Analysis is one of my favorite parts of the instructional design process. Today, my team and I worked with a group of subject matter experts (SMEs) to conduct task detailing- a step in task analysis. The aims of task analysis include (1) enumerating the steps involved with completing a task and (2) stating the prerequisite knowledge for each step. The prerequisite knowledge is where things got a bit fuzzy for the SMEs today. Prerequisite knowledge in task detailing refers to what the learner must already know in order to learn a particular step. Prerequisite knowledge is not general knowledge about a concept, process, or procedure; it is specific knowledge the learner needs to possess in order to learn a step required to complete a task.
When conducting task analysis be sure to ask the SME what the learner needs to know in order to learn a step required to complete a task; ask it specifically: What does the learner need to know in order to learn this step?