This morning i was looking online for articles that could lead me to a method that can be used to measure/quantify usability & user experience. The method i was interested in finding more information about, is about whether it is possible to have a set of good practices that can help in grading an overall system, both in it's prototype stage and even when creating mockups.
Obviously heuristic evaluation and user testing are key elements in developing a good user experience, but i was wondering if before these stages begin and testing is conducted there might possibly be a method for grading your mockups/prototypes internally before going forward to stakeholders and begin testing?
All answers and feedback are welcome as of yet i have been unable to find something that is similar to what i'm describing, i've read up about:
SUM (Single Usability Metric) - http://www.stefanwobben.com/usability/the-single-usability-metric/
System Usability Scale - http://www.measuringusability.com/blog/task-comp-sus.php