chapter 3 Flashcards

1
Q

data warehouse charecteristics

A
subject oriented
integrated
time-variant
nonvolatile
summarized
not normalized
metadata
web based
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2
Q

data mart

A

a departmental small-scale DW

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3
Q

ODS

A

operational data store

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4
Q

oper mart

A

operational data mart

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5
Q

EDW

A

enterprise data warehouse

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6
Q

metadata

A

data about data

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7
Q

ERP

A

enterprise resource planning

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8
Q

POS

A

point of sale

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9
Q

ETL

A

extract transform load

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10
Q

ETL process

A
select
extract
transform
integrate
load
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11
Q

common to my consulting approach

A
extract data from event source
sore in DW that provides
-single version of truth
-quality
-transactional system independence
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12
Q

EAI

A

enterprise application integration

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13
Q

EII

A

enterprise information integration

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14
Q

dimensional modeling

A

a retrieval based system that supports high=volume query access

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15
Q

star schema

A

the most commonly used and the simplest style of dimensional modeling
contains a fact table surrounded by and connected to several dimensional tables

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16
Q

multidimensionality

A

the ability to organize, present, and analyze data by several dimension, such as sales by region, by product, by salesperson, and by time

17
Q

slice

A

a subset of a multidimentional array

18
Q

dice

A

a slice on more than two dimensions

19
Q

drill down

A

navigating among levels of data ranging from the most summarizing up to the most detailed

20
Q

DWA

A

data warehouse administrator

21
Q

BRM

A

business performance management

22
Q

closed loop process to optimize business performance

A

strategize
plan
monitor
adjust

23
Q

six sigma

A

a performance management methodology aimed at reducing the number of defects in a business process to as close to zero defects per million opportunities