RE: Moving on

> 
> [GBA] This is a long standing discussion. I fact our customer 
> would like to get what they order on the day we said and for the cost we 
> said. All other processes are internal. 
> All this incremental delivery stuff 
> depends on the customer's ability to absorb the production an incremental
manner. The
> continual denial that there are customers like this indicates 
> to me XP's lack on understanding for the broader market - but that's a
personal
> experience. Internal incremental deliver improves quality, 
> improves schedule risk, increases requirements compliance, etc. but has
very 
> little to add for the customer who can't receive incremental delivers -
and we 
> have many of those.

XP does not deny that customers expect delivery on time and on budget.  Nor
does it require that the customer can absorb production in an incremental
manner.  The books emphasize variable scope and small releases  because
there are great benefits in doing so.   In practice, neither are common, but
that need not impact on the team's use of XP.  

Few projects deliver on time and budget.  For a project that is not, there
is always some discussion/negotiation with the customer around the delivery
date, scope, and often cost.  That discussion is best for everybody if there
is lots of valuable, working software available to make the best decision of
how to proceed (usually delay or ship what we got).  So, even if a customer
will not engage with an XP team in the way the practices describe, XP will
still yield the optimal results for all involved.  In these cases (as I know
you know ;-), the role that we prefer to be the end customer is performed by
someone with-in the developing organization, perhaps from the team itself.
We often see managers, who often have reduced team-focused work, perform
this role.

It is still XP, but with some adaptation to overcome the constraint of an
un-engaged customer.

Lowell

====================
Lowell Lindstrom
Object Mentor, Inc | www.objectmentor.com | 1-800-338-6716
[email protected]



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