1. What is boundary value analysis? 2. What is alpha testing and beta testing? 3. One difference between the human-computer interface of a smartphone and that of a desktop computer involves the...

1.
What is boundary value analysis?

2.
What is alpha testing and beta testing?

3.
One difference between the human-computer interface of a smartphone and that of a desktop computer involves the technique used to alter the scale of an image on the display

screen to obtain more or less detail (a process called “zooming”). On a desktop, zooming is typically achieved by dragging a slider that is separate from the area being displayed, or by using a menu or toolbar item. On a smartphone, zooming is performed by simultaneously touching the display screen with the thumb and index finger and then modifying the space between both touch points (a process called “double touch— spread” to “zoom in” or “double touch—pinch” to “zoom out”).

a. Based on ergonomics, what arguments can be made in support of this difference?

b. Based on cognetics, what arguments can be made in support of this difference?