MDS Staging Database Creation Script is the schema DDL for the staging database
MDSModelImport.exe is a command line utility for importing a SQL relational model into Master Data Services
MDS Custom App Utiltites is a .dll that has the MDSDataSource for ASP.NET and the WCF CRUD service generation code.
MDS Data Sample Web Site is an ASP.NET web site built on top of Microsoft.Samples.MDS.CustomAppUtilities.dll that demonstrates how to use the DataServiceGenerator for creating WCF services, and the MdsDataSource control for building no-code and low-code ASP.NET pages that read and write MDS model data.
Or just download the latest source code (or the change set associated with this release) and build it yourself.
For the Custom Workflow Host and External Action Samples, get the source code.