AWS	Amazon Web Services
DAS	Distributed Acoustic Sensing
DB	Data base
FBG	Fiber Bragg Grating
FFT	Fast Fourier Transform
IaaS	Cloud Infrastructure as a service
IOT	Internet of Things
MI	Million Instruction
MIPS	Million Instruction Per Second
NoSQL	Not only SQL
OTDR	Optical Time Domain Reflectometer
PaaS	Cloud Platform as service
PE	Processing Elements
RBS	Rayleigh back-scattering
RTT	Round-Trip Time
SaaS	Cloud software as a service
SNR	Signal-to-Noise Ratio
SQL	Sequential Query Language
SWI	Swept Wavelength Interferometry
VM	Virtual Machine