Table 1 The final weighted three-level index system

Operability (0.251)

Integrability (0.091)

Ratio of mapping the primary key (0.032)

Ratio of mapping data elements (0.030)

Ratio of interconvertible data elements (0.029)

Portability (0.082)

Reliable data migration (0.082)

Selectivity (0.078)

Sufficient data elements as inputs for feature engineering (0.020)

Sufficient data elements as outputs for feature engineering (0.019)

Measurement selectivity in data inputs for feature engineering (0.020)

Measurement selectivity in data outputs for feature engineering (0.019)

Completeness (0.254)

Integrity of data elements (0.066)

Integrity of data elements as inputs in predictive modeling (0.017)

Integrity of data elements as outputs in predictive modeling (0.016)

Integrity of data values as inputs in predictive modeling (0.017)

Integrity of data values as outputs in predictive modeling (0.016)

Integrity of temporal information (0.062)

Integrity of timestamps as creating data (0.032)

Integrity of timestamps as creating values with data (0.031)

Integrity of data state (0.063)

Integrity of data state in available (0.063)

Data balance (0.063)

Adequate data (0.020)

Balance of input data (0.021)

Balance of output data (0.022)

Correctness (0.264)

Data accuracy (0.087)

Accurate data formats (0.013)

Accurate data types (0.015)

Right level of granularity (0.015)

Accurate measurement of data (0.015)

Unambiguity of data elements (0.015)

Unambiguity of measurement of data (0.014)

Data consistency (0.089)

Consistent measurement of data (0.031)

Consistent metric calculations (0.030)

Consistent metric units (0.028)

Data compliance (0.089)

Data elements for compliance (0.023)

Data measurement for compliance (0.022)

Standard timestamps for compliance (0.022)

Standard time logs for compliance (0.023)

Timeliness (0.231)

Data timeliness (0.231)

Timeliness on recording data (0.113)

Frequency on recording data (0.118)