Application Systems Planning

The activities of the MIS organization can profoundly influence the effectiveness and efficiency of the user community. Through the development and use of an application systems plan, MIS management can improve user relations while effectively managing the backlog of new user requests. This is accomplished by providing the focus and direction necessary to solve the right problem in the right sequence with the right resources.     

Application Systems Planning

Abstract

The activities of the MIS organization can profoundly influence the effectiveness and efficiency of the user community. Through the development and use of an application systems plan, MIS management can improve user relations while effectively managing the backlog of new user requests. This is accomplished by providing the focus and direction necessary to solve the right problem in the right sequence with the right resources.     

Structured Systems Planning

A tremendous amount of effort can be wasted in developing a systems plan, especially if the effort is haphazard or if the desired output documents are not predetermined, This article discusses a systematic approach to systems planning and presents a case study of the development of a systems planning methodology.     

Structured Systems Planning

A tremendous amount of effort can be wasted in developing a systems plan, especially if the effort is haphazard or if the desired output documents are not predetermined, This article discusses a systematic approach to systems planning and presents a case study of the development of a systems planning methodology.     

An Architecture for Planning in Embedded Systems

This work is focused on an architecture for systems which act inside an unpredictable world (embedded systems). Several systems dealing with the above issue have been proposed so far. We classify them by means of their architectures and algorithms, obtaining, for example, classical, deferred and reactive planning. From the systems developed up to now, we can point out some of the features that embedded systems must have. Namely, each system must have a flexible architecture, so it can deal with different problems. Each system must allow different basic activities, i.e., actuators and sensors controlling, plan formation and execution, and so on. Each system must have a flexible failure handling mechanism , since no action is guaranteed to succeed. In this paper, we propose a system called MRG which addresses the above features. Its architecture has several modules which can be combined in different ways depending on the problem. A module performs a basic activity. The system is able to detect and to react to failures. The architecture allows MRG a parallel activation of modules and a quick reaction to external events. The control of the architecture is reached by means of a planning language which has a small set of powerful control structures. MRG has been experimented in a complex large-scale application.     

Systems Planning in Business-to-Business Electronic Commerce Environments

Past research demonstrates that inter-organisational systems' (IOS) planning lacks appropriate methodological guidelines, and it tends to be practised in an insular manner. To understand IOS planning better, this paper examines the planning and implementation undertaken in three business-to-business electronic commerce networks. Analysis reveals that systems planning processes are heavily influenced by the planning environments within which they take place. Based on these environments, recommendations for IOS planning guidelines are developed. These relate to the planning process, planning roles, the incorporation of business strategy, changes in organisational activity, as well as systems and technology planning.     

基于微创外科手术机器人操作手的夹持灵活度研究

为了反映外科手术机器人六自由度操作手的指尖在夹持点对物体的夹持能力,分析了夹持时指尖的姿态、夹持物的姿态及两者的关系．推导了指尖在夹持点对处于任意姿态的物体进行夹持时所需姿态的解析表达式,并借助姿态球给出了夹持灵活度的定义．研究了本机构工作空间中离散点的夹持灵活度,确定了指尖夹持的灵活空间,并通过SimMechanics进行了仿真验证．     

战略信息系统规划研究述评

随着信息技术的不断发展,战略信息系统规划（SISP）已成为企业界和学术界共同关注的主题。讨论了战略信息系统规划的含义,从战略匹配、SISP方法、SISP效益三个方面评述了战略信息系统规划的研究现状,分析了存在的问题并指出了今后的研究方向。     

Towards satisfying practitioners in using Planning Support Systems

Several Planning Support Systems (PSS) have been developed so far, but their uptake in planning practice remains low. The analysis of the literature shows that one major factors for the limited use of PSS is the mismatch between PSS functionality (as well as the way it is provided through the PSS user interface) and what planners expect. This motivated a deeper research with the objective to analyse the factors preventing a wider use of PSS. In particular, this paper focuses on the usability of PSS. It reports an evaluation study performed to investigate the usability of PSS for some specific tasks: planners were involved in testing the land suitability analysis module of three PSS. The study results confirmed the mismatch between what PSS provide and what planners expect, as well as indicated a poor usability of PSS. Indications for improving the design of PSS that satisfy needs and desires of practitioners are provided.     

The Changing Approach to Systems Planning

New technology and the search for competitive advantage form the new logic transforming systems planning and information technology management. Traditional planning approaches have been undermined, and business planners are discovering that they must reformulate their discipline to realize the competitive potential of the information age.     

Security for Enterprise Resource Planning Systems

Enterprise Resource Planning (ERP) is the technology that provides the unified business function to the organization by integrating the core processes. ERP now is experiencing the transformation that will make it highly integrated, more intelligent, more collaborative, web-enabled, and even wireless. The ERP system is becoming the system with high vulnerability and high confidentiality in which the security is critical for it to operate. Many ERP vendors have already integrated their security solution, which may work well internally; while in an open environment, we need new technical approaches to secure an ERP system. This paper introduces ERP technology from its evolution through architecture to its products. The security solution in ERP as well as directions for secure ERP systems is presented.     

医院资源规划系统与医院信息系统间的接口设计

随着医院信息化管理水平的提高,使用医院资源规划系统对医院日常运营进行管理的案例不断增加。医院资源规划系统与传统医院信息系统间接口的作用是在两个系统软件之间实现数据流动和共享,进行医院内部的流程再造,进而提高工作效率和管理水平。     

Clamping in Boltzmann machines

A certain assumption that appears in the proof of correctness of the standard Boltzmann machine learning procedure is investigated. The assumption, called the clamping assumption, concerns the behavior of a Boltzmann machine when some of its units are clamped to a fixed state. It is argued that the clamping assumption is essentially an assertion of the time reversibility of a certain Markov chain underlying the behavior of the Boltzmann machine. As such, the clamping assumption is generally false, though it is certainly true of the Boltzmann machines themselves. The author also considers how the concept of the Boltzmann machine may be generalized while retaining the validity of the clamping assumption.     

Planning of Identifying Input Signals in Linear Dynamic Systems

A method of planning of input signals is considered in a problem of identification of linear stationary continuous dynamic systems with scalar control. The class of admissible input signals accounts for constraints on the shape of a signal. In relatively simple cases, the method admits an analytical solution of the problem of planning of input signals. The possibilities of the method are illustrated by two informal examples of the applied significance. This article is an extension of studies of the author.     

Methods for Operations Planning in Airport Decision Support Systems

Simulation and decision support tools can help airport ground controllers to improve surface operations and safety, leading to enhancements in the process of traffic flow management. In this paper, two planning approaches for automatically finding the best routes and sequences for demanded operations are proposed and analyzed. These approaches are integrated into a general decision support system architecture. The problem addressed is the global management of departure operations, moving aircraft along airport taxiways between gate positions and runways. Two global optimization approaches have been developed together with a suitable problem representation: a modified time-space flow algorithm and a genetic algorithm, both aimed at minimizing the total ground delay. The capability and performance of these planning techniques have been illustrated on simulated samples of ground operations at Madrid Barajas International Airport.This work was funded by CICYT (TIC2002-04491-C02-02) and CAM (07T/0034/2003 1)     

Operations Research Techniques in Manufacturing Planning and Control Systems

This paper investigates the possible uses for operations research (OR) models and techniques in manufacturing planning and control (MPC) systems. We discuss various MPC problems where OR can be applied and the potential inclusion of such models in computer-aided MPC systems. It is found that even though the use of OR techniques in current standard MPC packages is rather restricted, there is a potential for utilizing more OR techniques in computer-aided MPC systems, at least in theory. In practice, OR-related techniques are more often developed as stand-alone systems for decision support as a complement to the MPC system. In this paper, specific OR techniques are discussed for specific MPC problems in terms of applicability and the appropriate type of software solution; none at all, stand-alone system or integrated part of the MPC system.     

The Three Domains of Information Systems Planning

As organizations move toward coordinating their information systems planning with overall corporate strategy, they will need a framework within which to consider related issues. Information systems planning techniques must not be embraced haphazardly; basing planning on the organization's priorities in three domains—efficiency, effectiveness, and competitiveness—may prove a key to success.     

Electric Distribution Systems Planning with Fuzzy Loads

Distribution systems planning heavily depends on the predicted future consumptions in the service area. When statistical data exist about past consumptions, probabilistic forecasting methods may be applied, and expected cost/benefit and risk analysis are used to decide between different solutions. In most cases, however, this strategy is not applicable, due mainly to the lack of significant data (new developing areas, rapidly changing situations) and uncertainty of economic and social factors. In the latter case, the use of fuzzy models is an interesting alternative, accommodating expert planner's qualitative judgments about future loads and allowing us to use ‘typical’ load diagrams in new areas. The paper discusses the main concepts of electric distribution system planning when loads are fuzzy modeled, and presents an illustrative application example.     

A Planning Framework for Systems Development Projects

As part of any systems development project, JS professionals must perform a variety of tasks. One such important task, estimating, is often done incorrectly and, as a result, can lead to errors in the final system or a cancellation of the project. To estimate projects accurately, data on previous project estimates should be readily available. This article describes a systems development planning framework that essentially creates an estimating knowledge data base, which enables IS managers to prepare better project plans.     

Proof Systems for Planning Under Cautious Semantics

Planning with incomplete knowledge becomes a very active research area since late 1990s. Many logical formalisms introduce sensing actions and conditional plans to address the problem. The action language $\mathcal{A}_{K}$ invented by Son and Baral is a well-known framework for this purpose. In this paper, we propose so-called cautious and weakly cautious semantics for $\mathcal{A}_{K}$ , in order to allow an agent to generate and execute reliable plans in safety-critical environments. Intuitively speaking, cautious and weakly cautious semantics enable the agent to know exactly what happens after the execution of an action. Computational complexity analysis shows that cautious semantics reduces the reasoning complexity of $\mathcal{A}_{K}$ , it is also worth to point out that many useful domains could still be expressed with this setting. Another important contribution of our work is the development of Hoare style proof systems. These proof systems are served as inference mechanisms for the verification of conditional plans, and proved to be sound and complete. In addition, they could also be used for plan generation, in the sense that constructing a derivation is indeed a procedure to finding a plan. We point out that the proof systems posses a nice property for off-line planning, that is, the agent could generate and store short proofs in her spare time, and perform quick plan query by easily constructing a long proof from the stored shorter ones (under the assumption that sufficient proofs are stored).