The engine of a non-linear video editor that can be used in all sorts of apps, not just desktop video editors.
MLT is an open source multimedia framework, designed and developed for television broadcasting. It provides a toolkit for broadcasters, video editors, media players, transcoders, web streamers and many more types of applications. The functionality of the system is provided via an assortment of ready to use tools, XML authoring components, and an extensible plug-in based API.
articy:draft is a visual environment for the creation and organization of game content. It unites specialized editors for many areas of content design in one coherent tool. All content can be exported into various formats, including XML and Microsoft Office.
"Chat Mapper is an easy to use tool for writing and testing nonlinear dialogue and events for fields where complex problems are the normal, such as entertainment, e-learning, emergency response, diagnoses health care, sales and customer service, and strategic planning."