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首页> 外文期刊>Complex Systems Informatics and Modeling Quarterly >A Methodology for Operationalizing Enterprise IT Architecture and Evaluating its Modifiability
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A Methodology for Operationalizing Enterprise IT Architecture and Evaluating its Modifiability

机译：一种用于运营企业IT架构并评估其可修改性的方法论

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Recent contributions to information systems theory suggest that the primary role of a firm’s information technology (IT) architecture is to facilitate, and therefore ensure the continued alignment of a firm’s IT investments with a constantly changing business environment. Despite the advances we lack robust methods with which to operationalize enterprise IT architecture, in a way that allows us to analyze performance, in terms of the ability to adapt and evolve over time. We develop a methodology for analyzing enterprise IT architecture based on “Design Structure Matrices” (DSMs), which capture the coupling between all components in the architecture. Our method addresses the limitations of prior work, in that it i) captures the architecture “in-use” as opposed to high level plans or conceptual models; ii) identifies discrete layers in the architecture associated with different technologies; iii) reveals the “flow of control” within the architecture; and iv) generates measures that can be used to analyze performance. We apply our methodology to a dataset from a large pharmaceutical firm. We show that measures of coupling derived from an IT architecture DSM predict IT modifiability – defined as the cost to change software applications. Specifically, applications that are tightly coupled cost significantly more to change.
机译：对信息系统理论的最新贡献表明，公司信息技术（IT）架构的主要作用是促进并因此确保公司的IT投资与不断变化的商业环境保持一致。尽管取得了进步，但我们仍缺乏可用于使企业IT体系结构运作的健壮方法，从而无法根据随时间变化的适应性和发展能力来分析性能。我们开发了一种基于“设计结构矩阵”（DSM）的企业IT体系结构分析方法，该方法捕获了体系结构中所有组件之间的耦合。我们的方法解决了先前工作的局限性：i）捕获了“使用中”的架构，而不是高层计划或概念模型; ii）识别架构中与不同技术相关的离散层; iii）揭示了架构内的“控制流”; iv）产生可用于分析绩效的措施。我们将我们的方法应用于大型制药公司的数据集。我们表明，从IT架构DSM派生的耦合度量可预测IT可修改性-定义为更改软件应用程序的成本。具体而言，紧密耦合的应用程序的更改成本明显更高。

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