GeTag is an application that allows to manage virtual tags. A virtual tag is a kind of digital Post-It that can be viewed and edited from a mobile device like a cell phone or any other device able to determine its location. These tags can be displayed on a map, but also as augmented reality features, in which case they will appear in superposition of the user's current view.

For instance, a mountain guide tagging an area where he suspects a risk of avalanche automatically informs other users that are approaching this critical place. A second example could be about tagging restaurants and let people to post their comments.

Services allowing information geocoding can be qualified in two categories, each one having one main advantage and one main disadvantage:

• The non-collaborative services, where a particular entity put tags. The quality of the information is often good, but costs a lot and isn't necessarily up to date.
• The collaborative services, where the users put tags by themselves. The information is free and is often updated, but the user has no idea about the quality of the data.

Arx iT introduces the worldwide first solution that allows to take the advantage of the two preceding ones. It's an electronic trust engine able to manage and inform the user about the relevance of a piece of information in a particular context. Concretely, these trust engines analyze the users comments from the tags and create virtual communities of people sharing the same tastes and interests. Thus, the more a user takes part of the system, the more the information he receives become relevant.

Show tags on map, but also through augmented reality:

How does GeTag know what is pertinent for you?

1. Read other's comments or write your own one.	2. Tell whether you agree or not with other's comments.
3. Your trust links and your friends' ones are updated accordingly.	4. GeTag shows you only pertinent information according your tastes.

• Article in Tribune de Genève (2010-09-01)
• Interview of Michel Deriaz at Radio Cité (2010-09-01)
• Article in GHI (2010-09-01)
• Article in 20 Minutes (2010-09-01)
• TV presentation at Léman Bleu (2010-08-31)
• Interview of Pierre Maudet on the RSR (Radio Suisse Romande) in Les Urbanités show (2010-08-31)
• Article in Vivre à Genève (2010-04-01)
• TV presentation at Télévision Suisse Romande (2010-02-12)
• Article in ICTjournal (2010-02-10)
• Article in Market (2009-12-28)
• Article (3 pages) in Géomatique Expert (2009-11-10)
• Radio presentation on the RSR (Radio Suisse Romande) in Les Urbanités show (2009-11-02)
• TV presentation in the 18:30 news on Léman Bleu (2009-10-20)
• Article in the Tribune de Genève (2009-10-09)
• Article in the magazine Bilan (2009-08-26)

• Screenshots GeTag