Abstract
Modeling is one of the most important parts of requirements engineering. Most modeling techniques focus primarily on their pragmatics and pay less attention to their syntax and semantics. Different modeling techniques describe different aspects, for example, Object-Role Modeling (ORM) describes underlying concepts and their relations while System Dynamics (SD) focuses on the dynamic behavior of relevant objects in the underlying application domain. In this paper we provide an inductive definition for a generic modeling technique. Not only do we describe the underlying data structure, we also show how states can be introduced for relevant concepts and how their life cycles can be modeled in terms of System Dynamics. We also show how decomposition can be applied to master complex application domains. As a result we get an integrated modeling technique covering both static and dynamic aspects of application domains. The inductive definition of this integrated modeling technique will facilitate the implementation of supporting tools for practitioners.
Highlights
Requirements can be seen as high-level abstractions of services with precisely stated constraints that are provided by a method under which they function [1], [2]
Do we describe the underlying data structure, we show how states can be introduced for relevant concepts and how their life cycles can be modeled in terms of System Dynamics
In Subsection 2.4 we describe and prove some properties, and, in Subsection 2.5 the semantics are formally described by an inductive definition
Summary
Requirements can be seen as high-level abstractions of services with precisely stated constraints that are provided by a method under which they function [1], [2]. This paper contributes towards improving SD model conceptualization by introducing an inductive definition and introducing states to a static modeling method called Object-Role Modeling (ORM). An ORM scheme basically is a grammar describing that communication This grammar is referred to as information grammar. Object Role Calculus (ORC) ([5]) and ORM2 ([6]) are examples of such generic systems for constructing sentences. These sentence will be referred to as information descriptors. In order to generate research results which are acceptable and applicable to different communities, we have adopted a very general mechanism for the specification of models: inductive definitions.
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