Features

Public HTML interface

When visiting the homepage of an Atramhasis instance, users are presented with a few different options. They can search for a certain label within a certain conceptscheme. Links are presented to all the conceptschemes present in the instance. For a list of (configurable) conceptschemes the most visited concepts are displayed for easy and quick access. Notice that by default Atramhasis comes with an English, French and Dutch public interface. Other languages can easily be added.

A concept detail page details one concept or collection. It lists the concept’s labels, notes and sources used in creating or researching the concept. Every concept has an id (an identifier within a conceptscheme) and a URI that can be custom generated. For interoperability with other applications, every detail has both RDF/XML and N3/Turtle downloads available. As Atramhasis tries to take the user’s preferred language settings into account, it will try to provide the title of the page in the user’s preferred language, whilst also listing the labels separately.

Scrolling further down on a detail page, we come to the relations between this concept or collection and other concepts or collections. All common SKOS relations (broader, narrower, related, member, …) are accounted for. Links to other conceptschemes (suh as the AAT) are supported with SKOS matches.

While every detail page presents the immediate relations for a certain concept or collection, there’s also a tree view available that presents all broader/narrower relations for all concepts and collections in one go. This can be reached on the conceptscheme page or from every detail page. As can be seen here, an Atramhasis instance can easily be reskinned for a certain organisation. The Flanders Heritage Thesaurus is an Atramhasis implementation with custom styling and authentication.

SKOS editor

When opening the admin page, you arrive at the overview of conceptschemes. From here, editors can quickly see the available conceptschemes and open one for further editing.

Conceptschemes can be edited from this screen. While conceptscheme attributes can be adjusted here, new conceptschemes must be created in the Providers module.

From the conceptscheme overview, you can click the Concepts button to open the concepts and collections inside a conceptscheme. This gives you an overview of all concepts and collections within that conceptscheme.

The concepts and collections overview also supports searching, making it easier to find a specific concept or collection in a larger conceptscheme.

Editing a concept or collection is done using one or more tabs. The labels tab lets you update the preferred labels and alternative labels for a concept or collection.

The notes tab is used to edit scopenotes, sourcenotes, and other notes. Adding HTML markup is supported.

The relations tab allows editing the relations of concepts or collections with other concepts or collections.

When adding a new relation, the interface helps you choose the appropriate relation type and the related concept or collection. Dropdown lists are present to facilitate editing.

The sources tab allows editors to add and maintain the sources used in creating or researching a concept or collection.

The matches tab allows an editor to match a local concept to a concept in a remote conceptscheme.

Using the skosprovider that powers a remote conceptscheme, matching concepts can be searched for and added to the local concept.

Once a concept has been matched with a concept from an external provider, it is possible to merge the two concepts. This is similar to importing a concept, but works for concepts that already exist in your local thesaurus. Merging copies the labels and notes from the external concept. If you can link your concept to an external concept that has labels for the concept in different languages, this is a quick way to extend the number of languages supported by your local concept. Before saving the results of the merge, you are free to review the results and accept or reject certain labels and notes.

The providers screen gives an overview of all configured providers. From this screen, you can create a new provider or open an existing provider for editing.

When editing a provider, you can update its configuration.

The languages screen allows editors to add all languages they want to use in the application. You can choose from all IANA language tags.

LDF server

With a little bit of effort, Atramhasis can setup an LDF server for you, allowing you to quickly serve RDF tripples.