The representation scheme for models is a key issue in decision support system(DSS). First,various representation scheme for models is outlined. Second, a new method of representation for models, which is based on aut...
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ISBN:
(纸本)0780342534
The representation scheme for models is a key issue in decision support system(DSS). First,various representation scheme for models is outlined. Second, a new method of representation for models, which is based on automata, is presented. Third, a object-oriented model management system has been realized.
This paper gives an overview of the technical direction of Java in terms of the security architecture and desirable features. It also highlights some of the feasibility constraints on the security solutions. This pape...
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ISBN:
(纸本)0818678054
This paper gives an overview of the technical direction of Java in terms of the security architecture and desirable features. It also highlights some of the feasibility constraints on the security solutions. This paper assumes that the reader has prior knowledge of Java basics and general security issues. This document is a purely technical discussion for the wider Java community, and does not necessarily commit JavaSoft to any particular features or implementations.
The integration of the non-traditional database systems, such as object-oriented database, multimedia database and file system, makes the information integration technique face with the new challenge. This paper propo...
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ISBN:
(纸本)0780342534
The integration of the non-traditional database systems, such as object-oriented database, multimedia database and file system, makes the information integration technique face with the new challenge. This paper proposes an object-wrapping technique to the development of integrated system. This object-wrapping technique efficiently makes use of the object-oriented technology to support the schema integration mechanism, in particular to be capable of integrating the file system in which the schema doesn't exist. The feasibility of this technique is demonstrated by the development of the prototype system CIM-IDS. This paper will introduce the object-wrapping technique in CIM-IDS and the design of its core part-object wrapper in detail.
The application of knowledge-based system in process control is now growing apparently, especially in the control of complicated systems. In this paper, a rule-based cement kin control system using neural networks is ...
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ISBN:
(纸本)0780342534
The application of knowledge-based system in process control is now growing apparently, especially in the control of complicated systems. In this paper, a rule-based cement kin control system using neural networks is presented. A description method of the control rules for cement kiln is first introduced. Then, an implementation scheme making use of the object-oriented programming is discussed. Based on this method, the hardware and software architecture of the cement kiln control system are presented. The system presents a combination of traditional PID control and the knowledge-based supervisory control, and has been successfully used for the control of several cement kilns.
OMT(object Modeling Technique) is an informal software developing tool. The feature of the informal method is that it describes a system adopting natural language and intuition graphics. In order to increase the tight...
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ISBN:
(纸本)0780342534
OMT(object Modeling Technique) is an informal software developing tool. The feature of the informal method is that it describes a system adopting natural language and intuition graphics. In order to increase the tightness and decrease the ambigity,this paper presents formalizing OMT. Moreover,this paper discusses an automatic translating developing tool from a formal OMT to a C++ program. It may be used to shorten translating period and avoid programming mistakes in manual implementation.
Current Interest in improving the quality and productivity of software manufacture has led to a recent focus on software process modeling. It is commonly accepted by the process modeling community that the benefits of...
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ISBN:
(纸本)0780342534
Current Interest in improving the quality and productivity of software manufacture has led to a recent focus on software process modeling. It is commonly accepted by the process modeling community that the benefits of process models will be easier to be realized by using the multi-paradigm software process modeling methods. In this paper, we describe a integration framework for multiparadigm software process modeling. It provides a flexible and open architecture for multi-paradigm process representation integrating.
Considering objectoriented technique, this paper analyses a communication system from three faces. A system framework of communication software is raised. Some shortcomings of graphic system framework are pointed out...
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ISBN:
(纸本)0780342534
Considering objectoriented technique, this paper analyses a communication system from three faces. A system framework of communication software is raised. Some shortcomings of graphic system framework are pointed out. A formal system framework of communication software is given. This framework makes up for the space in OMT research. It provides an efficient tool in communication software developments. Moreover, the anal! sis and implementation tools of communication systems are developed. This tool not only has realized the framework, but also has provided a precise and rapid method to develop communication software.
In the conventional object model, encapsulated objects interact by messages that result in method invocations on the destination object. A message is delivered directly at the destination object. As a result of the di...
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In the conventional object model, encapsulated objects interact by messages that result in method invocations on the destination object. A message is delivered directly at the destination object. As a result of the direct deliveries, the message control code performing intermediate message manipulations cannot be abstracted out separately from the message processing code in the destination object without sacrificing the transparency of the intermediate message control. We propose the filtered delivery model of message passing for object-oriented languages to provide the separation of message control from message processing in a transparent manner. An interclass relationship, called a filter relationship, is introduced. As a consequence, a filter object can intercept and manipulate messages sent to another object called its client,ia filter member functions. A filter member function in a filter object can intercept a particular member function invocation on its client object. The filtered delivery model supports both upward and downward filtering mechanisms, facilitating interception of an upward message and its return message value. Filter objects can be plugged or unplugged at runtime. Binding of filter member functions to corresponding member functions in the client is selective and dynamic. The filtered delivery model is developed for the C++ object-oriented language;its applications are described and implementation is discussed. (C) 1997 by John Wiley & Sons, Ltd.
Inheritance together with virtual functions in C++ provides programmers much polymorphism, an important facility of object-oriented design and programming. However, they can hardly be applied to enrich a family of cla...
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Inheritance together with virtual functions in C++ provides programmers much polymorphism, an important facility of object-oriented design and programming. However, they can hardly be applied to enrich a family of classes(including the base classes and their derived classes) with some common features. Multiple inheritance and virtual base classes are usually hired to solve such a problem, or templates can also be employed for the same purpose. Unfortunately, these approaches are unnatural and costly. Moreover, virtual base classes deflect from the concept of dynamic binding behind virtual functions and therefore complicate the incomplete virtuality in C++. In this paper, we demonstrate that truly virtual base classes can be utilized to solve the problem effectively and efficiently, and can be used to express explicitly what virtual base classes do implicitly in a more flexible and lucid way. In addition, they along with virtual data members can provide further polymorphism and a type-safe and efficient alternative to constrained genericity and multiple inheritance in some cases, and hence facilitate the design and implementation of extensible and portable software, especially libraries of classes.
The high-carbon ferromanganese furnace is a semi-continuous unit process, with a number of complex, and partly unknown mechanisms taking place inside it. The furnace operation has been characterized by fluctuations in...
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The high-carbon ferromanganese furnace is a semi-continuous unit process, with a number of complex, and partly unknown mechanisms taking place inside it. The furnace operation has been characterized by fluctuations in vital process variables. Many of the operational problems are caused by the lack of information about the internal conditions. This paper presents an object-oriented model of the furnace and its future application in monitoring the furnace conditions. The object-orientation ensures that the model becomes easy to modify as new process knowledge is collected.
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