Collaborative learning enables individual learners to combine their own expertise, experience and ability to accomplish a mutual learning goal. The grouping of learners, and learning from social interactions with peer-learners, are two basic characteristics of collaborative learning. For individual learners to benefit from collaborative learning, individual learners with different characteristi...

Architectural styles represent composition patterns and constraints at the software architectural level and are targeted at families of systems with shared characteristics. While both style-specific and style-neutral modeling environments for software architectures exist, creation of such environments is expensive and frequently involves reinventing the wheel. This paper describes the rapid des...

In this paper, we present an architecture-based approach for modeling software reliability. Our approach aims at modeling reliability on various software infrastructures and in any stage of software life cycles. To this end, we utilize characteristics of architectural styles to capture non-uniform behaviors of software embodying heterogeneous architecture. Furthermore, a state model that synthe...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Research Problems and Motivations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Architectural Support for Tangible User Interfaces with Distributed, Heterogeneous Compu...

In this paper, we propose an analytical model for component-based heterogeneous software architecture reliability and a method to find the solution for finding the optimal reliability of the overall software system according to the reliability of each component, the operational profile, and the architecture of software. Our approach is based on Markov chain properties and architecture perspecti...

Ahmed Abd-Allah, Barry Boehm ([email protected], [email protected]) USC Center for Software Engineering Computer Science Department University of Southern California Los Angeles, CA 90089-0781 Abstract: A persistent problem in software engineering is how to put software systems together out of smaller subsystems: the problem of software composition. The emergence of software architectures ...

During component composition, mismatches may occur on different aspects, such as interaction behaviors between components and features imposed by architectural styles. In this paper, we studied architectural mismatches related to connecting components using a specified architectural style, which implies that the connections supported by components may be incompatible with the connection suppose...

Oberon-2 is an object-oriented language with a class structure based on type extension. The runtime structure of Oberon-2 is described and the low-level mechanisms for dynamic type checking explained. It is shown that the superior type-safety of the language, when used for programming styles based on heterogeneous, pointer-linked data structures, has an entirely negligible cost in runtime perfo...

This paper addresses the design of reactive real-time embedded systems. Such systems are often heterogeneous in implementation technologies and design styles, for example by combining hardware ASICs with embedded software. The concurrent design process for such embedded systems involves solving the specification, validation, and synthesis problems. We review the variety of approaches to these p...