Abstract

Transport infrastructure systems are very complex and expensive. Projects to procure such systems are costly, long and complex to manage. The procurement context usually includes many collaborating organizations but often with different concerns and priorities, and many interactions to other parties. This makes the procurement very complex and entangled. DoDAF, MoDAF and TRAK are three architecture frameworks (AF) that model the whole enterprise/system life cycle that includes system procurement. They are expressed as metamodels. In this paper, we analyse various procurements strategies and identify the concerns that AFs should address. The TRAK AF is then applied to a Rail procurement case study in collaboration with Transport for New South Wales (NSW) in Australia to assess its effectiveness in meeting the procurement needs. In all stages of the study, TRAK is mapped and compared to DoDAF and MoDAF to examine whether DoDAF or MoDAF can cover the inadequacies of TRAK. This paper shows that there is a considerable number of procurement needs which are overlooked by these architecture frameworks. It proposes a metamodel driven expansion to these frameworks to improve their completeness and expressiveness.

中文翻译：

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复杂运输项目的架构框架方法

摘要

运输基础设施系统非常复杂且昂贵。购买此类系统的项目成本高昂，管理时间长且复杂。采购环境通常包括许多合作组织，但通常具有不同的关注点和优先级，并且与其他各方有很多互动。这使采购变得非常复杂和纠结。DoDAF，MoDAF和TRAK是三个体系结构框架（AF），它们为包括系统采购在内的整个企业/系统生命周期建模。它们表示为元模型。在本文中，我们分析了各种采购策略，并确定了AF应该解决的问题。然后，与澳大利亚的新南威尔士州运输局（NSW）合作，将TRAK AF应用于铁路采购案例研究，以评估其满足采购需求的有效性。在研究的所有阶段，都将TRAK映射并与DoDAF和MoDAF进行比较，以检查DoDAF或MoDAF是否可以弥补TRAK的不足。本文表明，有很多采购需求被这些架构框架所忽略。它提出了由元模型驱动的对这些框架的扩展，以提高其完整性和表达能力。