Manufacturers may identify the different components of their products in order to make them easier to make. Businesses may require their employees to wear badges and/or ID tags in order to verify that they are who they say they are.
Perhaps the most important application of these systems, however, is their use as a security device. A person without the proper identification entering a restricted area may trip the system and alert security. These systems work by cross-referencing the given card, badge, tag, DNA, or other forms of ID with the identification information stored in the system. We live in a world where identity fraud is rampant, especially online, and as such we need more up-to-date identification systems to help us keep our identities.
There are many applications in which identification systems are used. For instance, a library will want to identify each book it has. A computer can be used to make sure whether a book is in or out. Manufacturers that produce many commercial products may need to identify parts in order to ship them faster and more accurately. The most important applications of identification technology would have to be security and identity protection.
Many businesses require that their employees wear badges or tags with their identifications on them. An employee without the proper identification may not be allowed into certain areas of the building. This is designed as a security measure, so that unauthorized people do not mess around in a business's vital areas.
The police keeps vast records of identities in their systems in order to help them keep track of criminals. They use DNA and fingerprints to keep records of people who have committed a crime. This way the police can use the fingerprints or DNA at a crime scene to find out who committed the crime quickly and effectively.
Identification technology is one of the most vital technologies ever made. They are used for a wide range of applications, from libraries to the police. The identification systems used by people are able to keep track of vast amounts of information at once. A library may be able to contain thousands, if not millions, of books in its database. The same goes for the police, keeping thousands of identities on record. A world without identification systems would not be a good world to live in.