January 2003
Beginner
240 pages
6h 9m
English
book
Service- and Component-based Development: Using Select Perspective™ and UML
by Hedley Apperly, Ralph Hofman, Steve Latchem, Barry Maybank, Barry McGibbon, David Piper, Chris Simons
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Data migration planning
If data are to be migrated to new physical data environments, then the migration must be prepared carefully as losing information is expensive, if not fatal. As discussed in solution rollout (Chapter 5), the decision on big bang versus incremental migration has an impact on the whole rollout planning exercise.
While big-bang migration may either succeed or fail, the planning problem is focused on scheduling time to migrate the large volumes of data, during which time current operations must not be disrupted. However, incremental migration provides the opportunity to manage risk effectively, as it allows more flexibility in the rollout of the new solutions.
For incremental migration, the structures of the legacy and new ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.