FOUNDATIONS OF SOFTWARE TESTING ISTQB CERTIFICATIONRequ rement 1Requirement 2Requirement 3equirement 4correctcorrectcorrectmistakes madrcquIrcmirEquirementrequirementr requirementessenEdesignedmistaketc meet.o meetmade indesigned to meetequirementrEquirementrequirementbu It to meetbuilt tobuilt to meetdesigmistakes/r ase in buildproduct worksproduwrong p oductas expecedproductdeliveredflawscorrect functional correctable defectsdesign to correctdefects ray beand ncn-functionaldefectshidden from the ITattributes deliveredteam includine testersFIGURE I l Types of error and defectTIMERequirements DesignL ve useFIGURE 1.2 Cost cf defects