Users naturally center tasks around business events and entry objects, although other types of objects are usually used as a task progresses. For example, taking an order primarily involves filling in an order form (an object). However, it may also involve looking up a price in a price list (another object) or even using a telephone directory (another object) to help phone a supplier (yet another object).
In most cases, simply talking through the task with the user will enable you to identify all the required objects.
Users will be accustomed to dealing with these objects in the real world. They understand how they are integrated to complete a task. Special attention should be given to the user interface design to ensure that this integration is reflected.
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