| 摘要 |
A method for recording of data, including the steps of selecting a second set of individuals from a stream of individuals forming a first set of individuals, and providing said second set of individuals with an opportunity to record data on a data collection device ( 1 ). The method comprises the step of sequentially producing code carriers comprising a unique code for each code carrier. Individuals are supplied to the second set sequentially by counting the number of individuals coming to the first set. A code carrier is distributed to each individual of the second set of individuals and access to a data collection device is granted by registering the code in the data collection device. Then, data is recorded by inputting into the data collection device, automatic recording of falling off of individuals from the selection by calculating the number of unregistered codes and storing and compiling recorded data.
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