Table 1.

Critical examination technique

Purpose	What is achieved?	Is it necessary and why?	What else could be done?	What should be done?
Place	Where is it done?	Why there?	Where else could it be done?	Where should it be done?
Sequence	When is it done?	Why then?	When else could it be done?	When should it be done?
Person	Who does it?	Why that person?	Who else could do it?	Who should do it?
Means	How is it done?	Why that way?	How else could it be done?	How should it be done?