These are the most common sections:
State the objectives of this document at a high-level.
State the scope of the testing strategy, what will the testing concentrate around, at high-level; leave details for the Testing Scope.
State the testing activities and what documents result from these activities; for example a testing activity is Test Planning and the document resulting is the Master Test Plan or Test Plan.
Give the timelines around which the project is planned and where testing fits in this schedule.
I find that a diagram has a high-impact on the user (a Georgia rule of thumb is that I use color and diagrams to break the boredom of the text).
Describe the diagram in words.
The Project Charter or Master Test Plan usually state all the items in scope, just copy and paste from these documents. Add anything that’s missing or has changed from the last review.
Then state any items that are Out of Scope.
State all the risk that you envision, the higher the risk – the higher the test priority.
When you start testing you will want to start with the high-priority items, then test medium-priority and if time permits test low-priority functionality.Risk Analysis is very important from this point of view because it drives the whole test strategy. When giving the risk state how to you plan to mitigate (to alleviate, to make less severe) and what is the contingency plan (back-up plan in case this happens).Additionally you may want to say what is the impact of each risk.