Based on type of question, grammar, and topic of question, I'm guessing this post has been made by Roberto?
You'll see from a quick Q&A search that there is a lot of content already here!
Now, there is no one good framework for digital transformation cases. That said, I've worked on multiple transformations in my career, and even created a case on one:
If you'd like to go through the various proprietary frameworks I've created to address digital transformations, including the best approach to tackle the above case, feel free to reach out and book a coaching session! It's the only want to learn the real answer to a complex question like this.