What Is Meant By Writing A Short Report And A Long Report?

THE SHORT REPORT
The special business report can be classified into two categories. The short report and long report, also called the INFORMAL REPORT and THE FORMAL REPORT. The short report may range from short statement of facts presented on a single page to a longer presentation taking several pages. The short, informal, report is usually submitted in the form of a letter or memorandum. It does not carry a cover, table of contents or any special display.
in style, this short report is personal, informal and relaxed. It is written in the first person (I or WE), unlike the formal report in which the use of first person is usually for the sake of complete objectivity.

THE LONG REPORT
The report is always a long one and consists of all or only some of these parts: cover, title page, contents page, and letter of transmittal (covering letter), summary, introduction, and the body of report, conclusion with or without recommendations, appendix, bibliography, and index. It is even printed sometime and bound in hard covers like a book. When it happens to be very long, a summary of its main points is given after the introduction.
In style, the long or formal report is impersonal and restrained in tone. The writer or writers generally do not use the first person (I or WE), but used third-person reference in some such ways. "It was found" and "the writers are of the opinion" etc.

Short report mean short method and long report mean long method both are same but little bit difference that short method give the some idea about write the letter but long report give the proper things.

The special business report can be classified into two categories. The short report and long report, also called the informal and formal reports.
The short report may range from short statement of facts presented on a single page to a longer presentation taking several pages. The short, informal, report is usually submitted in the form of a letter or memorandum. It does not carry a cover, table of contents or any special display.
In style, this short report is personal, informal and relaxed. It is written in the first person (I or WE), unlike the formal report in which the use of first person is usually for the sake of complete objectivity.

The Long Report is always a long one and consists of all or only some of these parts: cover, title page, contents page, and letter of transmittal (covering letter), summary, introduction, and the body of report, conclusion with or without recommendations, appendix, bibliography, and index. It is even printed sometime and bound in hard covers like a book. When it happens to be very long, a summary of its main points is given after the introduction.
In style, the long or formal report is impersonal and restrained in tone. The writer or writers generally do not use the first person (I or WE), but use third-person reference in some such ways. "It was found" and "the writers are of the opinion" etc.

The best way to write a short report comparing two similar organizations is to first make a list of all the topics that you want to cover in the report. Start off with the main heading lets assume ‘introduction’ and then give two sub headings one for each organization in which you will introduce both the organizations like
1.   Introduction
1.1.   Organization 1
1.2.   Organization 2

Proceed in this way till you cover all the topics. In the appendix you can also make a table that summarizes the comparison like this:   
  Organization 1   Organization 2  
characteristics

1. short report are informal whiles long report are formal