I just read some pretty exciting news: All the Big Data features in Pentaho Data Integration (Kettle) will be made available in the open source version. This means you have now free access to all the Hadoop, Cassandra, HBase, MongoDB steps and job entries, a move which will certainly increase the popularity of this ETL tool even further. The Kettle GUI allows you to easily create transformations and jobs which import, transform, export etc your data.You can find a very interesting tutorial on how to design a MapReduce job with Kettle ...
Monday, 30 January 2012
Saturday, 21 January 2012
Comparison of resource sharing features in open source reporting toolsIn large scale reporting projects sharing resources is key for efficiency. This article tries to compare the three most popular open source tools to understand to which extend their feature set supports the various resource files that are likely to be shared.As an example: Maintain style definitions in a centralized global file. Instead of having to change a particular style in...
Sunday, 8 January 2012
A high percentage of classic waterfall model business intelligence projects are failing. One of the main reasons for this is that the waterfall model is a sequential model: Simply speaking, you plan first, then develop, then test etc and then the whole project is supposed to be finished. BI project normally span several months. During this time, requirements change, the priority of the requirements might change, the understanding of the client in...
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