In simple terms "A Data Warehouse is a repository of integrated information, available for queries and analysis. Data and information are extracted from heterogeneous sources as they are generated....This makes it much easier and more efficient to run queries over data that originally came from different sources"   It sounds simple but there are many challenges in designing, developing, deploying and most importantly keeping it updated almost in real time from operational systems. At Projas we have years of experience deploying data warehousing solutions, our team can help you deliver comprehensive solutions by helping you in   Business requirements analysis   Data modeling of data warehouse (Star Schema)   Extracts design and development for loading data into data warehouse   Design and implementation of cubes for OLAP type requirements   Setting up reporting framework in the tool of your choice Technologies we have expertise in ETL tools Informatica, Oracle warehouse builder, PL/SQL, Perl BI tools Hyperion Essbase, Hyperion Analyzer, Brio, Microsoft Analysis Services, ProClarity, ArcPlan Dynasight , Microstrategy, Business objects, Oracle Reports, Oracle Discoverer, Orcale BI Beans, Customized reports Data standardization tools FirstLogic, Trillium Databases Oracle, Sybase, SQL Server, DB2, Teradata