Epilogue
In the epilogue to the first edition, I worried about the business model for IoT—how to generate a revenue. I also stated that although we do see some completely new stuff, most IoT solutions are probably going to make money by saving money. This seems confirmed over the past few years. Many IoT solutions are smarter implementations of existing solutions. Take, for example, the process-control in a beer-brewing company, where it was customary for employees to read meters at regular intervals and write them on paper. These readings would go into Excel spreadsheets, which could be used to regulate the process shortly after. Even later, data would be sent to management (e. g., as mail-attachments) for production planning.
Today, all of ...
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