How to refer to category metadata in DataCite

Here we list a number of general and discilinary metadata categories we found in our repositories:

Research Project / Sensor Network

Research Platforms / Facility

Geographical Region

Disciplines

Methodology

measured Parameters

measured attribute

measured unit

measured Object / Medium

Scientific Instruments

sampleID

Event

Geographic Feature

Material & Sample Type

Data & Format

Process & Phenomena

Human Impact & Land Use

Software

Date/Time

Epoch

Species

As it is not well defined, how to refer to these categories in the different metadata schemas, we collect use cases and make recommendations how to deal with them with selected schemas.