public static Contract FromDasFile(string dasXml)
{
var contract = new Contract();
var xDoc = XDocument.Parse(dasXml);
var process = xDoc.Descendants("Main").First();
var dataModel = xDoc.Descendants("DataModel").First();
contract.Process = ProcessFactory.FromDasFile(process);
contract.Entities = EntityFactory.FromDasFile(dataModel);
return(contract);
}