an enumerative start to my narrative

Life in the navy is all about qualifications.  You are not allowed to do your job unless you have proven that you know the ins and outs of the task that you are to perform and the system that it is being performed on.  In order to prove that you have the requisite knowledge the navy uses a qualification system broken into specific watches that one would stand or more specifically a system that one would use.  The basic flow of a qual card is as follows:  references, prerequisites, knowledge factors, practical factors, test, and interviews.  When handed a new qual card the individual first looks at the references.  These references contain most of the knowledge needed to qualify that watch or system.  The prerequisites are simply there to ensure that an individual starts at the right level.  It would be pointless to start out at the top if you do not have the basic knowledge that is obtained from the lowest qualification.  The knowledge factors are the meat and potatoes of qualifying something.  An individual is required to memorize the components and procedures used to operate a system and further more must be able to explain, to a diagram level, the functional description of that system.  The practical factors are there to ensure that you can actually operate the system and not just talk about how it is operated.  I could explain to you how to do open heart surgery, but unless I have actually done it before my first time would likely result in the death of the patient.  The test is to ensure that you have retained the knowledge that you received throughout the qual process and the interview is for the supervisors to ascertain if the individual is actually ready to stand the watch.  All in all it is a lengthy process with a steep learning curve for those just starting out but it is an excellent way to understand how to do your job and provides the means for others to ensure that you are adequately trained to perform it satisfactorily.