Discovering is the activity of seeking out objects of research, research results, or other information which is useful in a given search perspective. Discovery includes very directed techniques such as advanced querying of databases, less directed techniques such as simple searching, and more serendipitous ones as browsing, which would include faceted browsing. (It is different from Information Retrieval, which is a structured way of extracting some piece of information or some specific subset of objects from a resource.)