WordWriter provides two development solutions that can be used separately or together:
Introduction to WordTemplate: Create a Document with WordTemplate
WordTemplate is the main class for template-driven document generation. This object opens a WordWriter template file, populates it with data from a specified data source, and generates a new Word document.
WordApplication is not available in WordWriterSE.
Introduction to WordApplication: Create a Document with WordApplication
WordApplication is the main class for pure code-based document generation. This class is an engine used to open, create, and write (save or stream to a browser) documents. A single instance of WordApplication can generate multiple Word documents.
SharePointIntegration is not available in WordWriterSE.
SharePointIntegration is a class of extension methods that allow you to more easily use WordWriter from within SharePoint, with support for opening and saving from SharePoint List attachments and Document Libraries as well as data binding with SharePoint Objects.