262 Personal Content Experience: Managing Digital Life in the Mobile Age 16 NFC. In addition to RFID, barcodes can be used as a links to a certain service and receiving content indirectly. The rapid spread of camera- equipped mobile phones has boosted the use of cameras as visual scanners for reading the code. Mobile devices consider an object received by any of the afore- mentioned technologies as a message, and store it in the messaging inbox. The type of message is then illustrated in the inbox with an icon. The metadata should be used for organizing the inbox, and thus enabling the user to interact with the view: fi lter off content; change sort keys and order; and group the content. The user may select objects for further manipulation, which then leads to other GEMS phases: enjoying (viewing, listening, editing); maintaining (organizing, rating); or sharing (forward a message). Since the user did not initiate the transfer, they must be notifi ed of its arrival. The notifi cation should provide a direct link to the object, so that the user can access it quickly. However, the user may wish to discard the notifi cation because of the current use context or task. If they decide to do so, the system can provide a smaller, unobtrusive peripheral indicator that reminds the user of the received item. Depending on the type of category, current mobile devices support creation of a wide range of personal content objects, such as contacts, documents, drawings, images, messages, notes, points-of-interests, spread sheets, videos, and so forth. Obviously, creating different kinds of content objects in various formats requires different kinds of views and controls. Creating content is often one of the most frequently performed tasks with the mobile device and may be one of its main selling points. Therefore, the user interface for this task is extremely important. Since the creation task does not use metadata directly as a user benefi t (since no metadata exists yet), we do not focus on it profoundly. Instead, we wish to emphasize that the creation is a truly “once in a lifetime situation” in the GEMS model and therefore is extremely important. In addition, to enable further (and perhaps even automate some of) content management tasks, the context information that is available at the time of its creation should be captured and stored as a part of the object’s metadata. Metadata can also be added as pre-defi ned keyword tags – such as holiday, mum, dad, Xmas – that are associated with the object. The user does not have to edit the keywords; for instance, merely drag and 16 NFC (Near Field Communication) has evolved from RFID and is a short range (few centimetres) two-way wireless connectivity. It allows reading small amounts of data from other devices or tags.