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Technical Writing Tip:
Remember the 72 rule

The human mind can remember 72 related items in short-term memory at one time. This is why United States phone numbers have seven digits and zip codes have five or nine digits. This is also why there are seven dwarfs, nine members of the Brady Bunch, and "seven strangers" on MTV's The Real World.

Therefore, when you put together a procedure, try to limit it to a maximum of seven or nine steps. Any more steps, and the reader will probably find hard to keep track of them.

If you have a very long procedure, break it into tasks. Each task has a maximum of seven or nine steps. Of course, you limit the tasks to no more than seven or nine. Your readers will find it easier to keep track of seven tasks with seven steps for each one, than having to follow 49 steps. It also makes a procedure seem less intimidating to a reader.

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