user is a person who utilizes a computer or network service. A user often has a user account and is identified to the system by a username (or user name)...

For example, if user A is running a transaction that has to read a row of data that user B wants to modify, user B must wait until user A's transaction...

User experience (UX) is how a user interacts with and experiences a product, system or service. It includes a person's perceptions of utility, ease of...

A/B testing (also known as bucket testing, split-run testing, or split testing) is a user experience research methodology. A/B tests consist of a randomized...

collision, user A waits for a random time between 0 and 1 time units and so does user B. Let's say user A chooses a lower back-off time. User A then begins...

(UMTS) and 3GPP Long Term Evolution (LTE), user equipment (UE) is any device used directly by an end-user to communicate. It can be a hand-held telephone...

In the philosophy of mind, the user illusion is a metaphor for a proposed description of consciousness that argues that conscious experience does not directly...

host2 user_a -host3 +@group1 -user_b -@group2 This allows all users from host1 to login, user_a from host2 to login, no users from host3, all users on group1...

end user (sometimes end-user) is a person who ultimately uses or is intended to ultimately use a product. The end user stands in contrast to users who...

A user profile is a collection of settings and information associated with a user. It contains critical information that is used to identify an individual...