In Pictures: 10 old-school IT principles that still rule

These graybeard IT tenets still reign -- when applied in their modernized guise

8. Integrate, because interconnecting 'islands of automation' takes a lot of stupid out of business processes

When humans rekeyed information from computer-generated reports into data-entry screens, IT realized one of its most important responsibilities was integrating disparate systems to keep data synchronized.

So it built interfaces. Lots of them. All custom-batch ETL.

Now there are so many it’s a hard-to-maintain mess. So smart IT invests in a service bus, or something similar, and engineers its interfaces too, because just piling one on top of the other means the shiny new tech re-creates the same old tangle.

Today, lots of IT is happening outside the IT department, mostly in the form of SaaS brought in by business managers as islands of automation. Eventually they’ll get tired of having their staff rekey data into it. Be ready for them.

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