Icons have long been a cornerstone of GUI design, ever since the emergence of WIMP (Windows, Icons, Menus, Pointers) by Xerox. I'd argue that given the recent app boom there's even more functionality being expressed via icons than ever before. Figuring out which icons work best is no easy task, and to compound matters even further, what makes a good icon is almost entirely dependent on the users of the icon in question. At the end of the day, it depends on whether your users have an easy time understanding and finding the icons in a given graphical user interface (GUI). In some cases it's possible to rely on well established iconographies and leverage well known symbols. But what if there is no established iconography, or what if the established symbol is losing it's relevance (like the floppy disk)?
Well traditionally you'd rely on an icon designer coupled with user testing if your budget would allow for it. But user testing is both time consuming and expensive. This is where our method takes over some of the heavy lifting and provides a more objective evaluation of the icons you're trying pick between.