Introduction to Combinatorial Testing - Automatic Generation of Combinatorial Test Data - page 12

Table 1.1 Parameters of a web application model
Operating system

Web browser Flash player Cookies

Microsoft windows Internet explorer 10 Enabled

Linux Firefox 11 Disabled

Mac OS X Google chrome 12

Safari 13

Not installed

Table 1.2 2-Way covering array for a web application model
OS Browser Flash Cookies

Mac OS X Google chrome Not installed Disabled

Mac OS X Firefox 11 Enabled

Microsoft windows Firefox 13 Disabled

Microsoft windows Google chrome 10 Enabled

Mac OS X Safari 12 Disabled

Microsoft windows Internet explorer 11 Disabled

Linux Firefox 10 Disabled

Linux Google chrome 13 Enabled

Microsoft windows Internet explorer Not installed Enabled

Microsoft windows Google chrome 12 Enabled

Mac OS X Safari 13 Enabled

Mac OS X Safari 10 Enabled

Linux Firefox 12 Disabled

Linux Google chrome 11 Disabled

Linux Firefox Not installed Disabled

Mac OS X Safari Not installed Disabled

Mac OS X Safari 11 Disabled

Microsoft windows Internet explorer 10 Disabled

Microsoft windows Internet explorer 12 Disabled

Microsoft windows Internet explorer 13 Disabled

” stands for logical implication. A->B enforces that if A is
true, then B must be true. We know that there are some versions of Internet Explorer and
Safari for other operating systems, but these versions are all discontinued and are rarely
used. So it is reasonable to exclude these rare combinations.
A 2-way CA for the web application with regard to the constraints is shown in
Tabl e 1.2 .

Here the symbol “ − >