The Sand Framework is a lightweight, multi-database, multi-platform object-relational mapping and security framework.

Sand provides out of-the-box extensible support for various ralational database management systems such as PostgreSQL, Oracle, and Microsoft SQL Server. Sand implementations are available for Java, .NET, and PHP.

Sand allows straight-forward implementation of entity classes. Objects from various sources will automatically interact.

Implementations for different environments will integrate and share resources.

Sand comes with locking, caching, access control and logging, installation and configuration utilities. It is easy to learn and handle, open source and expandable. And, of course, it's cool.