Now showing items 1-8 of 8

  • A requirement-driven approach to the design and evolution of data warehouses 

    Jovanovic, Petar; Romero Moral, Óscar; Simitsis, Alkis; Abelló Gamazo, Alberto; Mayorova, Daria (2014-08-01)
    Article
    Restricted access - publisher's policy
    Designing data warehouse (DW) systems in highly dynamic enterprise environments is not an easy task. At each moment, the multidimensional (MD) schema needs to satisfy the set of information requirements posed by the business ...
  • BabbleFlow : a translator for analytic data flow programs 

    Jovanovic, Petar; Simitsis, Alkis; Wilkinson, Kevin (Association for Computing Machinery (ACM), 2014)
    Conference lecture
    Restricted access - publisher's policy
    A complex analytic data flow may perform multiple, inter-dependent tasks where each task uses a different processing engine. Such a multi-engine flow, termed a hybrid flow, may comprise subflows written in more than one ...
  • GEM: requirement-driven generation of ETL and multidimensional conceptual designs 

    Romero Moral, Óscar; Simitsis, Alkis; Abelló Gamazo, Alberto (2010-10-21)
    External research report
    Open Access
    At the early stages of a data warehouse design project, the main objective is to collect the business requirements and needs, and translate them into an appropriate conceptual, multidimensional design. Typically, this ...
  • Integrating ETL processes from information requirements 

    Romero Moral, Óscar; Jovanovic, Petar; Simitsis, Alkis; Abelló Gamazo, Alberto (Springer, 2012)
    Conference report
    Restricted access - publisher's policy
    Data warehouse (DW) design is based on a set of requirements expressed as service level agreements (SLAs) and business level objects (BLOs). Populating a DW system from a set of information sources is realized with ...
  • Quarry : digging up the gems of your data treasury 

    Jovanovic, Petar; Romero Moral, Óscar; Simitsis, Alkis; Abelló Gamazo, Alberto; Candón Arenas, Héctor; Nadal Francesch, Sergi (2015)
    Conference lecture
    Open Access
    The design lifecycle of a data warehousing (DW) system is primarily led by requirements of its end-users and the complexity of underlying data sources. The process of designing a multidimensional (MD) schema and back-end ...
  • Semantic web technologies for business intelligence 

    Berlanga, Rafael; Romero Moral, Óscar; Simitsis, Alkis; Nebot, Victoria; Pedersen, Torben; Abelló Gamazo, Alberto; Aramburu, María José (IGI Global, 2011)
    Part of book or chapter of book
    Restricted access - publisher's policy
    This chapter describes the convergence of two of the most influential technologies in the last decade, namely business intelligence (BI) and the Semantic Web (SW). Business intelligence is used by almost any enterprise to ...
  • Using semantic web technologies for exploratory OLAP: A survey 

    Abelló Gamazo, Alberto; Romero Moral, Óscar; Pedersen, Torben; Berlanga, Rafael; Nebot, Victoria; Aramburu, María José; Simitsis, Alkis (2015-02-01)
    Article
    Open Access
  • xPAD: A platform for analytic data flows 

    Simitsis, Alkis; Wilkinson, Kevin; Jovanovic, Petar (2013)
    Conference report
    Restricted access - publisher's policy
    As enterprises become more automated, real-time, and data-driven, they need to integrate new data sources and specialized processing engines. The traditional business intelligence architecture of Extract-Transform-Load ...