Dfd symbols are referenced by using all letters for the symbol name.

Ineed to know the anwser to all these questions

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication

Which email writing etiquette should ariel follow to let people know that she received their message? a. reply to their messages immediately b. use formal language c. specify the email's intent in the subject field d. be direct when writing the reply