The role of goal awareness and information technology self-efficacy on job satisfaction of healthcare system users

This paper investigates the influence of goal awareness and IT self-efficacy on job satisfaction based on the motivation sequence model, goal-setting theory, and social cognitive theory. Using a large-scale field survey of healthcare enterprise resource planning (ERP) system users (n?=?352), this study investigates these relationships and provides important insight to healthcare ERP system researchers and managers. Both goal awareness and IT self-efficacy influence positive job satisfaction of healthcare ERP system users, as expected. Furthermore, the influence of goal awareness is stronger when the role of ERP systems is highly perceived for decision-making of the job. There was no interaction effect between goal awareness and IT self-efficacy in the post hoc analysis. The model is significantly supported by the empirical test with the large number of field data from healthcare ERP system users in the healthcare company. Practical and academic implications are discussed in the paper.     

Behavioral Analysis of E-commerce Acceptance in Micro-enterprises简

E-commerce present opportunities and challenges for businesses, especially for micro-enterprises. This paper proposed a theoretical framework that in line with the unique characteristics of E-commerce acceptance in micro-enterprises in Chengdu, which is based on the unified theory of acceptance and use of technology （UTAUT） model. The extending UTAUT model includes key constructs of performance expectation, perceived behavioral control and the characteristics of owner-managers.     

Enhancing the semantics of UML association redefinition

Association redefinition is a UML construct that permits us to define an association end more specifically in a particular context. Concretely, it allows specifying some additional participation and cardinality constraints on the association. Association refinements, which have been studied and used by many authors in conceptual modelling languages prior to UML, are closely related to association redefinitions. They also permit to refine the ends of an association adding participation and cardinality constraints. In this paper, we analyze and compare the semantics of both concepts and propose to extend the semantics of association redefinitions in UML to cover all the constraints that may be expressed by association refinements in other conceptual modelling languages. Additionally, we present how to integrate previous results on validation of association refinements to UML and how to generate code for a relational technology platform. Finally, we provide a prototype tool to verify the feasibility of the approach.     

一种基于码本聚类的低复杂度用户选择算法

现有块对角化(BD)预编码系统用户选择算法较少考虑利用已选用户与剩余用户之间的关系来排除不可选用户.针对这点不足,给出了一种采用码本聚类的低复杂度用户选择算法( CodeGreedy算法).该算法采用弦距离刻画用户信道的相关性,以此为依据将用户划分到不同码本空间中,聚集在同一码本空间的用户信道具有较强的相关性,形成互斥...     

Analytical benchmarks for topological optimization IV: square-shaped line support

Michell’s problem of optimizing truss topology for stress or compliance constraints under a single load condition is solved analytically for plane trusses having a square-shaped line support. Geometrical characteristics of the Hencky nets giving the truss layout are expressed in terms of Lommel functions. Analytically derived truss volumes for the above problem are compared with those of trusses supported along circles of equivalent area. Some general implications of the results are also discussed.     

一类带时间约束的多工件排序优化

研究了多个工件在多台机床上顺序加工,满足不同工件时间约束下总体加工时间最短的排序问题。建立了该问题的0-1整数优化模型,编写了基于LINGO软件的求解方程,算例表明了该模型的有效性。     

带有时限的多点应急系统库存策略优化研究

主要研究有时限约束的应急供应系统的库存服务水平问题。考虑随机需求下的包含一个中央供应点和多个不同地方供应点的二级系统,当缺货发生时,基于就近原则的转运模式建立了有时限约束的地方供应点库存策略优化模型,在此基础上分析了随机转运和不转运两种模式对模型的影响,最后采用粒子群算法对模型进行求解和分析。结果表明:在有时限约束时,就近原则模式下的库存策略具有较高的服务水平,并且时限约束越紧,其优势越显著。     

用PowerBuilder实现标签页式应用程序界面

标签页式用户界面简洁、清晰，适用于从小型到大型的各类数据库应用程序。本介绍一种基于PowerBuilder和PFC的标签页式界面的实现方法。     

PowerBuilder中的用户事件及其应用

PowerBuilder为窗口、用户对象等提供了大量的预定义系统事件，但应用程序有时为了某种特殊要求需要使用用户自定义的用户事件。就此介绍了PowerBuilder中用户事件的定义、触发及其应用实例。     

一种动态个人最优交通分配的启发式方法

给出了一种基于动态最短路的动态个人最优交通分配的启发式方法．同时提出了与动态个人最优交通分配相关的一些定义。