IT4775 introduces the Internet of Things, the rapidly expanding field of network-connected physical devices that sense, report, and sometimes act on data from the physical world. Students examine the hardware and software connections IoT requires, work through device identification and deployment, and build applications that consume and act on IoT-generated data, while studying the privacy and security issues these devices create.
IoT system layers
| Layer | Function | Example Component |
|---|---|---|
| Device Layer | Physical sensors and actuators that interact with the real world | Temperature sensor, smart lock, connected camera |
| Connectivity Layer | Transmits device data to processing systems | Wi-Fi, Bluetooth, cellular, or low-power wide-area networks |
| Processing Layer | Aggregates, analyzes, and stores incoming device data | Cloud or edge computing platforms |
| Application Layer | Presents data and enables decision-making or automated action | Dashboards, alerts, automated control systems |
What IT4775 covers
The course begins by establishing what distinguishes IoT from general networking: the specific hardware constraints of small, often battery-powered devices, the specialized low-power communication protocols many IoT devices use, and the infrastructure requirements needed to support potentially thousands of connected devices generating continuous data streams. Students work through the practical process of identifying, installing, and operating IoT devices, building hands-on familiarity with the deployment challenges these systems present.
IT4775 then moves into application development, where students build software that ingests data from IoT devices, generates meaningful reports, and supports decision-making based on that data. This connects directly to the broader purpose of IoT: sensor data alone provides no value until it informs an action or decision. The course devotes significant attention to privacy and security, since IoT devices frequently collect sensitive data (location, behavior patterns, biometric information) and have historically suffered from weaker security than traditional computing devices, making this analysis essential rather than optional.
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Key topics in IT4775
- IoT infrastructure requirements: hardware constraints and connectivity protocols for connected devices
- Device identification, installation, and operational deployment of IoT systems
- Application development: building software that consumes and reports on IoT-generated data
- Data-driven decision-making: translating IoT sensor data into actionable insights
- IoT privacy concerns: data collection scope and user consent considerations
- IoT security vulnerabilities: why connected devices have historically been weak security links
- Designing IoT systems with privacy and security built in from the start, not added afterward
Why IoT devices pose unique security challenges
- Many IoT devices have limited processing power, making robust encryption and security software difficult to implement
- Manufacturers often prioritize cost and time-to-market over security, shipping devices with weak default credentials
- IoT devices frequently lack straightforward update mechanisms, leaving known vulnerabilities unpatched for years
- The sheer scale of deployed IoT devices creates a massive attack surface, as demonstrated by large-scale IoT botnet attacks
- IoT devices often collect continuous, sensitive data about physical environments and human behavior, raising distinct privacy concerns beyond typical software security
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Frequently asked questions
IT4775 requires IT2249 plus either IT3280, IT2180, or IT3318. This ensures students have both programming fundamentals and foundational networking or systems knowledge before tackling IoT-specific device connectivity and application development.
No. Capella notes that students who received credit for IT4711 and IT4772 may not take IT4775, since these courses cover overlapping content under different course numbering used in earlier catalog versions. If you completed either of those courses, that credit satisfies the IT4775 requirement.
Common assignments include designing an IoT system architecture for a specific use case, building a basic application that processes and reports on simulated or real IoT device data, and a privacy and security analysis identifying vulnerabilities in a given IoT deployment scenario along with recommended mitigations. Capella expects both technical design competency and critical analysis of privacy and security implications.
The number of internet-connected devices, ranging from industrial sensors to consumer smart home products, continues to grow rapidly, creating substantial demand for IT professionals who understand how to design, deploy, and secure these systems. IoT skills are increasingly relevant across industries including manufacturing, healthcare, agriculture, and smart city infrastructure, making this a practically valuable specialization within broader IT and software development programs.