Enterprises in numerous industries rely on Information Technology (IT) solutions today; enterprise applications support and partially automate the execution of the business processes in these enterprises. It is challenging to develop and integrate such enterprise applications, which can be characterized as logically layered and physically distributed software systems. In recent years, Service-O...

Typical approaches to design patterns present them in the catalog form. For undergraduate students this abstract description of the pattern makes it even more difficult to understand its purpose and need. In this paper we describe a tool used at a university course to enable the students to learn architectural patterns by looking at code. The tool presented in this paper shows the solution to a...

1 This research is sponsored in part by AFOSR (F49620-98-1-0217) and NSF (CCR-9988320). 2 Contact author. ABSTRACT Architectural descriptions of component style and behavior provide powerful predictive capabilities for interoperability conflicts. In this paper, we describe architectural indicators for a first pass interoperability assessment. These indicators form a set that is minimal and real...

As in many other software engineering activities, Non-Functional Requirements (NFR) are fundamental in the process of selection of the architectural style and the technologies for developing a software system. To know more about this issue, we are currently driving a survey to find out which architectural styles and technologies are being in use in IT companies and organizations, and their rela...

REpresentational State Transfer (REST) guided the creation and expansion of the modern web. What began as an internet-scale distributed hypermedia system is now a vast sea of shared and interdependent services. However, proposed Web Services protocols abandon REST altogether in favor of SOAP (Simple Object Access Protocol) exchanges codified in XML that hijack HTTP (HyperText Transport Protocol...

Patterns such as problem frames and architectural styles are used here to support the formal specification and the development of information systems. New problem frames specific to information systems are proposed to describe identified sub-problems and to help the formal specification task. Recomposition is achieved through a component based approach and an architectural style that puts toget...

Software architects struggle to choose an adequate architectural style for multi-tenant software systems. Bad choices result in poor performance, low scalability, limited flexibility, and obstruct software evolution. We present a comparison of 12 Multi-Tenant Architecture (MTA) patterns that supports architects in choosing the most suitable architectural pattern, using 17 assessment criteria. B...

Motivated by emerging battery-operated applications that demand intensive computation in portable environments, techniques are investigated which reduce power consumption in CMOS digital circuits while maintaining computational throughput. Techniques for low-power operation are shown which use the lowest possible supply voltage coupled with architectural, logic style, circuit, and technology op...