The tools they used is Ember JavaScript framework and D3 an external library.

Ember is a JavaScript framework that builds modern web applications. Using Ember’s definition from their website, “Ember.js is a productive, battle-tested JavaScript framework for building modern web applications. It includes everything you need to build rich UIs that work on any device”. It builds really good UI’s that can work on any device, such as build pipeline, routing, data layer, testing, performance and easy upgrades.

D3 is an external library for data visualization. Using D3’s definition from their website, “D3 (or D3.js) is a free, open-source JavaScript library for visualizing data. It’s low-level approach built on web standards offers unparalleled flexibility in authoring dynamic, data-driven graphics”. It is a low-level toolbox, it’s flexible, it works with the web, it bespoke visualization, has dynamic visualization.

The technologies/tools do not meet the practices of DH.