What are the most important factor which needs to be considered while performing the following activities?

GOOD QUESTION,,,,,,,,,, NEXT ??? PLZ ASK SMART/SHORT  QUESTIONS TO ANSWER....... THANX FOR INVITATION.

we need to have a good analyses of needs, a good product then a good implementation

Realistic target.

Planning, strategy and Budget

Communication and content.

Reach

Target audience

Periodical review