Your friend has behaved very selfishly in the canteen today and so you are very upset write a diary entry in 100-120 words expressing your feelings

to create suspense.

the answer is

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.