Sometimes when you read a scientific article you might feel that the authors are belittling you or aiming way to high, and you will put down the article and find something else to read. When this happens, the first thing I tend to consider is whether I am the target audience for that particular piece of writing. If I am, it might be that the authors had not decided on a target audience when it was written or have targeted the wrong publication venue, or it might just be that I am particularly interested or uninterested in that subject and so either no more or less than might be expected.
Why am I telling you this?
When we write, we often write to express ourselves and our thoughts and ideas on a topic, writing what interests us and not thinking about the person who will eventually read it. This is like designing a pair of gloves that fits us exactly and trying to market it as being suitable for everybody. We must remember that the point of scientific writing, if we aim to get it published, is for it to be read and thus spread our ideas, not solely for the sake of writing.
What should be done to help write appropriately for the audience?
Before you write your first outline, you should decide who will be your audience; not in a vague manner, for example saying anyone who is interested in hand care, but as precisely as possible, for example hospital hand care specialists. Once this audience has been identified you want to know what level of knowledge they will have on this topic. In the example, hospital specialists will likely already have a high level of knowledge and so would not want to have the basics of hand care told to them. This will make them assume the article is not for them and reduce the likelihood of them reading it. So in this case you could start the article at a high level, covering only the most pertinent points for the topic being discussed.
On the other hand, if your audience is hand care trainees you will want to include the basics, as you cannot assume that all trainees will have the requisite basic knowledge to make sense of the article. If the basics are missing then you could place a barrier in front of much of your audience.
In certain industries, the target audience is identified and idealized ‘personas’ are created to emphasise key aspects that need to be catered for. A well-known version of these is the broad terms given to people born at different times or target voter populations during elections (e.g. Mondeo Man). This allows broad generalizations to be made to highlight differences between generations and allow the average member of this group to be targeted, hopefully allowing the maximum proportion of this group to be successfully reached.
I would not suggest that you should create these personas but they should serve to remind us that a target audience will often have a lot in common and this can be catered for. However, if we write from the beginning with our audience in mind then our writing is more likely to be relevant, and read, by the people we want it to reach.