Glossary of terms used on this site

Term	Main definition
Openness	A fair information practices principle. There should be a general policy of openness about developments, practices and policies with respect to personal data. Means should be readily available to establish the existence and nature of personal data, and the main purposes of their use, as well as the identity and usual residence of the data controller. Closely linked with transparency.
Opt-In	One of two central concepts of choice. It means an individual makes an active affirmative indication of choice; i.e., checking a box signalling a desire to share his or her information with third parties. The General Data Protection Regulation's definition of consent as requiring a "clear affirmative act" makes opt-in the default standard for consent acquisition.
Opt-Out	One of two central concepts of choice. It means an individual