SANGWIN, C.J., 2015. Who uses STACK? A survey of users of the STACK CAA system, May 2015. 14pp.
STACK is online software which implements a question type designed to assess mathematics and is described
in more detail in Section 2 below. This document contains the results of a survey of users of
STACK. STACK is open source software which is freely available. In the year ending 1st April 2015
STACK was downloaded 10168 times from the Moodle plugin database. However, it is difficult to know
how many people actually use STACK and this does not equate to numbers of live servers. Since users are
at liberty to download and use the software the developers have no intrinsic mechanism for tracking usage,
which a commercial licence might provide. The goals of the survey are (i) to provide a minimum benchmark
for the number of STACK users, (ii) understand how STACK is being used in extent and purpose of
use, (iii) provide users with a mechanism to suggest changes or new features.