10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07)最新文献_第5页

Compositional Schedulability Analysis of Hierarchical Real-Time Systems 分层实时系统的组合可调度性分析

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.25

A. Easwaran, Insup Lee, I. Shin, O. Sokolsky

{"title":"Compositional Schedulability Analysis of Hierarchical Real-Time Systems","authors":"A. Easwaran, Insup Lee, I. Shin, O. Sokolsky","doi":"10.1109/ISORC.2007.25","DOIUrl":"https://doi.org/10.1109/ISORC.2007.25","url":null,"abstract":"Embedded systems are complex as a whole but consist of smaller independent modules interacting with each other. This structure makes them amenable to compositional design. Real-time embedded systems consist of realtime workloads having deadlines. Compositional design of such systems can be done using real-time components arranged in a scheduling hierarchy. Each component consists of some real-time workload and a scheduling policy for the workload. To simplify schedulability analysis for such systems, analysis should be done compositionally using interfaces that abstract timing requirement of components. To facilitate analysis of dynamically changing systems, the framework should also support incremental analysis. In this paper, we overview our approach to compositional and incremental schedulability analysis of hierarchical real-time systems. We describe a compositional analysis technique that abstracts resource requirement of components using periodic resource models. To support incremental analysis and resource bandwidth minimization, we describe an extension to this interface model. Each extended interface consists of multiple periodic resource models for different periods. This allows the selection of a periodic model that can schedule the system using minimum bandwidth. We also account for context switch overhead of components in these extended interfaces. We then describe an associative composition technique for such interfaces, that supports incremental analysis","PeriodicalId":265471,"journal":{"name":"10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114499447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 32

TMO-NanoQ+: A Real-Time Kernel for Sensor Networks Supporting Time-Triggered and Message-Triggered Tasks TMO-NanoQ+:支持时间触发和消息触发任务的传感器网络实时内核

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.58

Jae-An Yi, S. Heu, Byuongkyu Choi, Hyun-Jun Kim, Hanseok Sue, Jung-Guk Kim

引用次数: 1

A Comparative Evaluation of EJB Implementation Methods EJB实现方法的比较评价

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.5

A. Stylianou, G. Ferrari, P. Ezhilchelvan

{"title":"A Comparative Evaluation of EJB Implementation Methods","authors":"A. Stylianou, G. Ferrari, P. Ezhilchelvan","doi":"10.1109/ISORC.2007.5","DOIUrl":"https://doi.org/10.1109/ISORC.2007.5","url":null,"abstract":"As e-businesses are becoming ubiquitous, enhancing the performance and scalability of e-business systems has become an increasingly important topic of investigation. As Vitruvius (70-25 BC) put it succinctly 'function follows form', the ability of a system to perform well and scale easily is influenced by how the system itself is formed or implemented. A common approach to implement e-business systems is to make use of off-the-shelf enterprise middleware systems, such as a J2EE-compliant application server. Such middleware systems handle several, often complex, issues and thus simplify application development. They however allow developers the freedom not to use particular forms of support they offer and build their own mechanisms instead. This flexibility gives rise to many implementation methods. The work reported here evaluates these methods for Response Time and Throughput under various environments related to both client side (external to the system) and application execution (internal). To this end, one of the most widespread technologies used by the industry, the Enterprise Java Beans (EJB), is chosen; we have considered six commonly used implementation methods for an e-auction application and five different client-side and execution environments. The resulting study, which involves 78 experimental runs, identifies the strengths and the weaknesses of each implementation method under 13 different scenarios. It thus offers reliable guidelines for developers and valuable insights to researchers.","PeriodicalId":265471,"journal":{"name":"10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130132914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Using Multi-Agent Principles for Implementing an Organic Real-Time Middleware 利用多代理原理实现有机实时中间件

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.61

M. Nickschas, U. Brinkschulte

引用次数: 6

Toward a Generic and Secure Software Platform for Sensor Network Nodes 面向传感器网络节点的通用安全软件平台

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.59

Y. Nakamoto, Shuhei Higashiyama, N. Chiba, Michio Kaneko, Yoko Furuzumi

{"title":"Toward a Generic and Secure Software Platform for Sensor Network Nodes","authors":"Y. Nakamoto, Shuhei Higashiyama, N. Chiba, Michio Kaneko, Yoko Furuzumi","doi":"10.1109/ISORC.2007.59","DOIUrl":"https://doi.org/10.1109/ISORC.2007.59","url":null,"abstract":"Small wireless nodes in sensor networks are increasing being deployed in a wide variety of applications. In this paper, we present ActiveBeans, a generic and secure software platform in a small wireless node employing the Java technologies for data management and sensor/actuator control applications inside a building. Small wireless nodes have been deployed everywhere, and have been used to manage data for applications, perform operations using the data or control sensor/actuator attached to the node. To deal with management data items and controlled devices in a node in a uniform manner, we introduce a node description in the XML format. ActiveBeans provides a Java software platform to access the node description securely. ActiveBeans has the following features: a small Java virtual machine with small footprint management for various input and output device using the generic framework, the data management, and the fine-grained access control. To decrease the Java program size, a generator customizes and optimizes the access control module in a host machine, which is downloaded into the node with a lightweight wireless management protocol.","PeriodicalId":265471,"journal":{"name":"10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122955296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Secure CAMIN Application System Based on Dependable and Secure TMO and RT-UCON 基于可靠安全TMO和RT-UCON的安全CAMIN应用系统设计

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.28

Jungin Kim, B. Thuraisingham

{"title":"Design of Secure CAMIN Application System Based on Dependable and Secure TMO and RT-UCON","authors":"Jungin Kim, B. Thuraisingham","doi":"10.1109/ISORC.2007.28","DOIUrl":"https://doi.org/10.1109/ISORC.2007.28","url":null,"abstract":"Increasingly the need for protecting information from unauthorized access has lead to more attention in the field of information security. Access control mechanisms have been in place for the last four decades and are a powerful tool utilized to ensure security. In a real-time distributed computing environment, systems have to meet timing constraints for time sensitive applications, such as obtaining financial quotes and operating command and control systems. However, real-time distributed computing environment security is yet to be investigated. Earlier work examined a Time Triggered Message Triggered Object (TMO) scheme that provides real-time services in a distributed computing environment secured by applying a Role-Based Access Control (RBAC). In this paper we describe the application of a sophisticated Usage Control (UCON) model for a TMO and subsequently design an application that utilizes a Coordinated Anti-Missile Interceptor Network (CAMIN) system. This application is a secure CAMIN based upon a secure TMO that applies a Real Time UCON (RT-UCON) in the CAMIN environment","PeriodicalId":265471,"journal":{"name":"10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Predictable Serialization in Java Java中的可预测序列化

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.48

D. Tejera, A. Alonso, M. D. Miguel

引用次数: 12

A Profile for Safety Critical Java 安全关键Java的概要文件

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.9

Martin Schoeberl, Hans Søndergaard, Bent Thomsen, A. Ravn

引用次数: 40

LSynD: Localized Synopsis Diffusion LSynD:局部天气扩散

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.41

Andreea Berfield, Panos K. Chrysanthis, D. Mossé

引用次数: 2

Independent Model-Driven Software Performance Assessments of UML Designs UML设计的独立模型驱动软件性能评估

10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'07) Pub Date : 2007-05-07 DOI: 10.1109/ISORC.2007.39

Julie A. Street, IV RobertG.Pettit, H. Gomaa

引用次数: 4