Building Definition Language

A Capability describes what an Entity can provide, receive, measure, control, transfer, resist, or perform.

Each Capability shall define:

Capability ID;

provider;

capability Type;

direction;

Interface;

operating range;

units;

conditions;

dependencies;

accuracy or uncertainty;

response time;

safety classification;

evidence;

current availability.

Example:

capability Kitchen_Cartridge_Cold_Water {

provider: @Kitchen_Service_01;

through: @Kitchen_Cold_Water_Interface;

type: potable_water_delivery;

direction: receive_and_distribute;

flow_range: [0 L/min, 15 L/min];

pressure_range: [140 kPa, 550 kPa];

maximum_temperature: 30 °C;

}

Capability status shall distinguish:

declared;

certified;

negotiated;

available;

allocated;

degraded;

unavailable;

unknown.

Required Capability may be represented as:

voltage: 120 V;

maximum_current: 15 A;

};

Provided Capability may be represented as:

voltage: 120 V;

available_current: 20 A;

};

Capability matching shall evaluate more than nominal Type. Ranges, direction, quality, duration, safety class, Interface, and dependencies shall also match.