Cross-Platform Core Libraries
Cross-Platform Core Libraries contain reusable code required by other DevExpress .NET assemblies and the eXpress Persistent Objects (XPO) object-relational mapping tool.
eXpress Persistent Objects for .NET (or XPO) bridges the gap between relational databases and object oriented software constructs found in custom software. Using XPO, you can build applications that are compatible with multiple database systems (MS Access, MS SQL Server, MS SQL Server CE, MS SQL Azure, MySQL, Oracle, PostgreSql, Firebird, PervasiveSQL, VistaDB, SQL Anywhere, Advantage, DB2, SQLite, and Sybase) without having to make ANY changes in your code.
The DevExpress Data Library implements basic functionality for data binding, control skinning, printing, exporting, as well as functionality that is common to specific DevExpress products targeting different platforms (ASP.NET, ASP.NET MVC, WinForms and WPF).