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Subject achievement indicators, or SAIs, are a numerical representation that place Year 12 students in a rank order to show how they have achieved compared with other students in their subject-group, within their school. Teachers assign SAIs at the time students exit Year 12.

The highest achieving student in a subject-group is assigned an SAI of 400, and the lowest achieving student in a subject-group is assigned an SAI of 200. Other students are assigned numbers between 400 and 200 to represent their position in the rank order. SAIs are the primary information used to calculate Overall Positions (OPs) and Field Positions (FPs).

BonSAI_2014 is a software application designed by the QCAA for schools to assist with the allocation and checking of SAIs in a realistic and convenient way. BonSAI_2014 allows teachers to use existing data from the Student Data Capture System (SDCS) to generate and check SAI distributions for each subject.

The BonSAI_2014 software is used by the QCAA to check SAI distributions, so the checks used by schools are the same as those performed by the QCAA.

SAI Fact sheets

Video tutorials

Video tutorials to assist teachers to understand SAIs and how to use the BonSAI program are available from the BonSAI videos page.


BonSAI has been upgraded and replaced with BONSAI_2014.4.

User guide

The BonSAI_2014 User guide contains comprehensive information about installing and using the program to assign and check SAIs.


BonSAI_2014.4 replaces all previous versions of BonSAI. Please delete any existing versions of BonSAI on your system before installing BonSAI_2014.4.

Download the file and follow the installation instructions below.

Sample data

BonSAI contains a set of sample data for "Example School" to help teachers use the program. Use the link below to download and print sample class lists and Forms R6. The BonSAI User guide gives information about using the "Example School" data.

Need help or more information?

If you have any queries, please email and we will get back to you as soon as possible.

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