Ara es mostren els items 1-13 de 13

    • A filtering engine for large conceptual schemas 

      Villegas Niño, Antonio (Universitat Politècnica de Catalunya, 2013-01-29)
      Tesi
      Accés obert
    • A method for filtering large conceptual schemas 

      Villegas Niño, Antonio; Olivé Ramon, Antoni (Springer, 2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We focus on the problem of filtering a fragment of the knowledge contained in a large conceptual schema. The problem appears in many information systems development activities in which people need to operate with a piece ...
    • A tool for filtering large conceptual schemas 

      Villegas Niño, Antonio; Sancho Samsó, María Ribera; Olivé Ramon, Antoni (Springer Verlag, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The wealth of knowledge the conceptual schemas of many real-world information systems contain makes them very useful to their potential target audience. However, the sheer size of those schemas makes it difficult to extract ...
    • A web-based filtering engine for understanding event specifications in large conceptual schemas 

      Villegas Niño, Antonio; Olivé Ramon, Antoni; Sancho Samsó, María Ribera (Springer, 2012)
      Comunicació de congrés
      Accés obert
      A complete conceptual schema must include all relevant general static and dynamic aspects of an information system. Event types describe a nonempty set of allowed changes in the population of entity or relationship types ...
    • Computing the Importance of Schema Elements Taking Into Account the Whole SCHEMA 

      Villegas Niño, Antonio (Universitat Politècnica de Catalunya, 2009-06)
      Projecte Final de Màster Oficial
      Accés obert
      Conceptual Schemas are one of the most important artifacts in the development cycle of information systems. To understand the conceptual schema is essential to get involved in the information system that is described within ...
    • Extending the methods for computing the importance of entity types in large conceptual schemas 

      Villegas Niño, Antonio; Olivé Ramon, Antoni (2010-11-01)
      Article
      Accés obert
      Visualizing and understanding large conceptual schemas requires the use of specific methods. These methods generate clustered, summarized, or focused schemas that are easier to visualize and understand. All of these methods ...
    • Improving the usability of HL7 information models by automatic filtering 

      Villegas Niño, Antonio; Olivé Ramon, Antoni; Vilalta, Josep (IEEE Computer Society Publications, 2010)
      Text en actes de congrés
      Accés obert
      The amount of knowledge represented in the Health Level 7 International (HL7) information models is very large. The sheer size of those models makes them very useful for the communities for which they are developed. However, ...
    • On computing the importance of associations in large conceptual schemas 

      Villegas Niño, Antonio; Olivé Ramon, Antoni; Sancho Samsó, María Ribera (2012)
      Article
      Accés restringit per política de l'editorial
      The visualization and the understanding of large conceptual schemas require the use of specific methods. These methods generate clustered, summarized or focused schemas that are easier to visualize and to understand. All ...
    • On computing the importance of entity types in large conceptual schemas 

      Villegas Niño, Antonio; Olivé Ramon, Antoni (Springer Verlag, 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The visualization and the understanding of large conceptual schemas require the use of specific methods. These methods generate clustered, summarized or focused schemas that are easier to visualize and to understand. All ...
    • Processador d'expressions OCL en un entorn de modelització conceptual 

      Villegas Niño, Antonio (Universitat Politècnica de Catalunya, 2008-06-16)
      Projecte/Treball Final de Carrera
      Accés obert
    • UML profile for MIF static models 

      Villegas Niño, Antonio; Olivé Ramon, Antoni (2014-05)
      Article
      Accés restringit per política de l'editorial
      This article summarizes our contribution to the 2012-2013 HL7 Tooling Challenge “Produce a UML Profile for MIF Static Models”. The main goal of the profile is to enable the representation in UML of the MIF static models. ...
    • UML profile for MIF static models. Version 1.0 

      Villegas Niño, Antonio; Olivé Ramon, Antoni (2013-09-26)
      Report de recerca
      Accés obert
      HL7 provides standards for interoperability that improve care delivery, optimize workflow, reduce ambiguity and enhance knowledge transfer among all of our stakeholders, including healthcare providers, government agencies, ...
    • Understanding constraint expressions in large conceptual schemas by automatic filtering 

      Villegas Niño, Antonio; Olivé Ramon, Antoni; Sancho Samsó, María Ribera (Springer, 2012)
      Text en actes de congrés
      Accés obert
      Human understanding of constraint expressions (also called schema rules) in large conceptual schemas is very di cult. This is due to the fact that the elements (entity types, attributes, relationship types) involved in an ...