Academic Tutorials



English | French | Portugese | German | Italian
Home Advertise Payments Recommended Websites Interview Questions FAQs
News Source Codes E-Books Downloads Jobs Web Hosting
Chats

Data Warehousing
Datawarehousing Introduction
Datawarehousing Glance
Datawarehousing Overview
Datawarehousing Tools
Datawarehousing Methods
Datawarehousing Design
Datawarehousing Assess
Datawarehousing Structure
Datawarehousing Protect
Datawarehousing Uses
Datawarehousing Historical Information
Datawarehousing Manage a Data
Datawarehousing Manage Meta Data
Datawarehousing Architecture
Datawarehousing Records
Datawarehousing Advantages
Datawarehousing Data Mart
Datawarehousing Principles
Datawarehousing Benefits
Datawarehousing Disadvantages
Datawarehousing Issues
Datawarehousing Requirements
Datawarehousing Useful
Datawarehousing Themes
Datawarehousing Building
Datawarehousing Rating
Datawarehousing differ from a Database
Datawarehousing Efficient Process
Datawarehousing Quality Management
Datawarehousing Evaluate the Software
Datawarehousing Challenges
Datawarehousing Non Technical

HTML Tutorials
HTML Tutorial
XHTML Tutorial
CSS Tutorial
TCP/IP Tutorial
CSS 1.0
CSS 2.0
HLML
XML Tutorials
XML Tutorial
XSL Tutorial
XSLT Tutorial
DTD Tutorial
Schema Tutorial
XForms Tutorial
XSL-FO Tutorial
XML DOM Tutorial
XLink Tutorial
XQuery Tutorial
XPath Tutorial
XPointer Tutorial
RDF Tutorial
SOAP Tutorial
WSDL Tutorial
RSS Tutorial
WAP Tutorial
Web Services Tutorial
Browser Scripting
JavaScript Tutorial
VBScript Tutorial
DHTML Tutorial
HTML DOM Tutorial
WMLScript Tutorial
E4X Tutorial
Server Scripting
ASP Tutorial
PERL Tutorial
SQL Tutorial
ADO Tutorial
CVS
Python
Apple Script
PL/SQL Tutorial
SQL Server
PHP
.NET (dotnet)
Microsoft.Net
ASP.Net
.Net Mobile
C# : C Sharp
ADO.NET
VB.NET
VC++
Multimedia
SVG Tutorial
Flash Tutorial
Media Tutorial
SMIL Tutorial
Photoshop Tutorial
Gimp Tutorial
Matlab
Gnuplot Programming
GIF Animation Tutorial
Scientific Visualization Tutorial
Graphics
Web Building
Web Browsers
Web Hosting
W3C Tutorial
Web Building
Web Quality
Web Semantic
Web Careers
Weblogic Tutorial
SEO
Web Site Hosting
Domain Name
Java Tutorials
Java Tutorial
JSP Tutorial
Servlets Tutorial
Struts Tutorial
EJB Tutorial
JMS Tutorial
JMX Tutorial
Eclipse
J2ME
JBOSS
Programming Langauges
C Tutorial
C++ Tutorial
Visual Basic Tutorial
Data Structures Using C
Cobol
Assembly Language
Mainframe
Forth Programming
Lisp Programming
Pascal
Delphi
Fortran
OOPs
Data Warehousing
CGI Programming
Emacs Tutorial
Gnome
ILU
Soft Skills
Communication Skills
Time Management
Project Management
Team Work
Leadership Skills
Corporate Communication
Negotiation Skills
Database Tutorials
Oracle
MySQL
Operating System
BSD
Symbian
Unix
Internet
IP-Masquerading
IPC
MIDI
Software Testing
Testing
Firewalls
SAP Module
ERP
ABAP
Business Warehousing
SAP Basis
Material Management
Sales & Distribution
Human Resource
Netweaver
Customer Relationship Management
Production and Planning
Networking Programming
Corba Tutorial
Networking Tutorial
Microsoft Office
Microsoft Word
Microsoft Outlook
Microsoft PowerPoint
Microsoft Publisher
Microsoft Excel
Microsoft Front Page
Microsoft InfoPath
Microsoft Access
Accounting
Financial Accounting
Managerial Accounting
Network Sites


Data Warehouse Design


Previoushome Next






Data Warehouse Design

Managing the design, development, implementation, and operation of even a single corporate data warehouse can be a difficult and time consuming task. The following are the primary steps to ensure a successful data warehouse development effort.


A D V E R T I S E M E N T

Problem Definition

The definition and recording of the problem to be solved is one of the most often overlooked step of any development effort. For Data Warehousing design, ignoring this step can lead to disaster. At this step the following obvious questions are targeted:

  • Do I Need a Data Warehouse?
  • What specific Problems will it solve?
  • What are my available resources (time, money, and personnel)?
  • What criteria will I use to measure success?
  • Should I outsource all, some, or none of the development and operation?
  • Am I upgrading an existing system, converting from a legacy system, or developing from scratch?

      Requirements Analysis

      Performing a requirements analysis is critical to the success of any project. Without a clear goal in mind, success is dubious. There are a number of different philosophies about requirements analysis: top down, bottom up, inside out, etc. The following steps work fine in analysis of data warehouse rtequirements:

      • Clearly state the problem(s) you wish to solve.
      • Identify all data sources and formats.
      • Identify the users of the completed system.
      • Formulate a specific budget - time, money, personnel.
      • Ask identified users to specifically state what they expect the system to do.
      • Ask management to specifically state their success criteria.
      • Separate their requirements from their "desirements." Only design to requirements. The enhancement phase is where you address the "desirements."
      • Group and "bubble-up" requirements.
      • Generate a prioritized requirements table listing the requirement, where it came from, the success criteria, and priority. Keep this table high-level. A table with a dozen requirements will be much easier to manage than one with hundreds.
      • Produce a detailed development schedule including hardware, software, personnel, documentation, and reviews. Include outsourcing requirements and long lead-time items.
      • Get a sign-off of the requirements, resource allocation, and schedule from top management before you go any further.

      Information/Data Modeling

      Information and Data modeling, along with the definition of the metadata, is the single most important activity in the design of a data warehouse. If this step is done correctly, success is almost ensured. If not, then areas such as flexibility, scalability, and usability will suffer. Information modeling is best left to the experts.

      Information/Data Modeling

      There are many design methodologies. Rapid Prototyping should be used for small to medium projects, while Structured Development is suitable for large or very complex projects.

      Development & Documentation

      Once the requirements analysis is well underway, the prototypes are working, and the focus groups are becoming happy, it's time to begin the development. Coordinating hardware and software purchases and upgrades, server and hardware installation, software and database development, documentation guides and manuals, reviews, and testing can become a full-time job. The key to keeping a handle on all of this to maintain a good written schedule that everyone can view and to have periodic "all-hands" reviews.

      Test & Review

      Testing and Reviews take place throughout the development cycle, including prototyping, development, deployment, operations, and enhancements. It never ends. It is critical for developing a system that works and meets each of the requirements. Testing is time consuming, tedious work and preparing for reviews and analyzing results can take much longer than you might think, but it can catch most problems before they become too big.

      Deployment & Training

      Once the development is complete, quality assurance is satisfied, the documentation is ready, and all the "off-the-shelf" products have arrived, it's time to put everything together. This can be a highly disruptive time. Make sure that you have full management support and that they understand the nature and effect of the installation and deployment disruption. Scheduling training sessions concurrently with the installation can be an effective use of time. The best way to ensure success is to effectively train the users so that they will actually use the system and possibly sing its praises. Training is ongoing. Each time enhancements are added or new user is appointed, new training sessions must be scheduled.

      Operation

      Data warehouses usually contain two or more servers. Tasks such as backups, bug fixes, software updates, hardware maintenance and upgrades, media services, account maintenance, security patches, and other similar tasks must be performed regularly. Operation and maintenance of such services requires an operations staff.

      Operation

      There is always one thing you can count on: "Requirements Creep." The more successful the data warehouse, the faster requirements creep will occur. Make sure that you have designed in the ability to add features from the very beginning. Remember to design in scalability and flexibility at all phases of development.

      Support

      A knowledgeable, available, responsive help desk is critical to the overall success of the project. Users will always find new uses for a well-designed system and problems will inevitably occur. Without a help desk, a data warehouse can become dated and under-utilized. Deployment of an excellent support team is the single most important function that ensures the continued success of a data warehouse.



Be the first one to comment on this page.




  Data Warehousing eBooks

No eBooks on Data Warehousing could be found as of now.

 
 Data Warehousing FAQs
More Links » »
 
 Data Warehousing Interview Questions
More Links » »
 
 Data Warehousing Articles
More Links » »
 
 Data Warehousing News
More Links » »
 
 Data Warehousing Jobs
More Links » »

Share And Enjoy:These icons link to social bookmarking sites where readers can share and discover new web pages.
  • blinkbits
  • BlinkList
  • blogmarks
  • co.mments
  • connotea
  • del.icio.us
  • De.lirio.us
  • digg
  • Fark
  • feedmelinks
  • Furl
  • LinkaGoGo
  • Ma.gnolia
  • NewsVine
  • Netvouz
  • RawSugar
  • Reddit
  • scuttle
  • Shadows
  • Simpy
  • Smarking
  • Spurl
  • TailRank
  • Wists
  • YahooMyWeb

Previoushome Next

Keywords: data warehouse structure,data warehouse archiecture,data warehouse advantages,data warehouse design,data warehouse issues

HTML Quizzes
HTML Quiz
XHTML Quiz
CSS Quiz
TCP/IP Quiz
CSS 1.0 Quiz
CSS 2.0 Quiz
HLML Quiz
XML Quizzes
XML Quiz
XSL Quiz
XSLT Quiz
DTD Quiz
Schema Quiz
XForms Quiz
XSL-FO Quiz
XML DOM Quiz
XLink Quiz
XQuery Quiz
XPath Quiz
XPointer Quiz
RDF Quiz
SOAP Quiz
WSDL Quiz
RSS Quiz
WAP Quiz
Web Services Quiz
Browser Scripting Quizzes
JavaScript Quiz
VBScript Quiz
DHTML Quiz
HTML DOM Quiz
WMLScript Quiz
E4X Quiz
Server Scripting Quizzes
ASP Quiz
PERL Quiz
SQL Quiz
ADO Quiz
CVS Quiz
Python Quiz
Apple Script Quiz
PL/SQL Quiz
SQL Server Quiz
PHP Quiz
.NET (dotnet) Quizzes
Microsoft.Net Quiz
ASP.Net Quiz
.Net Mobile Quiz
C# : C Sharp Quiz
ADO.NET Quiz
VB.NET Quiz
VC++ Quiz
Multimedia Quizzes
SVG Quiz
Flash Quiz
Media Quiz
SMIL Quiz
Photoshop Quiz
Gimp Quiz
Matlab Quiz
Gnuplot Programming Quiz
GIF Animation Quiz
Scientific Visualization Quiz
Graphics Quiz
Web Building Quizzes
Web Browsers Quiz
Web Hosting Quiz
W3C Quiz
Web Building Quiz
Web Quality Quiz
Web Semantic Quiz
Web Careers Quiz
Weblogic Quiz
SEO Quiz
Web Site Hosting Quiz
Domain Name Quiz
Java Quizzes
Java Quiz
JSP Quiz
Servlets Quiz
Struts Quiz
EJB Quiz
JMS Quiz
JMX Quiz
Eclipse Quiz
J2ME Quiz
JBOSS Quiz
Programming Langauges Quizzes
C Quiz
C++ Quiz
Visual Basic Quiz
Data Structures Using C Quiz
Cobol Quiz
Assembly Language Quiz
Mainframe Quiz
Forth Programming Quiz
Lisp Programming Quiz
Pascal Quiz
Delphi Quiz
Fortran Quiz
OOPs Quiz
Data Warehousing Quiz
CGI Programming Quiz
Emacs Quiz
Gnome Quiz
ILU Quiz
Soft Skills Quizzes
Communication Skills Quiz
Time Management Quiz
Project Management Quiz
Team Work Quiz
Leadership Skills Quiz
Corporate Communication Quiz
Negotiation Skills Quiz
Database Quizzes
Oracle Quiz
MySQL Quiz
Operating System Quizzes
BSD Quiz
Symbian Quiz
Unix Quiz
Internet Quiz
IP-Masquerading Quiz
IPC Quiz
MIDI Quiz
Software Testing Quizzes
Testing Quiz
Firewalls Quiz
SAP Module Quizzes
ERP Quiz
ABAP Quiz
Business Warehousing Quiz
SAP Basis Quiz
Material Management Quiz
Sales & Distribution Quiz
Human Resource Quiz
Netweaver Quiz
Customer Relationship Management Quiz
Production and Planning Quiz
Networking Programming Quizzes
Corba Quiz
Networking Quiz
Microsoft Office Quizzes
Microsoft Word Quiz
Microsoft Outlook Quiz
Microsoft PowerPoint Quiz
Microsoft Publisher Quiz
Microsoft Excel Quiz
Microsoft Front Page Quiz
Microsoft InfoPath Quiz
Microsoft Access Quiz
Accounting Quizzes
Financial Accounting Quiz
Managerial Accounting Quiz
Testimonials | Contact Us | Link to Us | Site Map
Copyright ? 2008. Academic Tutorials.com. All rights reserved Privacy Policies | About Us
Our Portals : Academic Tutorials | Best eBooksworld | Beyond Stats | City Details | Interview Questions | Discussions World | Excellent Mobiles | Free Bangalore | Give Me The Code | Gog Logo | Indian Free Ads | Jobs Assist | New Interview Questions | One Stop FAQs | One Stop GATE | One Stop GRE | One Stop IAS | One Stop MBA | One Stop SAP | One Stop Testing | Webhosting in India | Dedicated Server in India | Sirf Dosti | Source Codes World | Tasty Food | Tech Archive | Testing Interview Questions | Tests World | The Galz | Top Masala | Vyom | Vyom eBooks | Vyom International | Vyom Links | Vyoms | Vyom World | Important Websites
Copyright ? 2003-2024 Vyom Technosoft Pvt. Ltd., All Rights Reserved.