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- Environmental Scientist: An active role, which is a person who conducts research or performs scientific investigations. Using knowledge of various scientific disciplines, they may collect, process, analyse, synthesize, study, report, and/or recommend action based on data derived from measurements or observations of (for example) air, rock, soil, water, nature, and other sources.
- Sensor: A passive role, which is a converter that measures a physical quantity and converts it into a signal which can be read by an observer or by an (electronic) instrument.
- Sensor network: A passive role, which is a network consisting of distributed autonomous sensors to monitor physical or environmental conditions.
- Measurement Model Designer: An active role, which is a person who designs the measurements and monitoring models based on the requirements of environmental scientists.
- Technician: An active role, which is a person who develops and deploys sensor instruments, establishing and testing the sensor network, operating, maintaining, monitoring and repairing the observatory hardware.
- Measurer: An active role, which is a person who determines the ratio of a physical quantity (such as a length, time, temperature etc.), to a unit of measurement (such as the meter, second or degree Celsius).
- Observer: An active role, which is a person who receives knowledge of the outside world through his senses, or records data using scientific instruments.
- Data collector: Active or passive role, adopted by a person or an instrument collecting data.
- Data Acquisition Subystem: In the Science Viewpoint, the data acquisition subsystem is passive role of the data acquisition community. It is the part of the research infrastructure providing functionalities to automate the process of data acquisition.
The behaviours of the data acquisition community is described at SV Community Behaviours.
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