Managing and Coping with Change: An IS Challenge

In light of the current acceleration of change — in regulatory actions, competition, technology, and expectations mdash; and its potential impact on IS careers, the challenge of addressing change must be met. The opportunities that result can be significant.     

Coping With Change At The Top

Eight guidelines help IS professionals maintain their focus and employability amid the chaos and stress accompanying rapid turnover among top IS management.     

The Spiral of Change Model for Coping with Changing and Ongoing Requirements

This paper is a discussion on the problem of establishing information requirements in changing and ongoing business organisations. Attempts within existing software development paradigms to cope with business change are identified and discussed, and their problems concerning business change are highlighted. The alternative spiral of change model of tailorable information systems is proposed for thinking about establishing changing and ongoing information systems requirements. It is also proposed that information should be reconceptualised as tailorable. Such a reconceptualisation would allow us to explore ways of establishing information systems requirements that cope with business change. Deferred system’s design is proposed as a form of business software design and development that can cope with business change, as well as with the contextual and situational nature of tailorable information.     

Modelling Product Innovation Processes,from Linear Logic to Circular Chaos

Product innovation is the focal point of the Delft Design School in the Netherlands. During its more than thirty years of existence different models of the product innovation process were and are used for education and for research. This paper will describe the development of these models. The first models tried to describe the product innovation process in a logical linear order, but recently this logical order has come under discussion. The most recent models try to show the more chaotic character of the product innovation processes in real corporate life. Although this chaotic model better reflects the product innovation practice, for educational purposes it seems to be less useful than the original logical ones. For our teaching we propose the two versions (logic and chaos) of our innovation model as two sides of one coin. This innovation coin is without proper value with one side left blank.     

超混沌序列密码受参数变化影响的实验研究

近年来,利用混沌特性进行数据加密得到了较多的研究,超混沌映射参数的不同取值直接影响超混沌映射所产生序列密码的复杂性.以广义Henon映射作为实验对象, 以MATLAB7.0为实验平台,分析映射初值及参数在什么范围内取值可以产生可实际应用的超混沌序列及其随机特性、自相关特性、互相关特性、平衡性及游程的变化,为工程实际应用时选择参数提供参考.     

Coping with Catastrophe

Coping with Catastrophe: Building an Emergency Management System to Meet People's Needs in Natural and Manmade Disasters, National Academy of Public Administration, Washington DC (1993), 133 pp.     

吸引子键波在弱信号检测中的应用研究

分析了Duffing方程的基本形式,阐述了基于混沌信号相平面变化进行弱信号检测的工作原理,分析了蔡氏电路中混沌吸引子的键波及螺旋表示方法,设计了一个基于Chua电路键波同步系统;通过实验给出了混沌键波同步系统在在弱信号检测的应用,解决了目前利用混沌检测弱信号中存在的两个关键问题,为混沌键波同步系统在弱信号中的实际应用奠定了一定的基础。     

Coping with Uncertainty in Map Learning

In many applications in mobile robotics, it is important for a robot to explore its environment in order to construct a representation of space useful for guiding movement. We refer to such a representation as a map, and the process of constructing a map from a set of measurements as map learning. In this paper, we develop a framework for describing map-learning problems in which the measurements taken by the robot are subject to known errors. We investigate approaches to learning maps under such conditions based on Valiant's probably approximately correct learning model. We focus on the problem of coping with accumulated error in combining local measurements to make global inferences. In one approach, the effects of accumulated error are eliminated by the use of local sensing methods that never mislead but occasionally fail to produce an answer. In another approach, the effects of accumulated error are reduced to acceptable levels by repeated exploration of the area to be learned. We also suggest some insights into why certain existing techniques for map learning perform as well as they do. The learning problems explored in this paper are quite different from most of the classification and boolean-function learning problems appearing in the literature. The methods described, while specific to map learning, suggest directions to take in tackling other learning problems.     

吸引子键波与混沌系统同步关系的研究

本文介绍了一种改进型Chua电路及其特性；分析了蔡氏电路中混沌吸引子的键波及螺旋表示方法；设计了一个基于Chua电路键波同步系统；通过实验给出了混沌系统同步与混沌吸引子键波之间的关系，为混沌同步系统在保密通信的实际应用奠定了一定的基础。     

Coping with latency in SOC design

Latency-insensitive design is the foundation of a correct-by-construction methodology for SOC design. This approach can handle latency's increasing impact on deep-submicron technologies and facilitate the reuse of intellectual-property cores for building complex systems on chips, reducing the number of costly iterations in the design process     

Coping with legacy factors

Implementers of engineering data base management systems inherit a legacy of existing software and data that must be integrated into the new system with minimum disruption of ongoing activities. Some critical issues addressed here include changes in software engineering practices, impact on user training and procedures, and problems connected with traditional or parochial interests. The material covered describes some experiences in coping with these legacy factors during the recent McDonnell Aircraft Company (MCAIR) integrated data base implementation.     

Coping with career breaks

In these tough economic times, how can women cope with a careerbreak? Jan Peters, manager of the BCS Women's Forum, discusses.     

Coping with Java threads

A thread is a basic unit of program execution that can share a single address space with other threads - that is, they can read and write the same variables and data structures. Originally, only assembly programmers used threads. A few older programming languages such as PL/I supported thread concurrency, but newer languages such as C and C++ use libraries instead. Only recently have programming languages again begun to build in direct support for threads. Java and Ada are examples of industry-strength languages for multithreading. The Java thread model has its roots in traditional concurrent programming. As the "real-time specification for Java" sidebar describes, RTSJ attempts to remove some of the limitations relative to real-time applications - primarily by circumventing garbage collection. But RTSJ does not make the language safer. It retains standard Java's threading pitfalls and is a risky candidate for critical concurrent applications.     

Java与混沌加密

本文利用Ｊａｖａ语言的平台无关特性和混沌加密技术的动态性和多样性,在开放的Ｗｅｂ网络环境中构造一个动态同步的浏览器／服务器混沌加密应用模型。     

Coping with conflict in cooperative knowledge-based systems

In this paper, we address a critical issue of cooperative problem solving: the existence of conflict among distributed agents. In particular, we focus our study on cooperative knowledge-based systems. To obtain a better understanding and more balanced judgement of multiagent conflict, we provide a general scheme to study the logical structure of multiagent conflict and rational strategies of coping with it under different situations. Our research finding is that there is no grand unified theory of coping with conflict in performing complex real-world computer supported tasks. Instead, a library of alternative methods should be considered. We discuss four methods: inquiry, arbitration, persuasion, and accommodation. These methods can be combined in an order appropriate to the application domain such that if one method fails, the system will try the next. We point out merits and shortcomings of these methods and illustrate them using several high-level protocols and application examples from a prototype system, the Building Design Network     

Coping with uncertainty in a location-based game

With location-based games, how you manage uncertainty can make the difference between fun and fiasco. Game designers should know what uncertainties to hide and what to reveal to create an engaging experience. This article describes our experiences, focusing on uncertainty, in publicly deploying an experimental, mobile mixed-reality game called Can You See Me Now?.     

Coping with defective software in medical devices

Embedding defective software in medical devices increases safety risks. Given that all software is inherently defective, how can medical device manufacturers identify and manage risk? An effective, tailored risk management process can make the task less daunting. Developing complex, software-based medical devices is a challenging business. Device manufacturers must understand the inherent differences between hardware and software components and establish robust software development processes that are based on recognized engineering principles appropriate for safety-critical systems. At the heart of such processes, they must incorporate risk management - from early development through product retirement. Manufacturers have a responsibility to train development and risk management teams in the use of recognized software engineering practice that promote software safety. Only then can they minimize the risk of including inherently defective software in their products.     

Coping with errors in binary search procedures

We consider the problem of identifying an unknown value x ? {1, 2,…, n} using only comparisons of x to constants when as many as E of the comparisons may receive erroneous answers. For a continuous analogue of this problem we show that there is a unique strategy that is optimal in the worst case. This strategy for the continuous problem is then shown to yield a strategy for the original discrete problem that uses log₂n + E · log₂log₂n + O(E · log₂E) comparisons in the worst case. This number is shown to be optimal even if arbitrary “Yes-No” questions are allowed.We show that a modified version of this search problem with errors is equivalent to the problem of finding the minimal root of a set of increasing functions. The modified version is then also shown to be of complexity log₂n + E · log₂log₂n + O(E · log₂E).