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Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.
In information retrieval, an index term (also known as subject term, subject heading, descriptor, or keyword) is a term that captures the essence of the topic of a document. Index terms make up a controlled vocabulary for use in bibliographic records .
Next, a call number (essentially a book's address) based on the classification system in use at the particular library will be assigned to the work using the notation of the system. Unlike subject heading or thesauri where multiple terms can be assigned to the same work, in library classification systems, each work can only be placed in one class.
It is important that the heading be unique; if there is a conflict with an identical heading, then one of the two will have to be chosen: Since the headings function as access points, making sure that they are distinct and not in conflict with existing entries is important.
In most implementations, many worksheets may be located within a single spreadsheet. A worksheet is simply a subset of the spreadsheet divided for the sake of clarity. Functionally, the spreadsheet operates as a whole and all cells operate as global variables within the spreadsheet (each variable having 'read' access only except its containing ...
For example, in the Library of Congress Subject Headings [6] (a subject heading system that uses a controlled vocabulary), preferred terms—subject headings in this case—have to be chosen to handle choices between variant spellings of the same word (American versus British), choice among scientific and popular terms (cockroach versus ...
Cutter made an explicit statement regarding the objectives of a bibliographic system in his Rules for a Printed Dictionary Catalog. [7] According to Cutter, those objectives were 1. to enable a person to find a book of which any of the following is known (Identifying objective): the author; the title; the subject; the date of publication
The text that is linked from is known as anchor text. A software system that is used for viewing and creating hypertext is a hypertext system, and to create a hyperlink is to hyperlink (or simply to link). A user following hyperlinks is said to navigate or browse the hypertext. The document containing a hyperlink is known as its source document.