Research on IFML Modeling Considering Session Data

Abstract

The IFML standard does not include the concept of session data, which makes it sometimes difficult for the IFML model to accurately describe the source, destination, formation, and sharing of data for various elements of the web application front end. By extending the IFML metamodel, this paper introduces three new concepts and elements: Session Data, Using Session Data Flow and Providing Session Data Flow. The Using Session Data Flow points from the session data element to the interaction flow element, indicating that the interaction flow element uses the session data. The Providing Session Data Flow points from the interaction flow element to the session data element, indicating that the interaction flow element initializes or updates the Session data. Case studies show that the introduction of these three new elements in IFML model will make the representation of other interaction flow elements more intuitive, accurate and logical.