Re: Upgrade as Change in Meta-state

Laconic2 wrote:

<snip>

> If the problem can be recreated, then this problem is turned over to
> development to repair. And they may have to pull people off their regular
> duties to get that done.
>
> If the problem CANNOT be recreated on a standard database, then it's
> production's problem to solve.
>
> This is not perfect, but it works.
>
> And I think it means we can move on without further debate on this point.

I will add only that we formalized a general case of test-production development with the concept of the "promotion sequence". A promotion sequence system provides a framework for moving changes through n stages of testing. For an IDS that might be two stage, from test to live, while a promotion sequence for an EDS is considerably longer:

1. Vendor: Development and reality checks on a developer's box
2. Vendor: Testing in a smoke-test system
3. Vendor: More thorough testing in a qa system
4. Vendor: Into the release

   ---

5. Customer: test system
6. Customer: live system

-- 
Kenneth Downs
Use first initial plus last name at last name plus literal "fam.net" to
email me