S : Strategy —
Your strategy is your blueprint for writing, your overall plan based on your thesis.
H : Heuristics — 
Heuristics are your “Rules of thumb”–   your strategy filtered through common sense. Select the best presentation of your message for your purpose, audience, and medium of presentation.
O: Organization —
Plan to organize your essay around a unifying thesis, with a strong beginning, appropriate development, and an effective conclusion.
W: Writing –
Writing is a process that involves various stages of development. Write your first draft, working out your plan, knowing you will have an opportunity to improve your essay later.
I : Improving —
Improving your writing means revising to optimize your essay for your audience and purpose.
T : Tracking —
Tracking your writing means following-up, reviewing and redeveloping as needed to achieve your purpose.