A computerized testing system for evaluating skills of formatted product producers, the system comprising a buggy formatted product generator operative to introduce at least one formatting mistake into a formatted product thereby to generate a buggy formatted product and to generate and display on a computer screen to an applicant user, a representation of the buggy formatted product a debugging interface operative to provide a platform enabling the applicant user to attempt to correct the at least one formatting mistake, and an applicant user monitor operative to monitor the debugging interface and to provide to an applicant evaluating user, at least one output characterizing the applicants attempt to correct at least one formatting mistake.