Web 3.0 is a popular term for the semantic web. Semantic is the meaning of words. The semantic web is coded in a way that makes computers able to read and understand the information that people give them.
Until a few years ago, computers have only been able to read single characters or characters without understanding what they meant in different contexts. The semantic web is not limited by signs, but understands words and phrases and can create associations between different phenomena.
For computers to be able to both read and understand, they need a lot of metadata, which is data about data. In Web 3.0 these metadata will be partially filled by people, but will not only exist in a closed system such as a database as in Web 2.0. The benefits of databases are the inspiration source for Web 3.0. The database is composed so that all the information in it can be coordinated and cross-referenced.
All data and metadata will be available without being restricted in web 3.0. This means that all servers draw on each other. This will facilitate the work with computers, because all metadata will complement each other and thus be able to find the most relevant data for us. Metadata do exists today. People can for example feed their computer with metadata. This can say something about the individual computer user’s preferences and navigation patterns. With web 3.0 one would generate fewer tags themselves, because the computer will be able to search and find out what we want to do from our data volume and movement on the web.
The successor to today’s metadata and tags (XML) are the so-called RDF (Resource Description Framework) techniques. RDF offers developers the opportunity to write programs included tags without having to worry about different varying contexts. This means that all data on the network becomes available and easy to tag, which could make all the data tags. And these tags will not be restricted to data inside and between computers but could also be incorporated into a product like groceries. For example, a small chip on a milk carton. This chip contains information that your refrigerator can read. If the milk is too old, the RDF chip sends you an e-mail and your mail program itself send information to your shopping list to by milk, because your computer, your refrigerator, your e-mail program and your milk carton can read and understand the same language (RDF).
The purpose of the semantic Web is to make computers better to be able to sort, identify and respond to information, people and other computers exchange.
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