In this paper we present an experience in architectural extension. The goal of our project was to provide Active Objects in the Java 2 Enterprise Edition (J2EE) reference architecture by suitable extensions that should not violate the architectural J2EE principles. Our approach to the problem was rather formal. We first formalized the notion of Active Object, the basic characteristics of the J2...

looking from an historical perspective, it can be seen that many civilizations have lived in the country and consequently produced many different cultures and architectural products. one of the oldest cities which contain such historical examples which have lived until present is tabriz. its traditional houses are the most important places to represent the life style of the past. lack of recogn...

The meteoric rise of mobile software that we have witnessed in the past decade parallels a paradigm shift in its design, construction, and deployment. In particular, we argue that today’s mobile software, with its rich ecosystem of apps, would have not been possible without the pioneering advances in software architecture research in the decade that preceded it. We describe the drivers that ele...

This paper presents the architecture of the VHD++ real-time development framework that after several years of intensive research, design, and development effort has been released and enters its validation phase. This paper discusses the key aspects involved in architectural structure, design and practical implementation of an efficient, flexible and extendible real-time software framework based...

Many human activities today depend critically on systems where substantial functionality has been realized using complex software. Therefore, appropriate means to achieve a sufficient degree for dependability are required, which use the available information about the software components and the system architecture. For the special case of servicebased architectures – an architecture proposed t...

In this paper, we argue that pervasive applications need to be aware of and adaptive to network conditions. We begin with an overview of three software projects in which we are currently involved, and highlight network awareness and application adaptability as a common thread among them. We argue that these features stem from the fundamental architectural principles of the Internet. We generali...

This paper presents the architecture of the VHD++ real-time development framework that after several years of intensive research, design, and development effort has been released and enters its validation phase. This paper discusses the key aspects involved in architectural structure, design and practical implementation of an efficient, flexible and extendible real-time software framework based...

Intelligent multimedia presentation systems (IMMPS) have to take into account pragmatics and human factors such as the specificities of human perception, attention, memory, conceptualization, and language. Using a conversational animated agent or not, some principles can be followed to increase the communicative abilities of interactive systems. In this paper we propose a set of such principles...