A client has requested a data entry form in which the users enter data with a 10-key number pad. When we developed the screen we used the tab button to transition from field to field as is common in web applications. The client has requested we use the enter button on the 10-key so that they can use their left hand to flip though papers. Is there any references on this topic?
At least one example is in spreadsheets. Both Excel and Google Docs have
Enter move to the next row and
Tab move to the next column. If your the end user is familiar with certain types of data entry, using
Enter may be more familiar to them.
For example see:
This is a fake example, but many financial documents are set up to be entered a single column at a time, moving down the rows until you are finished and then moving to another column. In this case, typing the number and hitting
Enter is the fastest way of doing this.
The usage matters. You might have to trust your client on this since they know the end users best. Specifically the idea of typing in numbers and using the large button at the bottom to advance to the next value is very common. See how this calculator is set up:
The large button on the bottom right is not
=. It is
+. This is because when entering multiple values, the
+ accepts the current value and readies the calculator for the next value to be input. It is set up for entering multiple values. On your site, you can't physically move the
Tab key, but you can change what the large button in the bottom right does.