On 12/4/07, Nam Loc <[EMAIL PROTECTED]> wrote: > > > So what happens now is that within the same test session, the User will be > tested with half the use cases (functions) of the system with full > visualisation screens, and the remaining use cases with wireframes only. Eg, > for an e-commerce site, testing the Search and Browse with visuals, and then > test the Checkout with wireframes all within the same test session. > > I am aware of the pros and cons with testing of hi-fidelity and > lo-fidelity of Paper Prototypes, however I am concern with using both, one > after the other, within the same test session as it may introduce variables > into the final results. >
Very interesting question. Personally, I've never mixed hi and lo-fi prototypes, but I've never come up against a situation in which it would be necessary. On the surface, it would *definitely* be a disruptive user experience, and would certainly color test results. I think the solution is to do *two* tests, if that option is open to you. In my normal prototyping process, lo-fi prototype testing occurs as part of the design phase. Once the interactions/IA are tested, revised, and validated, then graphic design can be integrated. We then use image-mapped JPGs for hi-fi prototyping*. This reveals to us aspects of the design that may affect the usability of the site, e.g., a button may not look clickable. I hope this helps! - Fred * Not intended as flame bait. : ) ________________________________________________________________ *Come to IxDA Interaction08 | Savannah* February 8-10, 2008 in Savannah, GA, USA Register today: http://interaction08.ixda.org/ ________________________________________________________________ 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
