Call Back is 1) to return to a place in order to see someone or collect something; 2) higher than normal pay for the workers who have been called back to work, or have been given assurance of work for a certain period; 3) In computer programming, a callback is any executable code that is passed as an argument to other code, which is expected to call back (execute) the argument at a given time; 4) an inability of an investigator to make contact with a particular designated sample unit at the first attempt raises certain problems of bias due to non-response.
Related Definitions in the Project: The Project Management
