Workbench is a collection of tools available since Qlike Sense 1.0 until Qlik Sense 2.0.
With a face-lift & improvements introduced in Qlik Sense 2.1 Workbench has been renamed to Qlik Dev Hub.
Workbench resp. Qlik Dev Hub work in both, Qlik Sense Desktop and Qlik Sense Server.
In this tutorial
Introduction
Part I: Introduction to Developing Visualization Extensions for Qlik Sense
Part II: Visualization Extensions & AngularJS
Part III: Subjects
Part IV: Deployment Checklist
Appendix: FAQ