A Fact-Oriented Approach to Activity Modeling

Abstract

Abstract. In this paper we investigate the idea of using an ORM model as a starting point to derive an activity model, essentially providing an activity view on the original ORM model. When producing an ORM model of an inherently active domain, the resulting ORM model can provide an appropriate base to start out from. We will illustrate this basic idea by means of a running example. Much work remains to be done, but the results so-far look promissing.

Object-Role Modeling

“…Considerable research in under way to expand the scope of ORM to other areas such as dynamic rules (e.g. Proper et al, 2005;Balsters et. al., 2006;Morgan, 2006;Balsters & Halpin, 2008), and ontologies.…”

Accommodating mesodata into conceptual modelling methodologies

“…Research has explored its use in conceptual and ontology modelling, including ORM-based approaches for modelling contextual information [25], e-tutorial systems [31], web systems [9] and in-house decision support systems [41]. ORM has also been used for business rules as a markup language [14] as well as for ontology modelling [26], and reactive behaviour [24] and temporal extensions have been proposed [42,43]. Extensions to ORM's precursor, NIAM [37,38], have also been proposed [44,8,4,55], including a transformation from NIAM into Optimal Normal Form 1 [32,33], a set of rules for schema conversion from NIAM to EER and vice-versa [48], a semantic comparison of the ER model and NIAM [30] and the EER model and NIAM [28], as well as an analytical evaluation of NIAM's grammar for conceptual schema diagrams [54].…”

Formal Semantics of Dynamic Rules in ORM

“…8) or Event-ConditionAction (ECA) formalisms (e.g. de Brock [3], Lipeck [16], Chomicki [6], Paton & Díaz [20], Snodgrass [23]). Our approach differs from previous work by treating a dynamic rule as a special kind of static rule on the transaction history.…”