Hi

Not sure about the 1st issue, but usability ROI has been a long term
research topic - A quick search on scholar.google.com ("usability ROI")
gives lots of references.

Best
Gorkem

2010/11/9 Kursat Cagiltay <[log in to unmask]>

> Hi,
>
> In his 1993 book, Usability Engineering, Jacob Nielsen reports that 48% of
> the code is devoted to the user interface (page ix).
>
> In the same book, he reports some figures about cost savings from the use
> of usability engineering methods on page 2.
>
> I need recent studies/findings/figures about these two issues.
>
> I'd appreciate your help in advance.
>
> Kursat Cagiltay
>
>
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
>
>   --------------------------------------------------------------
>   Tip of the Day: Use the archives to research common questions
>           CHI-WEB: www.sigchi.org/resources/web/faq.html
>             MODERATOR: mailto:[log in to unmask]
>   --------------------------------------------------------------
>

    --------------------------------------------------------------
    Tip of the Day: Suspend your subscription if using auto replies
            CHI-WEB: www.sigchi.org/resources/web/faq.html
              MODERATOR: mailto:[log in to unmask]
    --------------------------------------------------------------