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copied!<p>The <a href="http://www.slideshare.net/mrm0/third-nature-open-source-data-warehousing" rel="noreferrer">Open Source Data Warehousing</a> does a great job at identifying OSS components that could be used to build a Data Warehouse stack: Infrastructure (servers, OS, databases), Integration Management (ETL, EAI, etc), Information Management (DW/Mart/ODS, OLap Servers, etc), Information Delivery (Portal, Dashboard, Analytics/OLAP Client, etc). Here is a summary:</p> <blockquote> <h2>Open Source BI/DW Projects</h2> <h3>BI and Analytics</h3> <ul> <li>BEE - <a href="http://bee.insightstrategy.cz/en/index.html" rel="noreferrer">http://bee.insightstrategy.cz/en/index.html</a></li> <li>BIRT - <a href="http://www.eclipse.org/birt" rel="noreferrer">http://www.eclipse.org/birt</a> </li> <li>JasperSoft – <a href="http://www.jaspersoft.com" rel="noreferrer">http://www.jaspersoft.com</a> </li> <li>MarvelIT - <a href="http://www.marvelit.com/dash.html" rel="noreferrer">http://www.marvelit.com/dash.html</a> </li> <li>OpenI – <a href="http://openi.sourceforge.net" rel="noreferrer">http://openi.sourceforge.net</a> </li> <li>OpenReports – <a href="http://oreports.com" rel="noreferrer">http://oreports.com</a> </li> <li>Orange - <a href="http://www.ailab.si/orange" rel="noreferrer">http://www.ailab.si/orange</a> </li> <li>Palo – <a href="http://www.palo.net" rel="noreferrer">http://www.palo.net</a> </li> <li>Pentaho - <a href="http://www.pentaho.com" rel="noreferrer">http://www.pentaho.com</a> </li> <li>R - <a href="http://www.r-project.org" rel="noreferrer">http://www.r-project.org</a> </li> <li>SpagoBI – <a href="http://spagobi.eng.it" rel="noreferrer">http://spagobi.eng.it</a> </li> <li>Weka - <a href="http://www.cs.waikato.ac.nz/~ml/index.html" rel="noreferrer">http://www.cs.waikato.ac.nz/~ml/index.html</a></li> <li>VitalSigns - <a href="http://vitalsigns.sourceforge.net/" rel="noreferrer">http://vitalsigns.sourceforge.net/</a> </li> </ul> <h3>Databases</h3> <ul> <li><a href="http://greenplum.org" rel="noreferrer">http://greenplum.org</a> (bizgres) </li> <li><a href="http://www.ingres.com" rel="noreferrer">http://www.ingres.com</a> </li> <li><a href="http://www.mysql.com" rel="noreferrer">http://www.mysql.com</a> </li> <li><a href="http://www.postgresql.org" rel="noreferrer">http://www.postgresql.org</a> </li> <li><a href="http://www.enterprisedb.com" rel="noreferrer">http://www.enterprisedb.com</a> </li> </ul> <h3>Integration</h3> <ul> <li>Apatar - <a href="http://www.apatar.com" rel="noreferrer">http://www.apatar.com</a> </li> <li>CloverETL - <a href="http://cloveretl.berlios.de/" rel="noreferrer">http://cloveretl.berlios.de/</a> </li> <li>JitterBit - <a href="http://www.jitterbit.com/" rel="noreferrer">http://www.jitterbit.com/</a> </li> <li>KETL - <a href="http://www.ketl.org" rel="noreferrer">http://www.ketl.org</a> </li> <li>Octopus - <a href="http://www.enhydra.org/tech/octopus/index.html" rel="noreferrer">http://www.enhydra.org/tech/octopus/index.html</a></li> <li>OSDQ - <a href="http://sourceforge.net/projects/dataquality" rel="noreferrer">http://sourceforge.net/projects/dataquality</a></li> <li>Pentaho - <a href="http://www.pentaho.com" rel="noreferrer">http://www.pentaho.com</a> </li> <li>Red Hat – <a href="http://www.redhat.com" rel="noreferrer">http://www.redhat.com</a> </li> <li>Saga.M31 Galaxy - <a href="http://galaxy.sagadc.com" rel="noreferrer">http://galaxy.sagadc.com</a> </li> <li>Talend - <a href="http://www.talend.com" rel="noreferrer">http://www.talend.com</a> </li> <li>SnapLogic – <a href="http://www.snaplogic.com" rel="noreferrer">http://www.snaplogic.com</a></li> </ul> </blockquote> <p>I recommend browsing the presentation. Good stuff.</p>

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