[2] Terms are now split into acronyms of CONTROL VARIABLE + BREATH SEQUENCE + TARGETING SCHEME.
The target variable only sets an upper limit for pressure, volume or flow.
Normally, flow is set to a fixed amount, meaning volume increases linearly over time.
Any mode that relies on flow to control inspiration falls under the VC- category.
Any mode that relies on pressure to deliver a breath falls under the PC- category.
Here only time is set by the operator and pressure and flow change obeying the equation of motion.