2. Experimental methods: In the computer network environment, information or conclusions are obtained through laboratory experiments, field experiments, computer simulation experiments and man-machine combination experiments.
3. Internet information collection method: all kinds of information published, transmitted and stored through computer networks.
4. Access to information: interviews with newspapers, industry websites, documents, magazines, radio and television.
5. Survey methods: including interviews, telephone interviews and questionnaires.
6. Search method.
7. Acquisition method.
Extended data
The activity and process of obtaining original information through certain technical means and methods in a certain range. Access to information is not single, but diverse. In daily life, the way we choose to obtain information should be adapted to local conditions and learn from each other's strengths. In different periods, appropriate and effective methods should be chosen.
Obtain information through certain technical means, ways and methods. Due to different needs, the technical means, ways and methods of information acquisition are also different, such as reconnaissance and technical appraisal in solving crimes, and information retrieval tools and means must be used in scientific research.