MIL-DTL-81927C(AS)
b. Technical phraseology, requiring specialized knowledge, shall be used only when no
other word or phrase will convey the intended meaning.
c. Words which have more than one meaning such as "check" instead of "checkout", shall
not be used.
d. Third person indicative mood shall be used for descriptive text. Second person
imperative mood shall be used for instructions and shall be written as commands, for
example: "install power supply."
e. Articles shall be omitted except when required to prevent ambiguity or to facilitate
understanding of the instruction.
f. When space conservation is desirable, the verb may also be omitted; for example: "power
switch ON." The verb may be omitted only if the intent of the statement is clear to the
user.
g. The rules and features of simplified English written in AECMA Document
PSC-85-16598 may also be used as guidelines in the preparation of technical manuals.
3.4.1.1 Comprehensibility. Comprehensibility is mandatory in the preparation of all text and
illustrations. It is imperative that documents be prepared in an easily understood manner to
permit rapid detection and comprehension of all procedures.
a. Paragraphs and sentences. Concentration shall be exercised during the writing phase to
ensure adequate paragraphing and sentence structuring. Sentencing shall be directive in
nature, short, clear and concise so it supports data retention.
b. Arrangement. Arrangement of information in procedural step format vice narrative
descriptive material also enhances comprehension. Text and illustrations shall be closely
coordinated.
c. Graphic data. Graphics data is of equal importance to text. Simple, clear graphics
reduce text requirement and raise the level of comprehension.
3.4.1.2 Readability. Readability is measured using criteria based on the readers/users ability
to comprehend and retain the written information. To ensure that text material is both readable
and comprehensive, the overall writing style shall be directed toward specific standards that will
guarantee accomplishment of these objectives. Controlling factors include word length, sentence
length, paragraphing, and word usage. Prepared text shall conform to the following readability
standards:
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