Data quality assessment
AssigneeInternational Business Machines Corporation
InventorsThomas Hollifield, Yannick Saillet
Life of this patent
Estimating the term…
Abstract
According to one embodiment of the present invention, a system assesses the quality of column data. The system assigns a pre-defined domain to one or more columns of the data based on a validity condition for the domain, applies the validity condition for the domain assigned to a column to data values in the column to compute a data quality metric for the column, and computes and displays a metric for a group of columns based on the computed data quality metric of at least one column in the group. Embodiments of the present invention further include a method and computer program product for assessing the quality of column data in substantially the same manners described above.
Claims25
A computer-implemented method for assessing the quality of data comprising:
- assigning a pre-defined domain to one or more columns of the data based on a validity condition for the domain;
- applying the validity condition for the domain assigned to a column to data values in the column to compute a data quality metric for the column;
- and
- computing and displaying a metric for one or more groups of columns based on the computed data quality metric of at least one column in each group.
A system for assessing the quality of data comprising:
- at least one processor configured to:
- assign a pre-defined domain to one or more columns of the data based on a validity condition for the domain;
- apply the validity condition for the domain assigned to a column to data values in the column to compute a data quality metric for the column;
- and
- compute and display a metric for one or more groups of columns based on the computed data quality metric of at least one column in each group.
A computer program product for assessing data quality comprising:
- a computer readable storage medium having computer readable program code embodied therewith for execution on a first processing system, the computer readable program code comprising computer readable program code configured to:
- assign a pre-defined domain to one or more columns of the data based on a validity condition for the domain;
- apply the validity condition for the domain assigned to a column to data values in the column to compute a data quality metric for the column;
- and
- compute and display a metric for one or more groups of columns based on the computed data quality metric of at least one column in each group.
Dependencies are inferred from the claim text.