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2005 International Conference on Information and Knowledge Engineering, IKE'05

作者： Ku, Cyril S. Yoon, Suk-Chung Brooks, Gregory M. Department of Computer Science William Paterson University Wayne NJ 07470 United States Department of Computer Science Widener University Chester PA 19013 United States

ISBN: (纸本)9781932415810

object-oriented database system supports the powerful concepts of data abstraction and complex data modeling while deductive database system has inferential and declarative query capabilities. Previous research has demonstrated the advantages and feasibilities of the confluence of the declarative logic-based paradigm and the object-oriented paradigm in the dual-paradigm system of deductive object-oriented database systems. However, the previous research either concentrated on the homogeneous architecture of a complete logical system or the heterogeneous architecture with the schema rules carried over to the deductive database. Our research proposes the use of heterogeneous architecture that minimizes communications between an object-oriented database system and a deductive system. In this paper, we outline the architecture and the system of deductive rules. We demonstrate the efficiency in query processing by separating the schema rules of object orientation from the deductive rules. We also address the object-oriented relationships in this dual-paradigm database system.

关键词： Query processing

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object-oriented framework for the design of home/building automation systems

Object-oriented framework for the design of home/building au...

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作者： Araujo, Jair J. Pereira, Carlos E. Federal Center of Technological Education of Pelotas Informatics Institute UFRGS Brazil Electric Engineer Department Robotics Automation and Control Group UFRGS Brazil

ISBN: (纸本)008045108X

The increasing demand on functionalities in new home and building automation systems leads to a considerable complexity increase both in the development as well as in the operation and maintenance of these systems. The major challenge is how obtain systems entirely integrated from isolated devices and subsystems. It is believed that an important stage to assess the actual need of this integration is to project an automating system without a specific technological focus, which does not occur nowadays. Due to the lack of supporting tools for the project, the stages of specification and project are generally focused on the available technology for implementation. This article aims to fill in this gap by specifying an object-oriented framework for the development of applications in the building automation, enabling the modelling of the systems regardless of the technology it will use, leaving this mapping for the last stage of the project. Copyright © 2005 IFAC.

关键词： Automation

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Pluggable AOP - designing aspect mechanisms for third-party composition

Pluggable AOP - Designing aspect mechanisms for third-party ...

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OOPSLA'05 - 20th Annual ACM Conference on object-oriented Programming, systems, Languages, and Applications

作者： Kojarski, Sergei Lorenz, David H. Department of Computer Science University of Virginia Charlottesville VA 22904-4740 United States Northeastern University University of Virginia

Studies of Aspect-oriented Programming (AOP) usually focus on a language in which a specific aspect extension is integrated with a base language. Languages specified in this manner have a fixed, non-extensible AOP functionality. This paper argues the need for AOP to support the integration and use of multiple domain-specific aspect extensions together. We study the more general case of integrating a base language with a set of third-party aspect extensions for that language. We present a general mixin-based semantic framework for implementing dynamic aspect extensions in such a way that multiple, independently developed aspect mechanisms can be subject to third-party composition and work collaboratively. Principles governing the design of a collaborative aspect mechanism are aspectual effect exposure and implementation hiding. Copyright 2005 ACM.

关键词： object oriented programming

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A multi-agent based fault tolerance system for distributed multimedia object oriented environment: MAFTS

A multi-agent based fault tolerance system for distributed m...

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3rd ACIS International Conference on Software Engineering Research, Management and Applications, SERA 2005

作者： Ko, Eung-Nam Department of Information and Communication Cheonan University

ISBN: (纸本)0769522971

This paper presents the design and implementation of the MAFTS(A Multi-Agent based Fault-Tolerance System), which is running on distributed multimedia object oriented environment. DOORAE(Distributed object oriented collaboRAtion Environment) is a good example of the foundation technology for a computer-based multimedia collaborative work that allows development of required application by combining many agents composed of units of functional module when user wishes to develop a new application field. MAFTS has been designed and implemented in DOORAE environment. It is a multi-agent system that is implemented with object oriented concept. The main idea is to detect an error by using polling method. This system detects an error by polling periodically processes with relation to sessions. And, it is to classify the type of errors automatically by using learning rules. The characteristic of this system is to use the same method to get back again it as it creates a session. © 2005 IEEE.

关键词： Fault tolerant computer systems

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design of an object-oriented workflow management system with reusable and fine-grained components

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11th International Workshop on Groupware: design, implementation, and use, CRIWG 2005

作者： Hwang, Gwan-Hwan Lee, Yung-Chuan Chang, Sheng-Ho Department of Information and Computer Education National Taiwan Normal University Taipei Taiwan System Development and Technical Support Department Trade-Van Information Service Company Taipei Taiwan

ISBN: (纸本)3540291105

Languages that support object-oriented programming are now mainstream, and can support software reuse. This study focused on the reusability of components for workflow management systems (WfMSs). Implementing a WfMS in object-oriented programming languages without considering the characteristics of the WfMS does not ensure that all the components will be reusable. We first clarify the reusability of WfMSs and point out the difficulties in constructing reusable components for WfMSs. We then propose an object-oriented model for WfMSs named the "Java-based object-oriented WfMS" (JOO-WfMS), whose components are fine-grained and are classified into a functional stack with three layers. This extends the reusability of objects in developing workflow applications. The resulting architecture can support real-time flow control as well as the dynamic instantiation of objects. Two mechanisms are embedded into the JOO-WfMS to increase the reusability of its components: (1) a workflow failure-handling language, which can increase the reusability of activities when flexible failure recovery is necessary;and (2) the user communication components and their corresponding architecture. The goal of the architecture is to increase the reusability of codes used for communication between the user and the activities in WfMSs. © Springer-Verlag Berlin Heidelberg 2005.

关键词： object oriented programming

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A framework for preparing experimental evaluation of rerouting mechanisms

A framework for preparing experimental evaluation of rerouti...

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10th IEEE International Workshop on object-oriented Real-Time Dependable systems, WORDS 2005

作者： Correia, Reinaldo De B. Carmo, Luiz F. Rust Pirmez, Luci Bacellar, Luiz F.H. Núcleo de Computação Eletrónica Universidade Federal do Rio de Janeiro P.O.Box 2324 20001-970 Rio de Janeiro - RJ Brazil United Technologies Research Center M/S 129-48 411 Silver Lane East Hartford CT 06108 United States

ISBN: (纸本)0769523471

Among the various QoS schemes that have already been proposed, rerouting critical flows is the most promising for its inherent ability to interface easily with management systems. To enhance the responsiveness, the operations performed by rerouting mechanisms should be done pro-actively, A pro-active network management using rerouting mechanisms was proposed in [1]. Recently, the proposed approach was selected to be deployed in an experimental fiber-optic gigabit backbone (GIGA project - sponsored by the Brazilian Research Network - RNP). The fundamental problem is how to specify critical factors and to develop a consistent set of tests for a complete field evaluation of the implementation. The constraints associated with this process are reduced deployment time and restricted availability of the network infrastructure for testing. This paper discusses a framework for deploying the rerouting mechanisms proposed in [1] using DOE (design of experiments) analysis [11]. It is shown how rapidly some conclusions about performance, stability and interdependence upon the selection of design parameters can be taken through the use of DOE. Basically, MatLab models have been used to support the DOE analysis. This paper shows how the use of simple two and three-level factorial experimental designs can rapidly increase the designer's knowledge about the behavior of the mechanisms being studied. © 2005 IEEE.

关键词： object oriented programming

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Crosscutting techniques in program specification and analysis 05

Crosscutting techniques in program specification and analysi...

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AOSD 2005: 4th International Conference on Aspect-oriented Software Development

作者： Lam, Patrick Kupcak, Viktor Rinard, Martin Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology Cambridge MA 02139 United States

ISBN: (纸本)1595930434

We present three aspect-oriented constructs (formats, scopes, and defaults) that, in combination with a specification language based on abstract sets of objects, enable the modular application of multiple arbitrarily precise (and therefore arbitrarily unscalable) analyses to scalably verify data structure consistency properties in sizable programs. Formats use a form of field introduction to group together the declarations of all of the fields that together comprise a given data structure. Scopes and defaults enable the developer to state certain data structure consistency properties once in a single specification construct that cuts across the preconditions and postconditions of the procedures in the system. Standard approaches, in contrast, scatter and duplicate such properties across the preconditions and postconditions. We have implemented a prototype implementation, specification, analysis, and verification system based on these constructs and used this system to successfully verify a range of data structure consistency properties in several programs. Most previous research in the field of aspect-oriented programming has focused on the use of aspect-oriented concepts in design and implementation. Our experience indicates that aspect-oriented concepts can also be extremely useful for specification, analysis, and verification. Copyright 2005 ACM.

关键词： object oriented programming

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Micro patterns in Java code

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ACM SIGPLAN NOTICES 2005年第10期40卷 97-116页

作者： Gil, J Maman, I Technion Israel Inst Technol Dept Comp Sci IL-32000 Haifa Israel

Micro patterns are similar to design patterns, except that micro patterns stand at a lower. closer to the implementation, level of abstraction. Micro patterns are also unique in that they are mechanically recognizable, since each such pattern can be expressed as a formal condition on the structure of a class. This paper presents a catalog of 27 micro-patterns defined on JAVA classes and interfaces. The catalog captures a wide spectrum of common programming practices, including a particular and (intentionally restricted) use of inheritance, immutability I data management and wrapping, restricted creation, and emulation of procedural-, modular-, and even functional- programming paradigms with object oriented constructs. Together, the patterns present a set of prototypes after which a large portion Of all JAVA classes and interfaces are modeled. We provide empirical indication that this portion is as high as 75%. A statistical analysis of occurrences of micro patterns in a large software corpus, spanning some 70,000 JAVA classes drawn from a rich set of application domains, shows, with high confidence level that the use of these patterns is not random. These results indicate consciousness and discernible design decisions, which are sustained in the software evolution. With high confidence level, we can also show that the use of these patterns is tied to the specification, or the purpose, that the software realizes. The traceability, abundance and the statistical significance of micro pattern occurrence raise the hope of using the classification of software into these patterns for a more founded appreciation of its design and code quality.

关键词： design object-oriented programming program analysis design patterns implementation patterns

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object-oriented FRAMEWORK FOR THE design OF HOME/BUILDING AUTOMATION systems

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IFAC Proceedings Volumes 2005年第1期38卷 169-174页

作者： Jair J. Araujo Carlos E. Pereira Informatics Institute UFRGS / Federal Center of Technological Education of Pelotas Robotics Automation and Control Group Electric Engineer Department UFRGS

关键词： building automation home automation object-oriented framework

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implementation of the "embedded object" concept and an example of using it with UML

Implementation of the "embedded object" concept and an examp...

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IEEE International Symposium on Computational Intelligence in Robotics and Automation (CIRA)

作者： T. Vallius J. Roning Computer Engineering Laboratory University of Oulu Oulu Finland

Traditionally, embedded system design process demands a considerable amount of expertise, time and money. This hinders the testing of new research results in robotics with real embedded systems, which would be required in order to bring the research results into real use. We have earlier presented an easy and fast embedded system development concept based on embedded objects. Embedded object concept utilizes common object oriented methods used in software by applying them into combined Lego-like software and hardware entities. This concept enables people without comprehensive knowledge in electronics or embedded systems design to create new embedded systems. In this paper, we present an implementation of the embedded object concept as Atomi-objects, and we show how these objects can be mapped to UML, a notation commonly used in object oriented software development, through an example of creating a simple cleaning robot. The significance of this paper is to present the presuppositions for the embedded object concept to be used with object oriented design methods.

关键词： Unified modeling language Embedded system Robots Embedded software Process design System testing object oriented methods Hardware Programming Cleaning

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