I am interested in knowing, what are the differences between Original Paper, Review Paper, Letter and Short/ Rapid/ Brief Communication paper?
Thanks to everyone for reading and taking the time for the great responses.
"Original paper" is any research paper not falling into below categories. "Review paper" is that reporting a critical overview of recent articles in the field, can be very long, say, 30-40 journal pages. "Letter" is a short research paper, ca. 4 journal pages. "Communication" is essentially the same as "Letter", sporadically can contain comments (there is a specific genre called "Comments" as well) on some recently published paper in this journal.
This will vary pretty heavily depending on the journal in question. But generally speaking, in broad strokes:
Original research articles are detailed studies reporting original research conducted by the author. They include hypothesis, background study, methods, results, interpretation of findings, and a discussion of possible implications.
Review articles give an overview of existing literature in a field, often identifying specific problems or issues and analysing information from available published work on the topic with a balanced perspective. Review articles can be of three types, broadly speaking: literature reviews, systematic reviews, and meta-analyses.
Short communications are usually a concise format used to report significant improvements to existing methods, a new practical application, or a new tool or resource. These need to be reported quickly as the need to communicate such findings is very high.
Letters are usually short and flexible articles that express readers' opinion on previously published articles, or provide evidence to support/oppose an existing viewpoint.
Original artical is under good headings ,all headings that must be present in every original paper but review sometime have some heading missed like materials and methods but not always happen this ,the main difference is that study is rational , different areas result collecting together .The size of review artical is longer than original one.the short communication have not headings properly but all aspects are clear properly it is much comprehensive.