Secondary data

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Data is qualified as secondary when it exists and is already available to companies when they need it. To be of quality, these data must be relevant, reliable, objective and above all accurate. The information must also be up-to-date.

Depending on their source, two types of secondary data are distinguished today:

  • internal secondary data.
  • external secondary data.

Secondary data are said to be internal when they are available within the company itself. These include, for example, archival files, past market research reports and activity reports. Secondary data is qualified as external when it comes from an information center that may be specialized or generalist. Examples include INSEE and chambers of commerce. Access to this external secondary data may be free of charge or subject to payment of an access fee.

Secondary data is in contrast to primary data, which was specifically collected to meet a particular need.