p3 syllabus and lectures

many thanks gromit

i have one another quick question.

i understand that p3 is all about application which is applying the model knowledge to the question and pick out points from the scenario relevant to the model. so basically the answer to the question always lies in the scenario. however do we also need to always give brief general explanations of what the model is for example? or do we just jump straight into applying?

for example if the question asks us to analyse the macro environment using pestel then do we first describe each and every variable of pestel and then go after applying it?