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信息技术(IT)在知识体系创建和决策管理中扮演着十分重要的角色，可视化工具在计算机应用中能够产生辅助决策的图形化表示。可视化工具用于建立决策支持系统(DSS)，就像一个简单的电子表格到复杂的计算机系统,如商业智能系统,企业资源管理和报告系统、知识管理系统、专家系统,以帮助决策者解决结构化、非结构化和半结构化问题。

在数字时代,决策者可以使用可视化分析软件访问大量的数字数据,以支持决策的实施。良好的结构化问题有清晰的解决路径，能够很好地解决不良结构问题,利用数据的外部特征和问题可以不费吹灰之力就完成一个精确的解决方案[3]。

谷歌首席经济学家预测,在未来几年，对数据可视化的需求将会得到迅速增长。他写道，“采撷数据的能力——能够理解它,处理它,从中提取价值,使其更形象，可视化程度更高,更利于沟通——在未来十年，这将是一个非常重要的技能....因为目前看来，我们基本上可以获取免费的和无处不在的数据。所以在未来社会发展中，最为珍贵最为稀缺的重要能力就是理解数据和提取数据价值的能力…经理需要访问和理解数据[4]。

Information technology (IT) plays a key role in creating knowledge [1] and supporting management towards decision making[2] and Visualization tools are computer applications that produce graphical representations that aid decision making. Visualization tools are used in IT based decision support systems (DSS) like the simple spreadsheets to complex computer-based systems like business intelligence system, enterprise resource management and reporting system, knowledge management systems, and expert systems; to help decision makers to solve structured ,unstructured and semi structured problems.

In the digital era, decision makers have access to large amount of digital data which can be used by visual analytics software to support decision making. Well structured problem has clear path to solution but for solving ill structured problem, external representation of the data and the problem can reduce the effort in reaching an accurate solution[3].

Chief economist of Google Inc predicts that need for data visualization will be growing rapidly in the next few years. He writes. “the ability to take data—to be able to understand it, to process it, to extract value from it, to visualize it, to communicate it—that’s going to be a hugely important skill in the next decade.... because now we really do have essentially free and ubiquitous data. So the complimentary scarce factor is the ability to understand that data and extract value from it… Managers need to be able to access and understand the data themselves [4].

Independent researchers have predicted high future demand for visualization tools. Gartner's research reports that in spite of global recession businesses are interested in investing in business intelligence (BI) platforms that are expanding their capabilities towards advanced data visualization, scorecards and interactive dashboards. It predicts BI market’s compound annual growth rate (CAGR) through 2012 to be 7.0% for stand-alone BI platforms ([5].

Review of the literature on computer graphics as decision aid reports that the format in which data is presented to decision makers is critical to provide information for making decision[6]. As per the dual coding theory, cognition consists of two sub systems: Visual and Verbal[7-9]. The theory specifies that when information is represented visually, the recall is easier and the human brain can process changes in shape, color and motion parallely. As per the Central Capacity theory humans have limited working memory [10] and visualization of data (e.g. chart, diagram, graph) activates the visual component of the short-term working memory (visual working memory) to hold the visual objects for immediate attention. Both the theory recommend visual data representati本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。