“According to Kirk (2016), The  essence of “”Formulating Your Brief”” is to “”identify the context in  which your work will be undertaken and then define its aims: it is the  who, what, where, when and how.””  It could be formal or informal as any project you think you must make  it. This phase is where you create a vision or plan for your work  (p.63).
Reference
Kirk, A. (2016). Data Visualisation: A Handbook for Data Driven Design. Thousand Oaks, CA: Sage Publications, Ltd.
Instructor’s question 
Why is it so important to formulate your brief for a data presentation? Discuss some ways/things you would do to formulate an effective brief. What are some advantages to your methods? What are some disadvantages?