The sympto-thermal method involves daily recording of body temperature, noting changes in vaginal mucus and other signs of ovulation.

Ltd., which involved jukeboxes and cassette-tape recording.

The polysomnogram involves continuous recording of sleep brain waves and a number of nerve and muscle functions during nighttime sleep.

Galton's inquiries into the mind involved detailed recording of people's subjective accounts of whether and how their minds dealt with phenomena such as mental imagery.

This involved some excavation, building recording and archival research.

High risk activities' include criminal investigations involving covert surveillance or recording and/or confrontation of terrorists, serious criminal or extremist or violent political groups.

Contemporary oral history involves recording or transcribing eyewitness accounts of historical events.

Polysomnography may involve electroencephalography, electromyography, electrocardiography, air flow monitoring and audio-video recording.

Thus our chosen methods involved both a careful observation and recording of firsthand experience and the development of second-order models.

It involves recording, analysing, sorting, summarising, calculating, disseminating and storing data.