There Are Several Steps in the Process of Converting a Master's

There are several steps in the process of converting a master's thesis into a publishable article: selecting a journal, writing a query letter, preparing an original manuscript, submitting the manuscript for review, and performing the revisions the editor indicates. Why should preparation of the manuscript not occur first?

A) It would be foolish to write a manuscript without knowing the maximum length of manuscript that a journal accepts.
B) If the response to several query letters is negative, it is best to abandon attempts to get the information into print.
C) Various journals use different formatting. Waiting until editor interest is expressed saves unneeded re-formatting.
D) Some journals limit the number of items in the reference list. Best know this before editing the thesis down to the length of an article.
E) Every contact with an editor results in at least a request for revisions. An initial manuscript cannot be prepared without editor input.