文章基本信息

标题：VERIFICATION OF VERTICAL TIME LAG IN AN E-GOVERNMENT SYSTEM BY USING A CASUAL MODEL: KOREA WORKNET SYSTEM CASE
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作者：Dae Chul Lee ; Gyoo Gun Lim ; Mi Hwa Lim 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2016
卷号：86
期号：3
出版社：Journal of Theoretical and Applied
摘要：Many organizations and governments have been investing various types of innovative information systems. Sometimes it takes time to see the performance of such investments due to the time lags. The time lags of information systems investment can be seen from vertical and horizontal viewpoints. The vertical means the time lag among the performance layers; input, process and output and the horizontal means the time lag in a specific layer. In this study we show the existence of time lags between the layers by using causality relation model for the WORKNET system of Korea. For this study we made indicators for each layers and tested the causality among indicators in different layers. From this study we showed the existence of the time lag between performance layers.
关键词：Time-lag effect; Performance evaluation; IT performance; Performance model; vertical time lag