A canonical data model (CDM) is a type of data model that presents data entities and relationships in the simplest possible form. It is generally used in system/database integration processes where data is exchanged between different systems, regardless of the technology used. A canonical data model is also known as a common data model.
Google Glass provide an experience known as augmented reality, where images are superimposed over what the user sees in real life. With Google Glass, these images are generally icons that provide directions, alert users to messages from contacts or give weather updates.
Although this technology's potential has been praised as a futuristic way to deliver hands-free computing, critics have pointed out its ability to distract walkers or drivers and questioned its utility for those who already wear corrective eyeglasses.
Google glasses are sometimes called Google goggles, although is is inaccurate because Google Goggles is actually a separate Google project that uses images - rather than text or voice commands - to conduct a search.
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