It serves as the basic data model in numerous projects of the Stanford University Database Group, including Tsimmis, Lore, and C3.
[2] Slight variations of OEM have evolved across different Stanford projects.
In Lore, labels are actually on parent-child "links" rather than objects.
An atomic value encoding a person's name might be included in one complex object using the label "Author" and in another complex object using the label "Editor."
[2] Textual OEM interchange format used in Lore – The goals of this interchange format were to have textual encodings of OEM to be easy to read, easy to edit, and easy to generate or parse by a program.