Errors occur more often when _____.

Good system design prevents data entry errors by 

(i) Designing good forms with plenty of space to write in block capitals 

(ii) By giving clear instructions to a user on how to fill a form 

(iii) Reducing keystrokes of an operator 

(iv) Designing a good keyboard

Choose the correct answer from the following given codes: 

The main problems encountered in off-line data entry are _____

(i) data are entered by operators 

(ii) data entered by hand in forms batched and forms may be missed or misread 

(iii) errors are detected after a lapse of time 

(iv) data are entered by users

Choose the correct answer from the following given codes: