- The idea that users could interact with a range of devices that work together seamlessly, without the user knowing. e.g. clothes could have tags so that the washing machine knows how to wash them
- Each item would need an individual ID provided by an RFID (Radio Frequency Identification) - could be used in mobile phones to pay for items, like an Oyster Card.
- Visual barcodes or 'tags' can be used as another form of identification
- Semacodes can be downloaded an printed, and can be photographed by a mobile phone, which will transport the user to a companies website.
- GPS (Global Positioning System) can be used to track devices and items for security
- there are also issues of personal privacy
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