After talks with morten and stephane, this renames

IDocument -> IPublishedContent
DynamicDocument -> DynamicPublishedContent

src/Umbraco.Core/Models/IPublishedContent.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+namespace Umbraco.Core.Models
+{
+	/// <summary>
+	/// Defines a PublishedContent in Umbraco
+	/// </summary>
+	/// <remarks>
+	/// A replacement for INode which needs to occur since INode doesn't contain the document type alias
+	/// and INode is poorly formatted with mutable properties (i.e. Lists instead of IEnumerable)
+	/// </remarks>
+	public interface IPublishedContent
+	{
+		IPublishedContent Parent { get; }
+		int Id { get; }
+		int TemplateId { get; }
+		int SortOrder { get; }
+		string Name { get; }
+		string UrlName { get; }
+		string DocumentTypeAlias { get; }
+		int DocumentTypeId { get; }
+		string WriterName { get; }
+		string CreatorName { get; }
+		int WriterId { get; }
+		int CreatorId { get; }
+		string Path { get; }
+		DateTime CreateDate { get; }
+		DateTime UpdateDate { get; }
+		Guid Version { get; }
+		int Level { get; }
+		Collection<IDocumentProperty> Properties { get; }
+		IEnumerable<IPublishedContent> Children { get; }
+
+		/// <summary>
+		/// Returns a property on the object based on an alias
+		/// </summary>
+		/// <param name="alias"></param>
+		/// <returns></returns>
+		/// <remarks>
+		/// Although we do have a a property to return Properties of the object, in some cases a custom implementation may not know
+		/// about all properties until specifically asked for one by alias. 
+		/// 
+		/// This method is mostly used in places such as DynamicPublishedContent when trying to resolve a property based on an alias. 
+		/// In some cases Pulish Stores, a property value may exist in multiple places and we need to fallback to different cached locations
+		/// therefore sometimes the 'Properties' collection may not be sufficient.
+		/// </remarks>
+		IDocumentProperty GetProperty(string alias);
+	}
+}