Re: Re: SIP is not Takt Time

On 2003.02.09, Mary Poppendieck <[email protected]> <[email protected]> wrote:
> --- In [email protected], Dossy <dossy@p...> wrote:
> 
> > From a business perspective, [...] The entire process would be the
> > lead time for the feature ... and I think SIP should be the measure
> > of that lead time.
> 
> I stand corrected, I agree with you completely on this.  

Neat! 

> The 'duration' in question is the time from when a story is needed 
> by the business until they get the story implemented.

You summed it up in one neat sentence.  Very nice.

This definitely fits (in my mind and understanding) what the term
"Software-In-Process" should mean.  Now, the challenge is to figure
out ways of using the SIP measure to improve things ...

> That duration is - well - I still do not like the term *lead time*.
> It does not seem to me to carry the same meaning in production and
> inventory control, and I figure once a word has two meanings it's
> useless.

Blame it on sales folks.  The definition of "lead time" that I'm
familiar and comfortable with is the one used by sales people who deal
with finished goods only.  To them, the duration between ordering
finished goods for retail to the time when they can actually hand it
over to their own customer is their "lead time" ... and that, strangely,
makes sense to me based on what I intuit "lead" to mean ...

But yes, having more than one definition makes the term less useful as a
rapid communication tool and can only lead to confusion.

> We can call it SIP or I will call it service time.  But in any event,
> I definately include time for the customer to formualte the story as
> part of this time.

I wonder if Kent had this in mind, as well.  I'm surprised he hasn't
chimed in yet.

-- Dossy

-- 
Dossy Shiobara                       mail: [email protected] 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)

------------------------ Yahoo! Groups Sponsor ---------------------~-->
Get 128 Bit SSL Encryption!
http://us.click.yahoo.com/LIgTpC/vN2EAA/xGHJAA/NhFolB/TM
---------------------------------------------------------------------~->

To unsubscribe from this group, send an email to:
[email protected]

 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/