In answer to the original question -- "How many ideas qare enough?" -- I'd say it can be reassuring to have a number, as a guideline.
Here's a number, based on my experience: if you ask three to four people to separately prepare come up with substantially different ideas, then you'll typically have a saturated design space for the design of [something] at most levels of granularity. The previous paragraph needs to be fleshed out: - Substantially different: It's not sufficient to produce 5 variations on a theme. - Granularity: That is, this works for a mental model, a workflow, a web page, an application feature. If the granularity gets too fine, it starts to feel ridiculous. - Use four people, unless participants are experienced at ideation. - This is a guideline, not a rule. Your experience may differ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Posted from the new ixda.org http://www.ixda.org/discuss?post=37356 ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [email protected] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
