Search

Middleware has become an integral part of many distributed applications offering effective integration and interoperability solutions. In some situations a problem may occur where the integration of distributed information applications may be affected by scheduled unavailability of one or more of these applications. The scheduled unavailability occurs due to several reasons including application or data backup, software or hardware maintenance for the application's platform, executing periodic processes such as file reorganization or end-of-period processes, application maintenance, or application migration. This research introduces a new middleware service called Active Persistent Service. Unlike regular middleware persistent services, this active service can provide consistent responses instead of the unavailable applications for other applications. This service helps increase the integration availability of distributed applications without fully replicating the application environment such as application platforms, application programs and application data. The proposed service can be used to maintain the integration among distributed applications during scheduled unavailability of one of these applications. In addition, the proposed service enables highly available applications integrations while maintaining the data and state consistency of the applications. This service provides a cost-effective solution for increasing the availability of applications integration. Key words: Middleware, highly available applications, distributed information applications, INTRODUCTION Integration middleware (6), (10), (17), (20) has become one of the important infrastructure components in many information technology departments. With the existence of robust integration middleware infrastructures, new applications [...]

A compiler-driven approach proposes the disk layout information to the compiler for getting the order in which parallel disks are accessed. The compiler-driven proactive approach to disk power management is better in performance.

ABSTRACT Nowadays, knowledge is viewed as a significant asset for organizations. Consequently, knowledge management has become an important factor to take into account within and between organizations. This paper proposes […]

The article assesses application of service-oriented architecture (SOA) model and its trend in Web services standards. It concludes SOA-based approach significant in the telecom domain provided careful planning and precise design govern it.

CASE DESCRIPTION The primary subject matter in this case is formulating strategic decisions that need to be made regarding a small entrepreneurial firm's future direction. The owners are a couple [...]

A method for solving the assignment problems of computers, using branch and bound algorithms, is presented.

Abstract--This work deals with aspects of support vector machine learning for large-scale data mining tasks. Based on a decomposition algorithm for support vector machine training that can be run in [...]

We have designed, built, and tested an on-line pre-analysis and data-storage unit for the data acquisition system of the 47r-detector CHIMERA. The unit uses special algorithms to perform particle identification and automatic peak detection. It tags in charge each event and stores the results on external unit, together with the raw data. It consists of two commercial 2 GHz workstations connected together through 1 Gb/s Ethernet boards and to the data acquisition system through a 100 Mb/s Ethernet. Index Terms--Data storage unit, multidetector online monitoring, online computational system.

The issue as to how a firm should determine its investment in an IT system is addressed, which is primarily designed to facilitate value chain activities. A critical aspect of a firm's IT investment is that it not only provides gains for the investing firm, but also creates positive spillovers for value chain members.

Study of a monotone process model for a one-component degenerative system, with one working state and many failure states is presented.

The authors identify and make suggestions to help make cognitive learning and consistency in computers better.

Proliferation and pace of advancing technologies warrant policy and strategic decision-making. Without thinking ahead, companies can loose marketshare and countries can yield comparative advantage. The rate at which burgeoning technologies progress, however, can make it difficult for corporations and governments alike to discern or better anticipate critical junctures in technology developments. This paper presents a conceptual, multidimensional framework, the 'evolutionary path', for understanding the stages of technological development in the civil space area. The analysis draws from three case studies communications satellites, computers, and launch vehicles - and shows how the implications and developments of new, breakthrough technologies differ from the incremental technology upgrades or the later emergence of interconnected systems and infrastructures.

Physician practices which have not addressed the year 2000 computer date transition issue are confronting potential system failures or cash flow and other operational disruptions that could leave them vulnerable to malpractice lawsuits. The computer systems of roughly 50% of all doctors are not Y2K compliant. It may be too late for these practices to become completely Y2K compliant if efforts have only been started in Aug 1999, but they may be able to at least minimize the impact of the transition., Tick, tick, tick. The 21st century arrives in only a few months. If your practice isn't ready, it may be time for damage control You can reschedule many events, but [...]

Many organizations worldwide have been evaluating a number of issues relating to the year 2000 computer date transition (Y2K) problem including the magnitude of the impact of the problem to their operations and their business. Small, medium-sized and large firms should have already taken considerable steps in Y2K compliance despite the cost involved or they may experience major problems, the consequences of which could be disastrous.

Does anyone know for sure how Y2K issues will play out on January 1,2000? No, of course not. But we have had a spectacular demonstration of the disruptive power of […]