Points of Discussion
These "Points of Discussion" questions are difficult for me to respond to out of context. I think they would be more meaningful for learners as reflection questions after conducting their own task analysis. Maybe put the activities first?
Additional "Point of Discussion": How does conducting a real-life task analysis differ from following the textbook models?
I think one of the reasons TA is so misunderstood and unused is because it's taught too formally. Most IDs I know think of task analysis less formally. They sit down with an expert, observe them performing a task, and ask questions that attempt to reveal decision points. The experts are storytellers and the designer or assessor plays the role of a curious listener/apprentice.
Their model is not pretty, but it's very simple to understand. You've got goals and skills to accomplish those goals. The procedure of a TA is simple: "Break down the goal 'til it can't be broke down no more."