Strategy : In reference to software testing, Strategy is 
the plan to execute the job or assignment given by the 
client. It is the first step towards the test plan.

Methodology : It is the process, ways or the methods which 
we use to execute our strategy or plan.

How to approach your project is called in test strategy. In 
this strategy the contents are like risks and business 
analyses, responsibilities and environment and all the 
details of the project .before test plan we are preparing 
the test strategy 
 Methodologies   is a stand of company .which stand you 
follow the this project all the
 Details should be saved in folder methodologies