The Overwhelming Pace Of Evolution In Technology Has Made It Possible To Develop Intelligent Systems Which Help Users In Their Dayly Life Activities. - Cordingly, Methods Of Recording, Managing And Analysing Data Have Evolved From The Very Simple ?le Systems Into Complex Ambient Supportive Intelligent Systems. This Book Arises As A Compilation Of Methods, Techniques And Tools C- Nected With Data Related Issues: From Modelling To Analysis. A Broad Range Of Approaches Such As Database Self-* Techniques For Ubiquitous Environments, Multimedia Data, Or Data Driven Models Will Be Reviewed. Di?erent Areas Of Applications, In Which Data Models Conceptualize Nowadays Reality, Starting From E-learning To Electric Transformers Will Be Considered. The Book Is A Collection Of Representative Contributions To Cover The Sp- Trum Related To Data Bases, Which Support Decision Making And Data Mining Methods As Well As Conceptualization. Datawarehouse Technology And M- Eling Are Presented In The ?rst Chapter Together With The Deep Review Of Datawarehouse Techniques For Supporting E-learning Processes With Special Emphasis On Data Cubes, All The Tools Are Considered In The Context Of Imp- Mentationofsoftwareapplication.thesecondchaptercontinueswiththes- Ilar Technology And Deals With The Community Data Warehouse Architecture.