Glossary and Abbreviations

Table 2 Glossary
Term	Definition/Description
SHALL	This word, or the terms “REQUIRED” or “MUST”, mean that the definition is an absolute requirement of the specification [1].
SHOULD	This word, or the adjective “RECOMMENDED”, mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course [1].
MAY	This word, or the adjective “OPTIONAL”, mean that an item is truly optional. One vendor may choose to include the item because a particular marketplace requires it or because the vendor feels that it enhances the product while another vendor may omit the same item. An implementation which does not include a particular option MUST be prepared to interoperate with another implementation which does include the option, though perhaps with reduced functionality. In the same vein an implementation which does include a particular option MUST be prepared to interoperate with another implementation which does not include the option (except, of course, for the feature the option provides) [1].
Northbound interface	In Computer Networking and Computer Architecture, a northbound interface of a component is an interface that allows the component to communicate to a higher-level component, using the latter component’s southbound interface.
Transpiler	Transpiling is a specific term for taking source code written in one language and transforming into another language that has a similar level of abstraction.
Quantum machine	A human-made device whose collective operation follows the laws of quantum mechanics.
Adjacency matrix	A square matrix normally used to represent a finite graph by defining adjacency of vertices as well as self-loops.

Table 3 Abbreviations
Term	Definition/Description
AMBA	Advanced microcontroller bus architecture
API	Application programming interface
ASIC	Application specific integrated circuit
CNOT	Controlled-not
CPU	Central processing unit
FPGA	Field programmable gate array
HAL	Hardware abstraction layer
ISCF	Industrial strategy challenge fund
NISQ	Noisy intermediate-scale quantum
PCI	Peripheral component interconnect
QFT	Quantum Fourier transform
QNN	Quantum neural network
QoS	Quality of service
QPU	Quantum processing unit
SPI	Serial peripheral interface
VQA	Variational quantum algorithm
VQE	Variational quantum eigensolver