This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
writable views? I've not heard that term, but it could be another name for updatable views. Views are used as read only things normally, however if you write them to meet certain contitions you can update the data via the view. Such conditions could include: