Sophie Han S Case Study

How does it Work?

Physical Hyperlinks system provides physical hyperlinks from the physical world to virtual resources on the Web. In this paradigm, which is designed to support nomadic users, the user employs a handheld, typically wirelessly connected, sensor-equipped device to read identifiers extracted from, attached to, or near physical entities. Those identifiers undergo resolution into Web resources related to the physical entity. Thus physical entities are bound to URLs referenced when the user senses their identifiers with a reader such as a barcode scanner.

Compared to hyperlinks in HTML, physical hyperlinks appear as tagged physical objects instead of marked text or images; the 'mouse' is a reader with which they scan instead of 'clicking'; the result appears on a browser in their hand.

When the user clicks on a physical hyperlink the Web resource they obtain may be information or a service provided to the client, or an action in the environment. Users can select the type of effect that occurs when clicking on a physical hyperlink. Variety of applications as Web services are induced application-specific hyperlinks onto the physical world.

How is it used?

physical hyperlinks is used of 1D and 2D barcodes, RFID tag, fingerprint.

1D and 2D barcodes is used of Camera phone application. Barcodes are taken by photo pictures and internet page came out. and then it shows online webpage with image and sounds. In Japan today, 2D barcodes called QR ("Quick Response") codes, originally used for inventory management, are now proliferating on business cards, in magazine ads and product packaging. QR codes displayed on All Nippon Airways kiosks now allow cellphone users to travel with paperless electronic tickets. On 3G phones with good built-in cameras, even QR codes on billboards can be resolved by the camera phone, to play a movie trailer, provide a coupon code, etc

RFID tags are used in many industries. An RFID tag attached to an automobile during production can be used to track its progress through the assembly line. Pharmaceuticals can be tracked through warehouses. Livestock and pets may have tags injected, allowing positive identification of the animal. Since RFID tags can be attached to cash, clothing, everyday possessions, or even implanted within people, the possibility of reading personally-linked information without consent has raised serious privacy concerns.

Even QR codes on billboards can be resolved by the camera phone, to play a movie trailer, provide a coupon code, etc.