Accompanying a data visualization with metadata may benefit readers by facilitating content understanding, strengthening trust, and providing accountability. However, providing this kind of information may also have negative, unintended consequences, such as biasing readers' interpretations, a loss of trust as a result of too much transparency, and the possibility of opening visualization creators with minoritized identities up to undeserved critique. To help future visualization researchers and practitioners decide what kinds of metadata to include, we discuss some of the potential benefits and risks of disclosing five kinds of metadata: metadata about the source of the underlying data; the cleaning and processing conducted; the marks, channels, and other design elements used; the people who directly created the visualization; and the people for whom the visualization was created. We conclude by proposing a few open research questions related to how to communicate metadata about visualizations.

翻译：在数据可视化与元数据相结合的同时,通过促进内容理解、加强信任和提供问责制,可使读者受益。但是,提供这类信息还可能产生负面的意外后果,例如偏向读者的解释,由于过于透明而丧失信任,以及可能打开具有微小身份的可视化创作者,直到当之无愧的批评。为了帮助未来的可视化研究人员和从业者决定应包括哪些类型的元数据,我们讨论了披露五种元数据的潜在好处和风险:关于基本数据来源的元数据;进行的清理和处理;使用的标记、频道和其他设计要素;直接创建可视化的人;以及创建可视化的人。我们最后提出一些与如何传播关于可视化的元数据有关的公开研究问题。