Open Dependable Distributed Systems
نویسنده
چکیده
The basic technology for open distributed processing is now understood. The challenge now is to be able to deliver appropriate non-functional guarantees (e.g. reliability, availability and performance), and to be able to integrate existing services and systems into this world of open dependable distributed computing. It is important to realize that there will not be one set of nonfunctional guarantees which are appropriate to all applications; any solution must allow the selection of guarantees to match different application requirements. Until this challenge is met, open distributed computing will not be used in business critical applications. This document introduces and sets the scope for the ANSA work on dependable distributed computing. It looks at the need for Open Dependable Distributed Systems and explains the ANSA vision for the development of such systems. Central to this vision is the concept of selective transparency. ANSA is based on a number of principles, the consequences of these principles for dependability are examined.
منابع مشابه
An ANSA Analysis of Open Dependable Distributed Computing
System dependability is increasing in importance in the market place. A recent report predicts that the market for fault-tolerant systems will double in the next three years. Within the context of large open distributed systems, dependability will be particularly important: the more components a system has the greater the probability that one of those components will be faulty. Over the next tw...
متن کاملSoftware Architectures of Dependable Systems: From Closed to Open Systems
INTRODUCTION Work in the software architecture domain primarily focuses on the standard (as opposed to exceptional) behavior of the software system. However, it is crucial from the perspective of software system robustness to also account for failure occurrences. The next section gives an overview of our past work towards assisting architecting of dependable distributed systems. It is then foll...
متن کاملResearch on Dependable Distributed Systems for Smart Grid
Within the last few years, smart grid has been one of major trends in the electric power industry and has gained popularity in electric utilities, research institutes and communication companies. As applications for smart grid become more distributed and complex, the probability of faults undoubtedly increases. This fact has motivated to construct dependable distributed systems for smart grid. ...
متن کاملA Middleware for Dependable Distributed Real-Time Systems
New middleware is proposed to support the development of dependable distributed real-time systems for avionics, sensor and shipboard computing. Many of these systems require distributed computing in order to perform increasingly complex missions. They also require real-time performance, dependable software, and may face constraints that limit hardware redundancy. Real-time performance and fault...
متن کامل