Appendix. Capturing data on the web
As you’ve learned in this book, intelligent applications are those that can change their behavior based on information. It follows, then, that we must have a mechanism for the capture and access of data. Because we’re talking about web-scale processing, it stands to reason that we may need a system designed with the following in mind:
- Volume— Our system should be capable of dealing with web-scale data.
- Scalability— Our system should be configurable with changing load.
- Durability— Outages or network blips shouldn’t affect the eventual consistent state of data.
- Latency— We shouldn’t expect to wait long periods of time between data being generated and data being processed.
- Flexibility— Access to the data ...
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