Inmon gets it wrong (again...)
{Prelude: I’d like to tip my hat to the incredible hubris of a man who says in his bio that he’s “universally recognised” as the “father of data warehousing”. At least have the decency to get someone else to say it and then use it as a quote.}
In his article last week (A Data Warehousing Pop Quiz) takes aim at the new 24x7 / Real-Time data warehousing vendors (and pundits). His “beef” with them is that data warehouses are “for management” and they “don’t need” data this frequently. He then goes on to extrapolate that real-time data warehouses are “not data warehouses” they’re actually “transaction systems”. I call bullsh!t.
Two key trends in business over the last decade have brought real-time data to the forefront: 1-pushing decisions down closer to the “coal face”, 2-spreading work across many time zones world wide. Added to that the number of systems in a business has mushroomed from 2-3 in the 80’s to 50-100 today.
The data warehouse has become the natural point of integration for many of these systems. It is precisely because it is “non-volatile and time invariant” that it is an ideal integration point. Moreover it is also much easier to deliver accurate data in a single place.
Finally, here is my key point, it is entirely possible to architect a ”non-volatile and time invariant” data warehouse that is also available 24/7 with near real time updating. In fact, it is the only way to make 24/7 work reliably.
If you are a Telco looking to implement a real-time data warehouse then I would like to introduce you to my employer: Scorecard Systems. We can implement our Subscriber Analysis application (on your current database platform) within 90 days.
…with near real-time updating, perfectly balancing values and full auditing.
