Entries by Brian Jones

MDM Architectural Styles: Domains Matter

In a previous blog I discussed the four primary MDM architectural styles: consolidated, registry, coexistence, and transactional. In case you missed it, read it here: MDM Architecture Styles – Do you have the right mix? Each has their individual strengths and weaknesses, but no single MDM architectural style is ideal for every application. 

MDM Architecture Styles – Do you have the right mix?

What is the right MDM architecture style for your organization? It’s definitely an open-ended question that deserves an informed answer, especially before making new investment decisions. But before tackling the question, it is useful to define and understand the MDM styles themselves. Dr. Dave Waddington of The Information Difference defined four broad styles in an […]

Estimating Velocity

Velocity is perhaps the most important concept in agile development. In his recent Agile 101 class at the TDWI BI Summit in San Diego, Ralph Hughes defined velocity as “The number of story points that can be delivered comfortably in an iteration.” That estimate effects many other estimates, such as the size and mix of […]

Is Your Agile Warehouse Project Stuck in Second Gear?

The first twenty-plus years of data warehouse projects yielded failure rates above fifty percent, and the waterfall methodology took much of the blame. Ironically, as Ralph Hughes points out in his book Agile Data Warehousing Project Management, the waterfall methodology itself was based on a “grievous misreading” of another work. Dr. Royce’s 1970 white paper […]

Big Data and Moneyball

Like many baseball fans, I was spellbound by Moneyball, the 2003 Michael Lewis book that told the story of how Oakland Athletics general manager Billy Beane and his staff leveled the playing field between baseball’s biggest teams and his small market club by finding overlooked value in the “big data” of baseball statistics.

In a Traditional Data Warehouse, Facts Can Be Slippery

Since the beginning of data warehousing, practitioners have been comforted to know that facts—the individual business events that are quantified and measured—don’t change once recorded. That’s generally true when your warehouse is fed from a few highly reliable sources like the enterprise ERP and CRM systems; however, many warehouses rely on data sets that originate […]