Obstacles, Technologies and Testing Methodology of Internet of Things (IoT)

What is Internet of Things (IoT)?

IoT refers to the interconnection of automobiles, household appliances and medical devices using embedded technologies, computer chips, etc., to gather and transmit data of various types. This innovation enables the user to operate gadgets across a network wirelessly.

Examples of Internet of Things (IoT)

Implementations of IoT in the real world include the following:


● Wearable technology: Smartwatches may readily integrate with smartphones. They aid in collecting important data such as health, heart rate monitoring, sleeping activities, etc. These also facilitate the presentation of data and reminders from smartphones.
● Innovation and Technology: With the help of specific software, it is simpler to obtain real-time outdoor illumination data, which is then used to determine whether street lights should be on or off. Other software also manage traffic lights and parking spaces in a complex urban layout.
● Healthcare: There is some software for monitoring patients’ health problems. Using standardized data, the services regulate the amount of medication during various day periods. Some programs can monitor hydration levels in the patient’s body and trigger fluid transmission. Simultaneously, the data can be remotely shared with multiple stakeholders.

IoT-related technologies

The innovations listed below are some of the technology used in IoT:


● NFC [Near Field Communication] facilitates bidirectional communication between electrical gadgets. This is predominantly used for contactless mobile payment transactions on cell phones.
● Bluetooth is utilized when short-range communications suffice to circumvent the difficulty. It is typically used in wearable technology.
● RFID [Radio Frequency Code] tags and EPC [Electronic Product Code] barcodes are becoming increasingly prevalent.
● WiFi is the most prevalent IoT connectivity option. This facilitates the movement of files, data, and messages over a LAN.
● Z-Wave is a low-power RF communication technique. They are primarily utilized for home automation and lamp control.

IoT Testing Approaches

Consider a Health care monitoring system in which the equipment tracks the patient’s health, heart rate, and hydration consumption and delivers a notification to the specialists. This information is stored in the system, and past data can be accessed anytime necessary.

Based on the results, clinicians can commence drug intake and fluid additives. This can be initiated electronically from any system to which the medical equipment is linked [computers or smart devices].

Now, to test such an architecture, we must employ multiple testing methods, such as;

Usability:


● Each device must be usable.
● The healthcare monitoring equipment should be lightweight enough to be transferred.
● Equipment should push notifications, glitches, cautions, etc.
● The system should record all events for the target audience. If not, the program should save those in a database.
● The gadgets’ [computers/smartphones] alerts and displays should be appropriately handled.

IoT Security:


● IoT is data-centric; hence all linked devices/systems function on accessible data.
● Data can be obtained or read during transmission between devices.
● We must test if data is encrypted when transported between devices.
● We must encrypt all UIs.

Connectivity:


● Connectivity is crucial for a healthcare service.
● The platform must always be available and connected to stakeholders.
● Verify two things regarding connectivity:
● When connected, data transmission and job task receipt should be flawless.

What are The Challenges of IoT?

Some challenges testers encounters are listed below:


● Mesh software-hardware: IoT is a hardware-software framework. Hardware applications, sensors, connection gateways, etc., also play a vital role in the network. The testing phase alone doesn’t certify a system. Environment, data transport, etc., are interdependent. It’s more arduous than evaluating a universal system [just software/hardware].
● Device Interaction: As this is a hardware-software design, they must communicate in real-time/near real-time. Things like security, backward compatibility, and upgrade difficulties create difficulty for the testing team when they both integrate.
● Real-time testing: As we said previously, Pilot diagnostics testing is required for a technology like this, it’s difficult to collect such data. Testing, environmental inspections, and pilot system deployment are complex. If the technology is tied to healthcare, the step is considerably harder. So, testing remains an issue.

Internet of Things Testing Tools

Various tools are employed in the testing of IoT systems.

Software:


● Wireshark: This is a free software tool for monitoring network traffic, destination host addresses, etc.
● Tcpdump: This is identical to Wireshark; however, it does not have a graphical user interface. This is a command-line application that allows the user to view the TCP/IP and other packets sent and received across a network.

Hardware:


● JTAG Dongle: In Software applications, this is equivalent to a debugger. This aids in debugging the target system code and sequentially displaying variables.
● Digital Storage Oscilloscope: This is used to evaluate time stamps, power distribution faults, and signal integrity.

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