Web Design References
Web Design Glossary: O
- On-Screen Keyboard
- A keyboard that appears on screen and accepts user input.
A person who cannot use their hands may use an on-screen keyboard combined with a head pointer.
- One-Way Mirror
- A one-way mirror is a piece of glass that is a mirror on
one side but can be seen through from the other side. One-way
mirrors are sometimes used in usability testing or focus
groups so that observers may watch the session without being
distracting or disruptive.
- In information technology, an ontology (pronounced ahn-TAH-luh-djee)
is the working model of entities and interactions in some
particular domain of knowledge or practices. It is a set of
concepts that are specified in some way in order to create an
agreed-upon vocabulary for exchanging information. A formal
ontology is a controlled vocabulary expressed in an ontology
representation language. This language has a grammar for using
vocabulary terms to express something meaningful within the
specified domain of interest.
- In programming operators are used to combine and
manipulate expressions. They tell the computer which actions