There are various important things that must be taken into account when writing for a publication, in order to ensure features are done to a professional standard.
For example, researching around the subject matter of the article, a journalist may be writing, is critical to ensure the credibility of a piece. As if a feature isn’t factually correct it may not only damage the reputation of the writer, but it could also damage the reputation of the publication.
Finding both interesting and original facts to write about, is key in order to engage your audience. No one wants to read a dull article. At the same time an article is likely to lose its value as a piece, if it is a re-hash of something that has been done over and over by other publications.
“Talented writing makes things happen in the reader’s mind — vividly, forcefully — that good writing, which stops with clarity and logic, doesn’t.” 
When interviewing an individual a journalist must make sure they have a reliable way to record your notes. Such a dictaphone, you may also take notes of a convocation, but be sure to always have a back up.
When writing from the field it is important to both observe and describe a situation, in order to relay an accurate account of what may be happening to your audience. A good journalist will make sure they are well informed about a situation, individual or event when writing an article.
“The germ of a story is a new and simple element introduced into an existing situation or mood.” 
All these techniques better prepare a journalist for creating a good, well rounded, piece of journalistic work.
 Samuel R Delany. About Writing: Seven Essays, Four Letters, and Five Interviews. (2006). Wesleyan University Press.
 Malcolm Cowley. Writers at Work: The Paris Review Interviews, First Series. (1977). Penguin Books.