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Gartner predicted that by 2026, there would be a whopping 20 billion connected IoT devices worldwide. While reaching the landmark does not seem a far-off reality when we consider the pace at which IoT adoption is taking place across industries, there are still challenges down the road that needs to be taken care of.

Security happens to be the biggest challenge that looms over the IoT space in every industry. As more and more data becomes available on-the-go and personal information is captured and used to provide consumer convenience, data security will take the backseat at times. Addressing this issue will become a priority for IoT services and devices providers.

Another challenge will be to test the automatically operating self-sufficient devices such as autonomous cars and other small and large devices. Manufacturers and technology integrators will have to make sure there is no room for errors when crucial IoT services such as error and fault detection in a manufacturing unit, etc., are concerned.
The ability of any IoT service to operate seamlessly depends on the device's application and the communication module between the devices that are interconnected. Here are some of the challenges developers, testers or an automated testing company face while testing the Internet of Things applications:
  •  The Hardware-Software issue: IoT is neither a device-related technology nor a simple technology. Instead, IoT embraces both hardware and software aspects of any application. This poses a challenge for testers as there is always interdependency between the two aspects of an application. The IoT environment, data transfer functions, etc., all are dependent on the different aspects, be it software or hardware components such as communication gateways, sensors, etc. However, the solution here is to continue the testing for the IoT application using a properly laid out strategy that covers the hardware and the software aspects equally and efficiently.
  • The network configuration of the devices: IoT applications and devices largely depend on the network through which they are interconnected for their smooth functioning. It is the job of the IoT tester to address all network configurations such as inconsistent internet connection, different channels, etc., to test all the different variations that may occur in the lifetime of the IoT device and application. Any Internet of Things application and functionality is all about the communication between the device and other sensors and warning systems.
  • Data Security Threats: IoT entails a frequent transfer of data from one device to another over a network, a fact that brings data security into the picture. The data-centric technology needs that the security and privacy of data be intact while operations are carried. While information is passed on between devices, there should be no room for any unauthorized users to access it. Data encryption is a responsibility of the testers to check the integrity of the IoT application. To solve this problem, IoT testers need to perform vulnerability checks and penetration testing to detect and then fill security flaws.
  • Scalability of operations: When we consider IoT, we talk about scalability as a given. IoT applications need to handle the sudden peak in traffic when newer devices become a part of the mesh and when the load increases. To test these scenarios, it is important for the developer and tester to understand that as devices get added into an IoT system, the system's complexity increases exponentially and that the primary difference will be seen in the speed and efficiency of communications. By adding many users in the test environment and checking the efficiency of the system, proper tests can be executed that enhance the reliability of the system when demand scales up.
A Video on IoT Challenges to know more about it at by Geveo Australasia
IoT is a budding field with newer explorations and innovations happening at increasingly faster rates today, and the challenges in testing IoT applications will become a thing of the past once the right steps can be taken to mature the technology's implementation.
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