Data Quality Assessment by Arkady Maydanchik

By Arkady Maydanchik

Think a gaggle of prehistoric hunters armed with stone-tipped spears. Their primitive guns made looking huge animals, resembling mammoths, risky paintings. over the years, even though, a brand new breed of hunters constructed. they'd stretch the surface of a formerly killed vast at the wall and throw their spears, whereas watching which spear, thrown from which perspective and distance, penetrated the surface the simplest. the knowledge accumulated helped them make greater spears and boost larger looking ideas. caliber facts is the foremost to any development, if it is from the Stone Age to the Bronze Age. Or from the data Age to no matter what Age comes subsequent. The good fortune of enterprises and govt associations principally is dependent upon the potency with which they could acquire, manage, and make the most of facts approximately items, shoppers, rivals, and staff. thankfully, bettering your info caliber doesn't need to be this kind of colossal job. facts caliber evaluate is a needs to learn for an individual who must comprehend, right, or hinder facts caliber concerns of their association. Skipping thought and focusing in basic terms on what's sensible and what works, this article includes a confirmed method of picking, warehousing, and interpreting info mistakes. grasp concepts in facts profiling and collecting metadata, designing info caliber principles, organizing rule and blunder catalogues, and developing the dimensional facts caliber scorecard. David Wells, Director of schooling of the knowledge Warehousing Institute, says "This is a type of books that marks a milestone within the evolution of a self-discipline. Arkady's insights and strategies gas the transition of information caliber administration from artwork to technology -- from crafting to engineering. From deep adventure, with considerate constitution, and with attractive variety Arkady brings the self-discipline of information caliber to practitioners."

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Slone was the mo,1 important resource. If we could wa lk into a typical hun ler s hul (or a typical ca,-eman's ca,'c), \\" wou ld certainly nnd spears "ith sharpened Slone points. These spears were used by our carll' ancestors 10 hum many la'ge ani mal s. includ ing mammoths. E,'cry lime Ihc food supplies dwindled. men would gmb their spca,s nod go hunling. or course. hunting mammoths was a dangerous busine ss. and in many cases the spcar wou ld not penelraiC mammoth', 'lin. Most likely the Iridow o f the poor humer would make Slire that her ne~l husband uscd a dirrcrcnl "tid bet(er ' I>car O,er lime.

Tion·' "olume orth i, series 2. 5. BUILDING DATA QUALITY META DATA WAREHOUSE Thc firsl ilems 10 be called mel. dala were dala models. O,'er lime Ihe cOtICepl has Inken a much broadcr fonn. We no\\" appl~' lenn mt/a (iata 10 all dala Ihal pro"ide information aboul other data, Mela data playa critical role in Ihe infonnatioo ase. TI,cy lell U$ "hal Ihe dala really "'c3ns. , in whkh formal il is 'IOred_ where it came from. and wbat it is used for Meta data are the encyclopedia of koowh,dge about the da,", They arc the key wi thout which the data is like.

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