Re: Practice: Pay-Per-Use

Kent Beck wrote:

>With pay-per-use systems, you charge for every time the system is used.
>Money is the ultimate feedback. Not only is it concrete, you can also spend
>it. Connecting money flow directly to software development provides
>accurate, timely information with which to drive improvement.
>  Lots of software is already pay-per-use. Telephone switches, electronic
>stock exchanges, and airline reservation systems all charge you a fee per
>transaction. While pay-per-use has business advantages and disadvantages,
>
>  
>
snipped...

Another form of feedback related to this, it in use by one company whose 
entire  business is dependant upon its web site.  They choose stories 
that help make the site 'better' for the customers to use.  The 'better' 
it is, the more they spend or are likely to spend.

By 'better' it can be things like prettiness, functionality, 
statefulness, user history etc.

The enormous amount of data they gather from the transactions, allows 
them to determine that adding a certain type of functionality caused 
sales to drop or increase, which means the do less or more of it as 
appropriate.