This is a very well written summary of the current data science landscape. Everybody building data related solutions should have a good read of this.
Five years ago, if you were building a system, it was a result of the code you wrote. Now, it’s built around the data that is fed into that system. And a new class of tools and technologies have emerged to process data for both analytics and operational AI/ ML.
Source: The Emerging Architectures for Modern Data Infrastructure