Oracle has focused development around a single source code model since 1983. While each database implementation includes some operating system–specific source code at very low levels in order to better leverage specific platforms, the inter- faces that users, developers, and administrators deal with for each version are consis- tent. Because features are consistent across platforms for implementations of Oracle Standard Edition and Oracle Enterprise Edition, companies can migrate Oracle applications easily to various hardware vendors and operating systems while leverag- ing their investments in Oracle technology. This development strategy also enables Oracle to focus on implementing new features only once in its product set, instead of having to add.
