This study examines the documents circulated among biomedical equipment repair technicians in order to build a conceptual model that accounts for multilayered temporality in technical healthcare professional communities. A metadata analysis informed by digital forensics and trace ethnography is employed to model the overlapping temporal, format-related, and annotation characteristics present in a corpus of repair manual files crowdsourced during collaborations between volunteer archivists and professional technicians. The corpus originates within iFixit.com's Medical Device Repair collection, a trove of more than 10,000 manuals contributed by working technicians in response to the strain placed on their colleagues and institutions due to the COVID-19 pandemic. The study focuses in particular on the Respiratory Analyzer subcategory of documents, which aid in the maintenance of equipment central to the care of COVID-19 patients experiencing respiratory symptoms. The 40 Respiratory Analyzer manuals in iFixit's collection are examined in terms of their original publication date, the apparent status of their original paper copies, the version of PDF used to encode them, and any additional metadata that is present. Based on these characteristics, the study advances a conceptual model accounting for circulation among multiple technicians, as well as alteration of documents during the course of their lifespans.

中文翻译：

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法医重建生物医学维护劳动：COVID-19认知条件下的PDF元数据

本研究检查了在生物医学设备维修技术人员之间传播的文件，以建立一个概念模型，该模型解释了技术医疗保健专业社区中的多层时间性。采用由数字取证和追踪民族志提供的元数据分析来模拟在志愿档案管理员和专业技术人员合作期间众包的修复手册文件语料库中存在的重叠时间、格式相关和注释特征。该语料库源自 iFixit.com 的医疗器械维修系列，该系列包含 10,000 多本手册，由在职技术人员为应对 COVID-19 大流行给他们的同事和机构带来的压力而贡献。该研究特别关注呼吸分析仪子类别的文件，这有助于维护对出现呼吸道症状的 COVID-19 患者的护理至关重要的设备。iFixit 收藏中的 40 份呼吸分析仪手册根据其原始出版日期、原始纸质副本的外观状态、用于对其进行编码的 PDF 版本以及存在的任何其他元数据进行了检查。基于这些特征，该研究提出了一个概念模型，该模型解释了多个技术人员之间的流通，以及在其生命周期中文件的更改。原始纸质副本的外观状态、用于对其进行编码的 PDF 版本以及存在的任何其他元数据。基于这些特征，该研究提出了一个概念模型，该模型解释了多个技术人员之间的流通，以及在其生命周期中文件的更改。原始纸质副本的外观状态、用于对其进行编码的 PDF 版本以及存在的任何其他元数据。基于这些特征，该研究提出了一个概念模型，该模型解释了多个技术人员之间的流通，以及在其生命周期中文件的更改。