This paper provides a new approach for object-oriented reengineering. One of the difficulty in software testing and maintenance has been identified as caused by the convention that code and its tests are developed and described separately. This paper develops a method of built-in test (BIT) for OO reengineering. The advantage of this method is that the BITs in reengineered OO software (OOS) can...

In this paper, we present a multi-formalism modeling framework (abbreviated by MFMF) for modeling and simulation. The proposed framework is defined based on the concepts of meta-models and uses object-orientation to overcome the complexities and to enhance the extensibility. The framework can be used as a basis for modeling by various formalisms and to support model composition in a unified man...

Contrary to speech interpretation by humans in which the same discourse may be interpreted differently by different subjects, for practical applications of computer understanding the result of interpretation should be unique for a given signal. Usually it is represented by an object which is an instance of class corresponding to a semantic structure which can be fairly complex even if it is bui...

We rephrase the problem of 3D reconstruction from images in terms of intersections of projections of orbits of custom built Lie groups actions. We then use an algorithmic method based on moving frames à la Fels-Olver to obtain a fundamental set of invariants of these groups actions. The invariants are used to define a set of equations to be solved by the points of the 3D object, providing a new...

Objectives: Persian is a pro-drop language with canonical Subject-Object-Verb (SOV) word order. This study investigates the acquisition of word order in Persian-speaking children. Methods: In the present study, participants were 60 Persian-speaking children (30 girls and 30 boys) with typically developing language skills, and aged between 30-47 months. The 30-minute language samples were audio...

In large persistent object systems it is possible to have many million (or eventually billion or more) objects in existence. These objects must be managed to enable their eeective and convenient use. At the heart of this management problem is the structure which maintains information about the objects and provides services on the objects using the information it maintains. We refer to this stru...

This paper presents an English upgrading course authoring environment for multiple authors collaborating via a distance education system. The course authoring follows a rigorous object-oriented structure, which allows easy search and retrieval functions for both the authoring and the learning environment counterpart. Moreover, authoring is supported by the concept mapping paradigm, where in our...