Logical Data Structure
EMarketOffer uses two broad types of data:
Static Data: Static data describes the Items Modelled in EMarketOffer (e.g. Generator maximum capacity).
Dynamic Data: Dynamic data described the state of the Modelled Items defined by the static data and changes rapidly over time, typically by Trading Period (e.g. Nodal Price)
Terminology
EMarketOffer's data design consists of 'things' included in the model, and the characteristics of those 'things'. In this manual the 'things' are called Entities and their characteristics are called Traits. Traits may be static or dynamic.
For example the Circuit Entity can have the static Traits of Start Node and End Node, and the dynamic Traits of Powerflow and Loss by Trading Period.
NOTE: : Static data is not permanently fixed and may, at times, be quite changeable, but within the context of EMarketOffer it is not necessary to be able to track such changes down to the Trading Period level.
Modelled Items
Four broad categories of item (Entity) are modelled in EMarketOffer:
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