I am working on a application which already had user research documents, now i am adding my user research document to it. At every usability session more and more documents been created. How i ensure at a point of time that i am not going a step back in usability
Several usability practitioner (owner) had worked on one interface. I will represent it with one example, assume initial system was 30% usable
First usability practitioner done related research after usability testing application was 50% usable sounds good.He left the job
Second usability practitioner done related research without looking into previous research carried out by First usability practitioner, after usability testing application was 35% usable, he left the job
Now Third usability practitioner who what to compare current usability testing results with the previous usability practitioners documents at a point of time in project to ensure that application usability remain step forward after each iteration
Two main reason of comparing
- To make sure that "application usability is increasing gradually in the project life cycle"
- To get the feedback early in the time for example - if usability of the application is decreasing you will immediately come to know. You will stop there rectify it thus company will not save time but also money