Data management tasks require access to metadata, which is increasingly tracked by databases called data catalogs. Current catalogs are too dependent on users' understanding of data, leading to difficulties in large organizations of users with different skills: catalogs either make metadata easy for users to store and difficult to retrieve, or they make it easy to retrieve, but difficult to store. In this paper, we present 5W1H+R, a new catalog mental model that is comprehensive in the metadata it represents, and comprehensible in that it permits all users to locate metadata easily. We demonstrate these properties via a user study. We then discuss practical guidelines for implementing the new mental model. We conclude mental models are important to make data catalogs more useful and to boost metadata management efforts.

翻译：数据管理任务需要获取元数据,而元数据越来越多地通过称为数据目录的数据库加以跟踪。目前的目录过于依赖用户对数据的理解,导致拥有不同技能的大型用户组织的困难:目录要么使元数据易于存储和检索,要么使用户容易检索,但又难以存储。在本文件中,我们提出了5W1H+R,这是一个新的目录心理模型,它在其所代表的元数据中是全面的,可以理解,因为它允许所有用户很容易地查找元数据。我们通过用户研究来展示这些属性。我们然后讨论实施新的心理模型的实用指南。我们得出精神模型对于使数据目录更有用,促进元数据管理努力非常重要。