BigDataStack delivers a complete high-performant stack of technologies addressing the needs of data operations and applications. The BigDataStack project was conceived as a data centric platform, integrating approaches for Data as a Service. Approaches for data cleaning, data layout and efficient storage, combined with seamless data analytics will be realised holistically across multiple data stores and locations. BigDataStack holistic solution incorporates approaches for data-focused application analysis and dimensioning, and process modelling towards increased performance, agility and efficiency. A toolkit allowing the specification of analytics tasks in a declarative way, their integration in the data path, as well as an adaptive visualization environment, realize BigDataStack’s vision of openness and extensibility.