I will start this article with an analogy:
Processing big data with small data technology is like building an 80-story skyscraper brick by brick. It will take a lot of time just to get to floor #10, and it will collapse by the time you reach floor #15.
If you build a 80-story skyscraper without good ROI analysis, maybe you will end up with a building that has lots of unoccupied space, generating a negative ROI. The same applies to big data. You must do due diligence before embarking on big data projects.
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