This is a copy of my old code from 2010. It was hosted back then on now offline Codeplex site. I was able to make this copy thanks to invaluable CodePlex Archive site that kept the project.
I made one beta release on January 14th 2010 with note "This is a stable preview of OSM, used in production for more than half year.". I really used it back then on production and worked very well.
Below there is mention of Davy Brion, his page is offline now. You can find source code of "Build Your Own DAL" on his GitHub, and the blog posts on Web Archive here.
Simple object-SharePoint mapper (think nHibernate) that use only attributes for mapping configuration. Tested in production.
Implementation ideas borrowed from Davy Brion (http://davybrion.com) and his series "Build Your Own DAL".
Check new documentation!