Multi-attribute global inference of quality (MAGIQ) is a multi-criteria decision analysis technique.
MAGIQ is based on a hierarchical decomposition of comparison attributes and rating assignment using rank order centroids.
The MAGIQ technique is used to assign a single, overall measure of quality to each member of a set of systems where each system has an arbitrary number of comparison attributes.
There is little direct research on the theoretical soundness and effectiveness of the MAGIQ technique as a whole, however the use of hierarchical decomposition and the use of rank order centroids in multi-criteria decision analyses have been studied, with generally positive results.
Anecdotal evidence suggests that the MAGIQ technique is both practical and useful.