Do not include context for the sake of including context: Rather, provide only what will help readers better understand the need and, especially, its importance.
Consider anchoring the context in time, using phrases such as recently, in the past 10 years, or since the early 1990s.
To this end, they must emphasize both the motivation for the work and the outcome of it, and they must include just enough evidence to establish the validity of this outcome.
Papers that report experimental work are often structured chronologically in five sections: first, Introduction; then Materials and Methods, Results, and Discussion (together, these three sections make up the paper's body); and finally, Conclusion.
To reach their goal, papers must aim to inform, not impress.
They must be highly readable — that is, clear, accurate, and concise.In a sense, they reveal the beginning and end of the story — briefly — before providing the full story.Second, they move the more detailed, less important parts of the body to the end of the paper in one or more appendices so that these parts do not stand in the readers' way.Finally, they structure the content in the body in theorem-proof fashion, stating first what readers must remember (for example, as the first sentence of a paragraph) and then presenting evidence to support this statement.In the Introduction section, state the motivation for the work presented in your paper and prepare readers for the structure of the paper.Write four components, probably (but not necessarily) in four paragraphs: context, need, task, and object of the document.At the beginning of the Introduction section, the context and need work together as a funnel: They start broad and progressively narrow down to the issue addressed in the paper.An explicit preview would be phrased much like the object of the document: "This section first . Do not make readers guess: Make sure the paragraph's first sentence gives them a clear idea of what the entire paragraph is about.If you feel you cannot or need not do more than list items, consider using a table or perhaps a schematic diagram rather than a paragraph of text.Start by stating the actual situation (what we have) as a direct continuation of the context.If you feel you must explain recent achievements in much detail — say, in more than one or two paragraphs — consider moving the details to a section titled State of the art (or something similar) after the Introduction, but do provide a brief idea of the actual situation in the Introduction. Emphasize the contrast between the actual and desired situations with such words as but, however, or unfortunately.