Hi Michael!
Should you use flow charts or text? What is good for the department(s)? Do that and defend it if needed when scrutinized by your auditors.
When we were developing our procedures for QS9 implementation, flow charts were for us easy to develop with small groups of operators from each of the departments, using the verb / noun step by step, and easily reviewed as a training tool for new employees in those departments. Sometimes a sentence or two with some of the steps is necessary for clarification. This is easily done with most flow chart software. You canb also indicate a particular form that is required, color code critical steps, or "SPC" monitored steps, and so on.
Consider picture procedures. An inexpensive digital camera with a line or two under each picture is another way to flow chart the process. Our customers gushed over our first ones several years ago, demanding copies to take back with them to show their other suppliers.
There are still some who write two to ten page text procedures, attempting to get each step-by-step in some type of order, and nobody reads them. They usually turn out to be either way too detailed, or way to general. I like the flow chart approach.
When I usd to audit - internal and supplier, I looked at "operator instructions" at work sites, and if there was 5 or 6 or more pages of text I usually asked a local operator who wrote it. Almost always there was a shrug and it usually turned out to be somone in the "office," with little or no operator participation. This is not necessarily bad, it can work, but I have often found them to be of little real value.
But do whatever works for your company.