Similarly, there is no comparison between IETM and CBT. Both are different and both purposes are different. Both are needed but it is replicable with each other. IETM Means technical documentation which deals with your documents/pdfs/manuals and CBT means computer-based Training which comprises Multimedia, i.e. Animations, videos, and voice-over. https://www.codeandpixels.net/blog/ietm-vs-cbt-which-one-is-better/