Inception Phase - Georgia Tech - Software Development Process 

Artifacts can be any of the following: 1- A document, such as Business Case or Software Architecture Document. 2- A model, such as the Use-Case Model or the Design Model 3- A model element; that is, an element within a model, such as a class, or a subsystem

It would be nice if you refrained from using complicated language in explanatory videos. It poses an obstacle for non-native speakers as well as folks without a high enough level of education. You could replace "fidelity of the primary uses" and at the very least explain or rephrase "Stakeholder concurrence" and save your viewers a google search.

WAYYYY too complex to be understood, unless you already know it all in advance. Examples and simple language would be preferred.