On the moment you can see Moodle as a clever hybrid system as answer to the current state of the art of the standards. In a handy loose design you set the ouline of a course, like a marketplace. On this market place you can fill tables with local activities, which can be one of the more then 30 Moodle activities or the new blocks.
It can also be "plugins" like the Scorm modul: in that modul you can run a scorm-play and at the end our scorm-plugin gives the final score back to the gradebook in Moodle: a very clever way of integration.
Another standard is QTI: if you create quizzes in Moodle, you can choose to do this in a special part of the editor, so you can EXPORT these quizzes in QTI 2.0 format.
There is also a project (Gustav's) that is connecting Moodle to a real QTI engine, so that any quizz, created according to the QTI format can run in a Moodle system.
Scorm has it's roots in good old CBT and AICC: it can design the most complex scripts for individuals, but has no idea how to organise even the simplest group-activity.
Moodle people believe that the best form of education is a mix of individual and group learning activites, as open as possible, but not complete free, we are not naive.
When we as community grow in design skills, we need a common language to express and exchange our more complex designs. We are looking for tools like IMS/LD, but that is another discussion 
I see you have a long succesful career in the design of teacher replacing software. The driving idea behind this approach is that if you are able to construct good instruction moduls with valide tests, students can learn any subject. I came also from this tradition, but am now convinced that it is not enough: we should also organise groupactivities. So don't throw away all your experience, but try to combine it with the flavors of Moodle.
