对高能物理分析元数据系统未来发展的制约
Constraints on future analysis metadata systems in High Energy Physics
摘要：
在高能物理（HEP）中，分析元数据有多种形式--从理论截面到校准校正，再到文件处理的详细信息。正确应用元数据是分析中至关重要且通常耗时的步骤，但设计分析元数据系统历来很少受到直接关注。在其他考虑因素中，理想的元数据工具应该易于新分析人员使用，应该扩展到大数据量和不同的处理范式，并应支持未来的分析重新解释。本文档是由HEP软件基金会组织的社区讨论的产物，按范围和格式对元数据类型进行了分类，并给出了当前元数据解决方案的示例。元数据系统，包括社会学因素，分析保存工作，和技术因素的重要设计考虑进行了讨论。提出了未来分析元数据系统的最佳做法和技术要求清单。这些最佳实践可以指导未来跨实验的元数据分析工具的开发。
英文摘要：
In High Energy Physics (HEP), analysis metadata comes in many forms -- from theoretical cross-sections, to calibration corrections, to details about file processing. Correctly applying metadata is a crucial and often time-consuming step in an analysis, but designing analysis metadata systems has historically received little direct attention. Among other considerations, an ideal metadata tool should be easy to use by new analysers, should scale to large data volumes and diverse processing paradigms, and should enable future analysis reinterpretation. This document, which is the product of community discussions organised by the HEP Software Foundation, categorises types of metadata by scope and format and gives examples of current metadata solutions. Important design considerations for metadata systems, including sociological factors, analysis preservation efforts, and technical factors, are discussed. A list of best practices and technical requirements for future analysis metadata systems is presented. These best practices could guide the development of a future cross-experimental effort for analysis metadata tools.
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