Behavior of geographic objects holds a critical role in spatial databases. This, along with objects’ position and space-varying attributes, form a minimal set of concepts sufficient to capture spatial peculiarities in terms of the object-oriented rational. We present the semantics and the graphical notation of a prototypical object-oriented model for the conceptual design of spatial databases: ...

Although object-oriented paradigm is becoming a more realistic approach to the development of large-scale software systems, the existing object-oriented notations and methodologies do not fully support the development of distributed object systems. In this paper, we integrate Meta-Object Protocol (MOP) into a de facto standard object-oriented modeling language UML together to build a software a...

As aspect-oriented programming techniques move into mainstream use, it is likely that more software developers will be modeling systems with aspect-oriented features using the Unified Modeling Language. And with the Object Management Group considering revised standards for UML 2.0, it is an appropriate time to consider UML standards for aspect-oriented elements. This paper considers how aspect-...

The objective of this paper is to review object-oriented (OO) approaches to data modeling and data handling and their usefulness in transportation planning and modeling in general and Intelligent Transportation Systems in particular. The paper begins with a discussion of the current GIS data model for representing a transportation network and the most common database management systems used in ...

The old conventional wisdom is easily explained. Being implementation oriented, OMT is very helpful for programmers struggling with their source code. The new, emerging conventional wisdom stems from the fundamental weaknesses of OMT. Since it is based on object-oriented programming languages and entity-relationship modeling, it misses that the essence of object orientation is object identity a...

Knowledge Intensive CAD requires extension of the object-oriented paradigm because object-oriented hierarchies are fundamentally based upon ancestral relations. Knowledge Intensive CAD demands software capabilities to allow the user to model relationships that are signiicantly more complex than inheiritance. Propagations are proposed as an object-oriented software engineering extension to facil...

The Fusion and Syntropy Object-Oriented methods reflect some of the most rigorous object-oriented modeling concepts and experiences currently available. In this paper we identify similarities and differences between the two methods, and discuss how the best concepts from each of these methods can be combined to obtain clearer, more precise analysis models, specifications, and designs, and can b...

Abstract thinking is a vital skill when learning computer science. Object technology and the concepts it is based upon make this skill even more crucial. However, previous research works show that students in top universities as well as experienced practitioners in industry encounter difficulties in thinking in abstract terms while practicing object oriented development. In this paper we sugges...

Behavior of geographic objects holds a critical role in spatial databases. This, along with objects’ position and space-varying attributes, form a minimal set of concepts sufficient to capture spatial peculiarities in terms of the object-oriented rational. We present the semantics and the graphical notation of a prototypical object-oriented model for the conceptual design of spatial databases: ...

In object-oriented software engineering roles are considered both classifications and instances. To reduce the gap between the conceptual modeling of roles and a corresponding implementation, we propose a new role modeling concept based on warped inheritance hierarchies. We integrated this new modeling concept in our prototype-based object-oriented round-trip engineering environment SelfSync. I...