1. Define your goal
Since time began, man has asked one question:
Why are we here?
Why is the sky blue?
Why am I lighting this area?
Why is always the best place to start.
Consider the following questions:
What are you trying to achieve i.e. are you lighting for a functional purpose? To attract attention? Or to reveal the detail of a building that may have otherwise been missed? Where will the lit area be viewed from? Are there any nearby light sources that will affect your scheme?
Once you define your intent and know what you want to achieve, choosing the right products and strategy becomes simpler.