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Pearson BTEC International Level 3 Qualifications in Information Technology –
Specification – Issue 3 – September 2022 © Pearson Education Limited 2022
255
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identifying technical and design constraints, e.g. connectivity, memory storage,
and power requirements and working around them
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obtaining and using feedback from others to improve the quality,
effectiveness and appropriateness of the design
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decisions and processing steps, e.g. flow chart.
B2 Machine-to-machine (M2M) system and device architecture
The architecture of M2M communications in IoT systems and devices, including:
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sensors – when they might be used and how their data is translated in the
system (from analogue to digital, from raw format to a readable, compatible
format), including speed, suspension, pressure, and temperature and
emission sensors
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wired and wireless communications – how they work and how they are used
in IoT, including General Packet Radio Service (GPRS), Wi-Fi, Ethernet and
Bluetooth
®
low energy (BLE), RFID and Quick Response (QR) codes
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actuators – how they are used in IoT, e.g. controllers, motors and servos
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device domain that provides communications between components – how they
are used in IoTs, e.g. personal area networks
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network domain provides the communications between M2M gateways and
M2M applications, e.g. wide area network (WAN) and wireless local area
network (WLAN)
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application domain provides the middleware layer where data is used by
business logic layers for processing to target the end user and customer,
e.g. billing functions and customer care.
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