title: Open Source ERP Review (as of May 2013)
body: <p>I have been reviewing the main open source ERP products. I require that an ERP provides financial accounting, sales, procurement, manufacturing/warehouse, and inventory features. I have been looking at what is supported within each of those features, interacting briefly with their demos, looking at their high level technical architecture, and sampling some of their source code. </p>
  
  <p>I hope to find a system that is not too bloated with overly complex libraries, exhibits some layering that separates persistence, domain logic, and presentation (MVC as well is optional), is not very cumbersome to customize or extend, and that exhibits a somewhat clean, well thought out relational table structure. Essentially, something half way between primitively organized php or client/server and bloated J2EE. I also favor a well designed system with some features missing over a poorly designed system that covers all the features I need.</p>
  
  <p>Questions I hope to answer below:</p>
  
  <ul>
  <li>What is out there right now (with at least some usage)? </li>
  <li>What is a decent set of specific features for an ERP system (and what should probably be a separate product)? </li>
  <li>High level (biased) reactions to their technical architecture, and momentum surrounding technology stack used. </li>
  <li>Detailed example from each system, showing typical code style and organization.</li>
  <li>Initial critique of their core relational table design</li>
  <li>Community activity, support, momentum?</li>
  </ul>