Roles that may be involved are:

Abbr.	Role	Description
EP	Eligible Party	A Party requesting or processing data shared by the customer.
PA	Permission Administrator	A party responsible for administrating a register of consents. The PA makes information about the consent (but not necessarily the data to be shared) available on request for entitled parties in the sector.
OCA	Online Consent Administrator	PA with a constant and publicly usable interface through an online service.
ICA	In-house Consent Administrator	Functional service managing the access to in-house data sources that would not be available online. Within the context of the EDDIE project, AIIDA is targeted to act as such.
MDA	Metered Data Administrator	A party responsible for storing and distributing validated measured data.
MS	Member State	Member State of the European Union. Within the scope of this project, MS can be viewed in a wider sense, meaning rather “regional cluster supporting data-sharing”, but political borders and data-sharing infrastructure responsibility for an area are not always the same.
FSP	Flexibility Service Provider	Independent energy service providers aggregating flexibilities into energy and grid ancillary service markets.
BRP	Balance Responsible Party	A party that is – according to the Harmonized Electricity Market Role Model (HEMRM) - responsible for its imbalances, meaning the difference between the energy volume physically injected to or withdrawn from the system and the final nominated energy volume, including any imbalance adjustment within a given imbalance settlement period.
DER	Distributed Energy Resource	Distributed Energy Resources are energy resources spread over different levels and locations throughout the energy systems, typically within residential low voltage environments. They can consist of Distributed Generation (e.g., photovoltaic systems), Distributed Flexible Loads (e.g., heat pumps, smart heaters) as well as Distributed Storage (e.g., standalone batteries, V1G and V2X electric vehicles)