Which category of activities should be identified first when developing a 'Business Activity Model' (BAM)?

The Business Activity Model shows the doing activities' of a business system. Which element of CATWOE do these activities relate to?

A business analyst wishes to show that a company wants to store information about different types of product.
Some attributes are common to every product (for example; product name) but other attributes only apply to certain product types. For example, product material only applies to accessory products. Which of the following constructs could the business analyst use to represent this on a class model?

What are business case development, subject matter expertise and procurement all examples of?

Which of the following investigation techniques is MOST appropriate for collecting quantitative information?