To write an effective abstract, follow these steps:
Reread the dissertation you have written with the goal of abstracting in mind. Look specifically for these main parts of the dissertation: purpose, methods, scope, results, conclusions, and recommendations. Use the headings, outline heads, and table of contents as a guide to writing your abstract. If you're writing an abstract about another person's dissertation, the introduction and the summary are good places to begin. These areas generally cover what the dissertation emphasises. After you've finished rereading the dissertation, write a rough draft without looking back at what you're abstracting. Don't merely copy key sentences from the dissertation: you'll put in too much or too little information. You should not rely on the way material was phrased in the dissertation - you need to summarise information in a new way. Revise your rough draft to correct weaknesses in organisation, improve transitions from point to point and drop unnecessary information. Be sure to fix errors in grammar, spelling, and punctuation. It's a good idea to print out your final work in order to read it again to catch any glitches that you find.