The essence of component-oriented programming is a new understanding of extensibility in which the development and integration of extensions is a distributed activity, not a centralized one as in previous software development paradigms. Component-oriented programming languages must therefore be designed to have certain basic properties that support rather than impede the distributed extensibili...

This paper describes a structuring mechanism for grouping objects in a distributed object-oriented language. A group structuring mechanism provides a single flexible method for managing distributed applications that involve complicated communication protocols and sophisticated structure. We have added such a mechanism to the Emerald distributed object-oriented language and its runtime system. O...

With the advent of aspect-oriented programming, the need for adequate techniques for handling aspect-oriented artifacts in the early phases of the software engineering process has emerged. In this paper, we present an aspect-oriented language extension for an integrated modeling language based on object models. We present the way aspect constructs can be handled in requirements and architectura...

Object-oriented programming has recently emerged as one of the most important programming paradigms. While object-oriented programming clearly owes an intellectual debt to AI, it appears to be displacing some AI techniques, such as rule-based programming, from the marketplace. This need not be so as path-based rules|forward-chaining production rules that are restricted to follow pointers betwee...

This paper presents logical foundations for the most important object-oriented language features, including abstract types, dynamic binding, subtyping, and inheritance. These foundations are introduced along with an object-oriented kernel language. We show how object environments of such languages can be formalized in an algebraic way. Based on this foundation, we develop a Hoare-style logic fo...

Component-oriented software development has become an important approach to building complex software systems. Computer Science students should learn the concepts and skills needed for component-oriented programming. This paper describes a component-oriented language BoxScript whose design seeks to address the needs of teachers and students for a clean, simple language. This paper presents the ...

This paper presents a novel typed deductive object-oriented database language, called ROL (Rule-based Object Language), which is being developed at the University of Regana. This language is a declarative language. It can naturally and directly support object-oriented features such as object identity, complex objects, classes, class hierarchy, multiple inheritance with overriding, and schema in...

Starting with a pragmatical (but formal) deenition of type in object-oriented languages, this paper proposes a method to test type safety in this kind of language. We say that a language is (type) safe if it ensures that, during the execution of a correct program, every message sent to an object is matched by an appropriate method. We deene a \typical" object oriented programming language, feat...

Abstract Objectives Although hospital chaplains play a critical role in delivering emotional and spiritual care to broad range of both religious non-religious patients, there is remarkably little research on the best practices or “active ingredients” chaplain consults. Here, we examined how chaplains’ compassion capacity was associated with their linguistic behavior hospitalized inpatients, lan...