editor: S++ group
most of the time the user tests are very difficult to test the form efficiency, the usual practice is to form, on-line users later statistics or stay time to consider the efficiency of the form, but this approach only to have after the line form to consider. So, in a form, in the design process, is there any scientific way to evaluate the efficiency of the designed form?
Card, Moran & Newall in "human-computer interaction" (The Psychology of Human psychology Computer Interaction) the first mention of the GOMS model, in the early stage of human-computer interaction design has also launched a gust of wind.
so what is GOMS?
called GOMS is Goals, Operators, Methods, Selection, Rules, translated into Chinese is the goal, operation, method, selection rules.
Goals refers to the final result of the task.
Operators refers to all the actions that occur during the process, including control usage, fill in, select, click, float, and so on.
Methods refers to the process of describing how to accomplish a goal.
Selection Rules is the rule of judgment, which is the different rules to follow in different conditions.
GOMS can objectively record the whole process of how the user fills in the form. And it provides a scientific analysis method for complex forms filling process.
provides a more efficient way of computing the efficiency of a form design scheme by simply comparing it to different versions of the test.
through GOMS, you can get more reliable scientific data to prove your design forms fill in the efficiency of the program.
GOMS has a lot of branches, but what are the ones we can use,
, CMN-GOMS, CPM-GOMS, KLM-GOMS, NGOMSL, and so forth.
, but in the form to fill out the GOMS operation, we need to focus on the keystroke model. That is to say, KLM (Keystroke-level model). KML is a simplified model system, he relatively weakened the concept of GOMS, more emphasis on the O, that is, the operation part. >