ABS TRIAL OF PROTARI
The ABS is conducting user trials of 'Protari' - a tool to enable more users to gain insights from integrated data while preserving confidentiality. Protari is being developed collaboratively with Data61 under the National Innovation and Science Agenda's Platforms for Open Data Program. In the initial stage of the trial, the ABS is inviting participation from analysts associated with Australian Commonwealth or State Government agencies, particularly partner agencies of the Multi-Agency Data Integration Project.
Protari is an Application Programming Interface (API) that enables an authorised user to generate aggregate tables that are confidentialised on-the-fly from underlying unit-record data. There are two ways to access Protari. Users can either use the ABS Protari Table Interface, or query the API directly using their own code/software.
PARTICIPATION IN THE PROTARI TRIAL
Consider participating in the Protari trial if:
- your analysis is for statistical or research purposes
- you accept that perturbed output is fit for your purpose
- you don't currently use the ABS DataLab.
If you are invited by the ABS to participate in the trials you will receive details on how to submit an 'Application to Participate in the Protari Trials'. The invitation will also outline expectations regarding feedback and user experience testing to inform further Protari development. To become an authorised user for the Protari trials an invited user must:
- be registered, and joined to their organisation in the Registration Centre, thereby agreeing to comply with the Registration Centre's Terms and Conditions.
- submit an 'Application to Participate in the Protari Trials' to firstname.lastname@example.org. This application will include agreeing to the 'Terms and conditions to access Protari as a participant in the ABS Trial'.
If you would like further information, contact email@example.com.
USING THE PROTARI TABLE INTERFACE
The Protari Table Interface is suitable for users if:
- your needs can be met through tabular analysis, and
- you prefer 'drag and drop' software.
For more information on how to use the Table Interface, see Using the ABS Protari Table Interface
QUERYING THE PROTARI API DIRECTLY
Querying the API directly is suitable for users if:
- you already use compatible software (such as R) in your own environment
- you are interested in using Protari features not currently enabled in the Table Interface.
API features include allowing authorised users to program the API to create customised interfaces, such as interactive dashboards or maps that other authorised users can then use.
For more information on how to use the API directly, see Data61's Protari documentation.
PERTURBATION TO PROTECT CONFIDENTIALITY
To minimise the risk of identifying individuals in aggregate statistics, all outputs derived through Protari are perturbed. Perturbation, or the random adjustment of the data, is considered to be the most satisfactory technique for avoiding the release of identifiable data while maximising the range of information that can be released. Perturbation may change the true cell value by either increasing or decreasing the value by a small amount. Within this context, although cells may appear to contain none, or all, of the relevant population, this is not necessarily a reflection of the true value of the cell. These adjustments result in introduced random errors, but with almost no bias. The information value of the table as a whole is retained. Further information on perturbation can be found in the 'Managing the Risk of Disclosure: Treating Aggregate Data' section of ABS Confidentiality Series, Aug 2017 (cat. no. 1160.0).
AVAILABLE DATA IN PROTARI
Users in the trial can currently apply to use Protari to analyse data based on the following product:
- Multi-Agency Data Integration Project Basic Longitudinal Extract, 2011-2016 (2011 Cohort). For explanatory information and data item lists, see Using Protari with MADIP data section in Microdata: Multi-Agency Data Integration Project, Australia (cat. no. 1700.0).