"Howson believes it is time to ditch Popper's notion of capturing the scientific process using deductive logic."

Another person who doesn't understand Popper. It's as if the guy believed cars were nothing but wheels. Deduction is only part of Poppers theory. The theory can in fact subsume just about any method (till it's shown not to work). It's really just disciplined evolution. It's certainly not merely about using deduction.