Software Engineering for User Interfaces

The discipline of software engineering can be extended in a natural way to deal with the issues raised by a systematic approach to the design of human-machine interfaces. Two main points are made: that the user should be treated as part of the system being designed, and that projects should be organized to take account of the current (small) state of a priori knowledge about how to design interfaces.     

富因特网应用程序在Web数据展现中的应用

根据传统的web数据展现技术在数据展现灵活性和交互性等方面的不足以及对新的Web数据展现应用的需求,提出了将富因特网应用程序(RIA)应用于Web数据展现的思路.结合一个在线曲线统计图的实际例子探讨了如何在MS.NET架构下使用微软下一代展现层技术Silverlight来实现具有丰富的交互、强大的展现层逻辑和良好用户体验的Web数据展现功能.     

富互联网应用程序研究初探

对现今流行的富互联网应用(RIA)进行了研究,介绍了RIA的概念、RIA产生的背景、RIA的特点以及所能解决的问题。列出了现有的主流RIA实现技术并分析了各自的特点。介绍了RIA的应用现状并对RIA的发展与应用提出了个人见解。     

Matlab的图形用户界面的应用

Matlab是面向科学与工程计算的科技应用软件,本文通过在GUI中设计一个具有可视化交互界面的实例来讨论GUI的应用。     

Matlab的图形用户界面的应用

Matlab是面向科学与工程计算的科技应用软件，本文通过在GUI中设计一个具有可视化交互界面的实例来讨论GUI的应用。     

Innovative User Interfaces in Automation Engineering by Application of Usability Engineering Methods Shown by the Example of a Three-Dimensional Plant Representation

This article is the first of 3 that focus on user-centered design and usability in the field of industrial process control. This article starts with an introduction to this special domain and sets out the need for user-centered design of innovative user interfaces. The MediaPlant research project is then introduced. This project aims to generate innovative user interface solutions for process control. The usability engineering methods presented are well known in relation to office application software and were applied in the course of the project to (a) evaluate the potential and application fields of innovative multimedia technology and 3-dimensional information presentation (described at the end of this article), (b) define innovative user interface building blocks for process control that can be applied across sectors (described in the second article, Komischke & Burmester [this issue]) and (c) develop human-centered user interfaces for controlling paper recycling plants (described in the third article, Epstein & Beu [this issue]).     

User Models and Filtering Agents for Improved Internet Information Retrieval

Over the past few years, the amount of electronic information available through the Internet has increased dramatically. Unfortunately, the search tools currently available for retrieving and filtering information in this space are not effective in balancing relevance and comprehensiveness. This paper analyzes the results of experiments in which HTML documents are searched with user models and software agents used as intermediaries to the search. Simple user models are first combined with search specifications (or ‘User Needs’), to define an Enhanced User Need. Then Uniform Resource Agents are constructed to filter information based on the EUN parameters. The results of searches using different agents are then compared to those obtained through a comparable simple keyword search, and it is shown that a user searching a pool of existing agents can obtain better search results than by conducting a traditional keyword search. This work thus demonstrates that the use of user models and information filtering agents do improve search results and may be used to improve Internet information retrieval. This revised version was published online in July 2006 with corrections to the Cover Date.     

用户界面逆向工程静态方法和动态方法的分析对比

简介当前应用程序用户界面逆向T程的研究现状,对静态和动态两大类方法给予简单的说明和解释。分别用两种方法对简单系统进行界面信息提取实验．并比较提取信息的准确性和完备性。实验结果表明,动态方法更能准确地提取界面的信息。探讨用户界面逆向工程未来研究工作的重点和方向。     

基于XUL开发富客户端应用程序

首先本文介绍了开发富客户端应用程序的RIA技术,然后对当前一种可用的RIA技术—XUL的各方面特性以及由它实现富客户端的途径做了深入探讨,最后通过一个项目实例-订单管理系统演示了基于XUL开发富客户端应用程序的一种实现。     

富互联网应用中框架技术实现Web信息系统

通过对Rich Infernet Applications(RIA)及Flex的分析说明了它们的技术优势。研究如何使用Flex技术、Web- Services技术、Spring和Hibernate框架技术开发Web信息系统。系统架构的分层实现使得各层独立变化和很好的复用。软件复用是提高软件开发效率的有效方法之一。重点分析了分层设计的重要作用和实现方法。     

A Framework for Evaluating Distributed Object Models and its Application to Web Engineering

The success of building distributed object systems depends on important factors such as architecture, the distributed object model (DOM) selected, and the process adapted in the selection of the DOM. There are a number of DOMs. Although the primary goals of these models are the same, each model has a unique underlying architecture, maturity, and features provided. A critical evaluation of DOMs is thus needed by those organizations that are considering migrating to distributed object computing. The evaluation process can be time-consuming and may drain organizational resources. Most of the current evaluation processes adopted by organizations are not generic enough, and they concentrate only on the problem on hand. Hence, they cannot be used by any other organization, sometimes not even a different project at the same organization. Therefore, a more generalized framework or template is required to evaluate DOMs. This paper proposes a framework to evaluate DOMs. A number of important managerial items such as cost, personnel, and technology resources, training, enterprise changes, and time constraints have been identified, explained, and justified as the evaluation criteria. An evaluation of the most widely used DOMs, CORBA, DCOM, and RMI, is provided using the above criteria. Finally, a case study of a production web-based system is presented to demonstrate the use of the framework.     

Evaluating Variable-Length Markov Chain Models for Analysis of User Web Navigation Sessions

Markov models have been widely used to represent and analyze user Web navigation data. In previous work, we have proposed a method to dynamically extend the order of a Markov chain model and a complimentary method for assessing the predictive power of such a variable-length Markov chain. Herein, we review these two methods and propose a novel method for measuring the ability of a variable-length Markov model to summarize user Web navigation sessions up to a given length. Although the summarization ability of a model is important to enable the identification of user navigation patterns, the ability to make predictions is important in order to foresee the next link choice of a user after following a given trail so as, for example, to personalize a Web site. We present an extensive experimental evaluation providing strong evidence that prediction accuracy increases linearly with summarization ability     

Secure Web Transaction with Anonymous Mobile Agent over Internet

A major problem of mobile agents is their apparent inability to authenticate transactions in hostile environments. In this paper, a new secure anonymous mobile agent scheme is proposed for the prevention of agent tempering without compromising the mobility or autonomy of the agent. In the scheme, a mobile agent can produce valid signature on website's bid (it means to transact a contact with the web site) on behalf of its customer, without revealing the customer's real private key. In addition, the anonymity of the customer is also achieved when its agent transacts with the websites. Furthermore, the customer who issues a malicious agent or denies the transaction can be identified and detected by Agent Management Center (AMC). Therefore, the scheme is practical in the future electronic commerce over Internet.     

一种高效安全的富客户端传输框架

富客户端技术的复杂性以及大量XML文档传输使效率和安全性问题成为其发展瓶颈。该文对传统富客户端的异步XML-RPC传输模式进行改进,并结合压缩和加密XML方法,构建出新的富客户端传输框架,提高了信息传输的效率和安全性,同时具有良好的扩 展性。     

互联网应用发展和用户行为解析

互联网在我国迅猛发展,其应用不断创新发展。本文从搜索引擎、社交网站、电子商务、网络视频、网络游戏、移动互联网6个方面对互联网应用发展现状以及各种用户的行为习惯进行研究．最后分析了各种互联网应用的发展趋势。     

User Interface Reverse Engineering in Support of Interface Migration to the Web

Legacy systems constitute valuable assets to the organizations that own them, and today, there is an increased demand to make them accessible through the World Wide Web to support e-commerce activities. As a result, the problem of legacy-interface migration is becoming very important. In the context of the CELLEST project, we have developed a new process for migrating legacy user interfaces to web-accessible platforms. Instead of analyzing the application code to extract a model of its structure, the CELLEST process analyzes traces of the system-user interaction to model the behavior of the application's user interface. The produced state-transition model specifies the unique legacy-interface screens (as states) and the possible commands leading from one screen to another (as transitions between the states). The interface screens are identified as clusters of similar-in-appearance snapshots in the recorded trace. Next, the syntax of each transition command is extracted as the pattern shared by all the transition instances found in the trace. This user-interface model is used as the basis for constructing models of the tasks performed by the legacy-application users; these task models are subsequently used to develop new web-accessible interface front ends for executing these tasks. In this paper, we discuss the CELLEST method for reverse engineering a state-transition model of the legacy interface, we illustrate it with examples, we discuss the results of our experimentation with it, and we discuss how this model can be used to support the development of new interface front ends.     

Object-Oriented Design Structures in Web Application Models

In this paper, we discuss different object-oriented design structures that should be used in the process of building Web applications. We base our discussion on the OOHDM approach for defining a Web application model, in particular, the separation of the navigational model from the conceptual model. We focus on the systematic application of different design patterns (such as Observer and Decorator) for decoupling different aspects of a Web model. We briefly discuss some specific patterns that may appear in this kind of applications and we introduce additional concepts such as Web frameworks as a conceptual approach to maximize design reuse in Web applications.     

Web对象模型及在多层结构Web开发中的应用

讨论了多层结构Ｗｅｂ概念、特点,并从面向对象软件工程的角度分析多层结构Ｗｅｂ开发流程,进一步提出了Ｗｅｂ对象模型开发模式,并且分析它的特点以及它在多层结构Ｗｅｂ工程中的应用,最后,以实际应用开发加以例证和说明。