The first thing you should firmly remember: the abstract is a brief characteristics of the printed work, not its paraphrase. The main purpose of any abstract is to give a potential reader an idea about the content of the article. The abstract should clearly explain what it is about this work and how it can be interesting to the reader.
Starting to write the resume, do not try to squeeze into it a fragment of the text of the main article. Your task is to briefly and accurately Express its essence. Don't forget that the abstract should not be lengthy. Its optimal amount is one third-half of a sheet of A4, typed in 12 point. That is about 500-1000 characters without a space.
Annotation the easiest way to make on the basis of the four universal questions: "Who?" "What?" "What?", "For whom?". That is, in the abstract you should explain who the author is and what the level of his professional qualifications, what is work, what its internal content, for whom it can be interesting or useful. In the abstract to a scientific article describe the main idea presented in this work.
Keep in mind that in the abstract to a scientific article, need to mention sources used in work to describe the process of writing the article or to retell the content of individual paragraphs. Abstract – it is simply a feature article that allows you to create on her overall impression. Accordingly, the abstract should be objective and contain facts only.
During the writing of the annotations pay special attention to your writing style. Try to avoid long and complex sentences. Your thoughts must be stated more briefly and clearly, since this was the style of presentation facilitates reading comprehension. Also keep in mind that scientific articles are never written in the first person, so the annotations should not be expressions such as "in my work", "I believe", "my scientific position", etc. the same applies to cases where you write annotation on other people's articles. The text should be as impersonal and objective.
Try not to overload the abstract and highly specialized terms, even if the article they are used in large quantities. A good abstract should be understandable to anyone, even not a specialist in this particular science.