With more than 1.2 million records, on average, being linked every week by the WA Data Linkage BranchThe specialist team at the Department of Health who are responsible for developing and maintaining the WA Data Linkage System, performing data linkage, and the facilitation of access to linked data. (DLBData Linkage Branch: the specialist team at the Department of Health who are responsible for developing and maintaining the WA Data Linkage System, performing data linkage, and the facilitation of access to linked data.), and a dynamic and constantly changing system, it is important to ensure that the links we make between records and chains are of the highest quality. 

About Linkage Quality

There are many ways to assess the quality of both existing and proposed links and DLB employs a variety of strategies and tools to ensure that our linkage system contains the highest quality links.

For more information you can download DLB’s Linkage Quality Paper.

About Dataset Quality

The quality and completeness of the records that are provided to DLB influences the quality of the links that can be made between them. We are currently working to produce Data Quality Statements, to provide insight into the characteristics of the many datasets that we hold, and to help users of linked data understand some of the related challenges that DLB face in linking them together.

Data Quality Statements for routinely linked data sets (such as Birth Registrations, and Electoral Roll enrolments) are now available in the Data Linkage Branch Reports area of the Downloads section.