A data management system comprising: an environment data acquisition unit configured to acquire, from an environment sensor, environment data obtained by measuring a production environment where a product is produced from a raw material; a sensor selection unit configured to select a specific sensor from among measurement sensors, each of which is configured to measure a production target serving as a target of the production, according to a relevance with respect to the environment sensor; and a parameter setting unit configured to set a measurement parameter in the specific sensor based on the environment data, wherein when the environment data is out of a predetermined range, the parameter setting unit is configured to make, as the measurement parameter, a cycle for measuring the production target shorter than a value before a setting change or/and make, as the measurement parameter, a sensitivity for measuring the production target higher than a value before a setting change, wherein the parameter setting unit is configured to set the measurement parameter according to the relevance of the specific sensor with respect to the environment sensor, wherein the parameter setting unit is configured to initialize the measurement parameter when a state where the environment data is within the predetermined range continues for a certain period after the environment data is out of the predetermined range, and characterized in that the sensor selection unit is configured to decide the relevance of the measurement sensor based on a type of a physical quantity measured by the environment sensor and a correlation between a time-series change of the environment data measured by the environment sensor and a time-series change of measurement data measured by the measurement sensor. an environment data acquisition unit configured to acquire, from an environment sensor, environment data obtained by measuring a production environment where a product is produced from a raw material; a sensor selection unit configured to select a specific sensor from among measurement sensors, each of which is configured to measure a production target serving as a target of the production, according to a relevance with respect to the environment sensor; and a parameter setting unit configured to set a measurement parameter in the specific sensor based on the environment data, wherein when the environment data is out of a predetermined range, the parameter setting unit is configured to make, as the measurement parameter, a cycle for measuring the production target shorter than a value before a setting change or/and make, as the measurement parameter, a sensitivity for measuring the production target higher than a value before a setting change, wherein the parameter setting unit is configured to set the measurement parameter according to the relevance of the specific sensor with respect to the environment sensor, wherein the parameter setting unit is configured to initialize the measurement parameter when a state where the environment data is within the predetermined range continues for a certain period after the environment data is out of the predetermined range, and characterized in that the sensor selection unit is configured to decide the relevance of the measurement sensor based on a type of a physical quantity measured by the environment sensor and a correlation between a time-series change of the environment data measured by the environment sensor and a time-series change of measurement data measured by the measurement sensor.