagious. That is not to say however, at the end of each day we were a bit tired, but that good kind of tired where you feel like you’ve achieved something.

I’m doing a presentation on the 1st of May about my work for the Signals in the City exhibition and its forced me to think about qr-codes on a deeper level than most people seem to engage with. I've come to the conclusion that  looking at qr-codes just by themselves or just in terms of their technical aspects is a rather superfical approach.

The thing about qr-codes that really interests me is that they are physical world hyperlinks: how does this affect people? what impact does this have on social activities mediated by computers/ handheld devices?  It is this linking between physical and virtual spaces that I find intriguing, not the advertising, or the idea that I could call a taxi just by taking a photo of it (with its qr-code emblazoned on its side), not the idea of buying a bottle of coke just by taking a photo of the vending machine that it is in. Although these are amazing ideas this is where most people stop because these ideas in themselves are money making and sometimes I think that this can limit people’s ability to push an idea to its limits.

We need to think about how a user interacts with a mobile phone, their expectations when they take a photograph, what it means to be “in the world” physically while interacting in virtual space. People multitask when they use mobile phones, their attention spans are short and usually data rates are an issue. How do these affect all affect the experience of the user?

Going back to the physical word hyperlinking, if we stop for a moment and question the semiotics of such an act there is so much in this it could be a book in itself. In the 3^rd year of my undergrad degree I did performance studies, and the most informative aspect of the whole year was a research project I did on the Semiotics of the Theatre Experience. I never thought such a project would be useful now, but it is – semiotics of space, breaking down of actor vs audience space could be related to breaking down of virtual vs physical space where the audience belongs to the physical world and the actors to the virtual….