Open government data, as a phenomena, may be considered an important and influential innovation that has the potential to drive the creation of public value via enabling the prevention of corruption, increase in accountability and transparency, and driving the co-creation of new and innovative services. However, in order for open government data to be fully taken advantage of, it must be found, understood, and used. Though many countries maintain open government data portals, the usability of said portals can vary greatly; this is important to understand as the usability of a portal likely impacts the eventual reuse of the data made available there. Acknowledging the importance of portal usability to the data reuse process, this paper helps to elucidate some initial insights by asking two questions: “How can the usability of open government data portals be evaluated and compared across contexts?” and “What are the most commonly missing usability aspects from open government data portals?”. In order to answer these research questions, a subset of 41 national open government data portals were selected for an in-depth usability analysis drawing on the feedback from 40 individual users. As a result of this analysis, the paper is able to make three primary contributions: (1) the validation of a framework for open government data portal usability analysis, (2) develops an initial comparative international ranking of open government data portal usability, and (3) identifies commonly occurring portal usability strengths and weaknesses across contexts.

作为一种现象，开放的政府数据可以被认为是一项重要且有影响力的创新，它有可能通过防止腐败，增加问责制和透明度以及推动新的和创新的共同创造来推动公共价值的创造。服务。但是，为了充分利用公开的政府数据，必须找到，理解和使用它们。尽管许多国家/地区都维护着开放的政府数据门户，但是这些门户的可用性可能有很大的不同。了解这一点很重要，因为门户的可用性可能会影响那里可用数据的最终重用。认识到门户网站可用性对数据重用过程的重要性，本文通过提出两个问题来帮助阐明一些初步见解：如何跨上下文评估和比较开放的政府数据门户的可用性？”和“开放政府数据门户网站最常缺少的可用性方面是什么？”。为了回答这些研究问题，选择了41个国家开放政府数据门户网站的子集，以根据40个个人用户的反馈进行深入的可用性分析。分析的结果是，本文能够做出三点主要贡献：（1）验证开放政府数据门户可用性分析框架；（2）建立开放政府数据门户可用性的初步比较国际排名；以及（3）确定跨上下文的常见门户网站可用性优势和劣势。