.. include:: /Includes.rst.txt .. _introduction: ============ Introduction ============ The extension provides a number of database tables and corresponding classes for use in the various dependent data models in the CHF. This includes humanities-specific data such as ``Location``, ``Period``, and ``Actor``, but also more generic classes like ``SameAs``. In the same vein of being a service extension for other data models, CHF Base also includes key third-party libraries like ``Leaflet``, infrastructure to import and serialise data, to compile search configuration, and to build user interfaces. The latter is realised in the form of generic Fluid templates that sitepackages may use as-is, but also by means of a CSS library with complimentary JavaScript to build accessible and responsive web apps from atomic components. .. attention:: The extension is not final yet. A lot of things may still change over the coming months. .. _screenshots: Screenshots =========== TBD