Solutions have been proposed to support awareness in groupware. Frequently, this requirement is fulfilled by similar functionalities that are implemented in different modules within these collaborative applications. These solutions usually represent crosscut concerns related to awareness by the use of object-oriented programming. As a result, tightly coupled components are generated as well as ...

We present a new 3D scene description language, Object-Oriented VRML, to show how VRML can be extended to incorporate object-oriented design principles. Object-Oriented VRML supports the creation of objects in an object-oriented style. It is based on a safe object type system in which runtime type errors are not generated. It facilitates the efficient implementation of virtual environment syste...

We are grateful for the four thought-provoking and informative Commentaries provided by expert scholars in personoriented and idiographic research. The Commentaries of Peter Molenaar; Eun Young Mun, Marsha Bates, and Evgeny Vaschillo; Nicholas Ialongo; and Alexander von Eye offer alternative perspectives on the extent of person-oriented theories’ testability using person-oriented methods in dev...

ions for SOC We can view SOC in terms of several different cross-cutting levels of abstractions, ranging from those that concern services within an application to those that concern service applications interacting across enterprises. Let’s consider a typical surgery division in a large hospital. One challenge in such a setting would be to make the payroll, scheduling, and billing systems inter...

In the paper a new approach to data representation and manipulation is described, which is called the concept-oriented data model (CODM). It is supposed that items represent data units, which are stored in concepts. A concept is a combination of superconcepts, which determine the concept's dimensionality or properties. An item is a combination of superitems taken by one from all the superconcep...

This paper presents three principles for the design and construction of objectoriented operating systems. These principles are based on the design of Choices, an object-oriented operating system that is implemented on the Encore Multimax shared memory multiprocessor. Choices is written entirely in C++, an object-oriented language that supports inheritance through class hierarchies. C++ is compi...

View materialization is known to be a valuable technique for performance optimization in relational databases, and much work has been done addressing the problem of consistently maintaining relational views under update operations. However, little progress has been made thus far regarding the topic of view materialization in object-oriented databases (OODBs). In this paper, we demonstrate that ...

Grid middleware support and the Web Services domain have advanced significantly over recent years, reaching a point where resource exposition and usage over the web has not only become feasible, but an actual commercial reality. Nonetheless, commercial uptake is still slow, and certainly not progressing the same way as other web developments have been taking place this is mostly due to the fact...

ion refers to the level of the concepts used in a specification. The ideal abstraction is sufficiently high-level to hide details and reduce complexity, yet sufficiently low-level to support drawing the necessary conclusions. Tropos and i* offer high-level abstractions such as goals, capabilities, and goal dependencies. Sommerville et al. [2009] apply high-level notions of responsibility and de...

Software engineering was introduced to cope with software crisis with two fundamental principles: separation of concerns and modularity. Many programming paradigms have been proposed and used while considering the fundamental principles from the early days. Complex software systems were successfully modularized but complete separation of concerns is still impossible to achieve using today’s mos...