Chapter Extension 15 Reporting Systems and OLAP © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke.

Chapter Extension 15

Reporting Systems and OLAP

© 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

CE15-2 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Study Questions

How do reporting systems create information?

What are the components and characteristics of reporting systems?

How are reports authored, managed, and delivered?

How are OLAP reports dynamic?

CE15-3 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

How Do Reporting Systems Create Information?

Reporting systems– Create meaningful information from disparate

data sources– Deliver information to user on time– Generate information by:

Filtering data Sorting data Grouping data Making calculations based on data

CE15-4 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Components and Characteristics of Reporting Systems

Data read from disparate sources Data filtered, sorted, grouped, and

calculations performed System maintains database of reporting

metadata– Describes reports,users, groups,roles, events

Prepares reports and delivers to user

CE15-5 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Components of Reporting System

Figure CE15-3

CE15-6 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Report Type

Static– Prepared once from underlying data– Do not change

Dynamic– Changes to reflect most current data

Query– Prepared in response to queries from users

Online analytical processing (OLAP)– User can dynamically change report grouping structure

CE15-7 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Report Media

Paper PDFs Computer screens Digital dashboard Alerts Exported to an application program Published via Web service

CE15-8 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Report Mode

Push report– Organizations send report to users on preset

schedule

Pull report– Users request report from Web portal or digital

dashboard

CE15-9 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

How Are Reports Authorized, Managed, and Delivered?

Report authoring– Connect to data sources, create report structure, format

report Report management

– Define who receives what reports, when, and by what means

Report delivery– Pushes or pulls reports based on metadata– Uses security components to ensure who receives reports– Serves as intermediary between users and report generator

CE15-10 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Semantic Security

Security is a difficult problem– Systems inadvertently divulge information– Physical security

Protect through passwords and permissions Delivery system must be secure

– Semantic security Unintended release of protected information through

release of unprotected reports Equally serious and more problematic

CE15-11 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

How Are OLAP Reports Dynamic?

Online analytical reports– Perform arithmetic operations on data– Dynamic

User can change report structure

– Measure Data item that is to be manipulated

– Dimension Characteristic of measure

CE15-12 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

OLAP Report

Figure CE15-8

CE15-13 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

OLAP Reports

OLAP cube– Presentation of measure with associated

dimensions– OLAP report

Users can alter format Users can drill down into data

– Divide data into more detail May require substantial computing power

CE15-14 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

OLAP Servers

Developed to perform OLAP analysis Server reads data from operational database Performs calculations Stores results in OLAP database

– MOLAP, ROLAP, HOLAP

CE15-15 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Role of OLAP Server and OLAP Database

Figure CE15-11

CE15-16 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Business Intelligence at Avnet, Inc.

Key player in electronics supply chain Problems with integration of disparate information

systems of acquisitions Developed OLAP applications to process financial

data– Slow and unreliable data

Company redesigned business intelligence systems– Better performance and reliability– Eased data integration

CE15-17 © 2008 Pearson Prentice Hall, Experiencing MIS, David Kroenke

Active Review

How do reporting systems create information?

What are the components and characteristics of reporting systems?

How are reports authored, managed, and delivered?

How are OLAP reports dynamic?