| Subdiscipline | Engineering scope | Major specialties |
| Bioinformatics | Data science within the scope of digital tools to collect and analyze biomedical data, such as DNA |
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| Bioinstrumentation | Electronics & Measurement within the scope of devices and tools that are used in the diagnosis and treatment of disease, often overlapping with biotechnology | Neuroscience Biomechatronics Photonics Instrumentation Biosensors Medical devices |
| Biomaterials | Materials science related to interfacing materials with or within the body | Ceramic engineering Polymer engineering Metalworking Biocompatibility Implant design Drug delivery |
| Biomechanics | Mechanical systems involving kinematics, material deformation, artificial organs, transport of chemical substances across biological membranes, and flow related to biological substances inside and outside the body | Military engineering Sports engineering Rehabilitation engineering Ergonomics Prosthetics Fluid dynamics Accident reconstruction |
| Biomolecular engineering | Biological systems | Genetic engineering Chemical engineering Molecular engineering Chemistry Synthetic biology Systems biology Nanotechnology |
| Clinical engineering | Healthcare systems within the scope of hospital-related functions, including data management, instruments, and monitoring systems | Facilities engineering Radiation protection Project engineering Healthcare technology management Logistics Cybersecurity |
| Medical imaging | Visualization systems for biological systems, such as MRI, EEG, PET, and CT | Image processing Computer vision Signal processing Medical physics 3D reconstruction Artificial intelligence |
| Neural engineering | Brain–computer interface related to recording and processing signals from brain activity for diagnostic and therapeutic purposes, often with the goal of replacing/restoring lost sensorimotor abilities | Neuromodulation Neuroprosthetics Cognitive engineering Signal processing Biosignal processing Neurochips Neurorobotics |
| Pharmaceutical engineering | Process architecture within the scope of pharmaceuticals and drug delivery | Process engineering Project engineering Manufacturing Drug design Quality control Scalability |
| Regenerative medicine | Tissue systems | Tissue engineering Cellular engineering Tissue culture 3D bioprinting Stem cell therapy |
| Subdiscipline | Engineering scope | Major specialties |
| Environmental engineering | Applications of environmental science |
- Ecological engineering – design, monitoring, and construction of ecosystems
- Fire protection engineering – as applied to the outdoor environment and wildfires
- Natural resources engineering
- Sanitary engineering – separation and removal of community sewage; increasingly interdisciplinary as a branch of environmental engineering
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| Geotechnical engineering | The behavior of earth materials and soil and rock mechanics, often in preparation of a project site | Mining engineering – extracting and processing mineral ore from a natural environment |
| Municipal or urban engineering | The coordination and management of municipal infrastructure networks | |
| Structural engineering | Structures that support or resist structural loads. | Architectural engineering – building design and construction Construction engineering – construction procedures and management Earthquake engineering – structures subject to seismic loading Ocean engineering – offshore structures Pavement engineering – road structures subject to dynamic loading Wind engineering – structures subject to wind effects* Tropical cyclone engineering – hurricane-force winds and emergency preparedness |
| Transport engineering | Facilities and infrastructure for any form of transportation of people and cargo | Railway engineering – rail transportTraffic engineering – roadways*Bicycle transportation engineering – cycling infrastructure*Highway engineering – major roadways |
| Water resources engineering | Technical application of hydrology | Coastal engineering – construction within the coastal zone, often directed at combating erosion and storm surges*Hard and soft engineering of shorelinesGroundwater engineering – modifying groundwater by withdrawing or adding fluidsHydraulic engineering – supply and drainage of fluidsRiver engineering – modification of a river's course, flow, or other characteristics |
| Subdiscipline | Engineering scope | Major specialties |
| Broadcast engineering | Radio and television broadcasting |
- Radio-frequency engineering – radio-band signal devices
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| Computer engineering | Electronic computing devices | Computational engineering – computational engineering models Cybersecurity engineering Data engineering – systems which collect and use vast amounts of data Hardware engineering – physical computer equipment Information engineering – generation, distribution, analysis, and use of information in systems Network engineering Software engineering – application of computer science to software Teletraffic engineering – transportation traffic theory applied to telecommunications |
| Electronic engineering | Low-power electrical circuits using of active components such as semiconductor devices | Control engineering – regulation of automated systems through sensors and corrective feedback Electronics denotes a broad engineering field that covers subfields such as analog electronics, digital electronics, consumer electronics, embedded systems and power electronics. Electronics engineering deals with the implementation of applications, principles, and algorithms developed within many related fields, for example solid-state physics, radio engineering, telecommunications, control systems, signal processing, systems engineering, computer engineering, instrumentation engineering, electric power control, robotics, and many others Instrumentation engineering – automated measurements Signal processing – analysis, modifying and synthesizing electronic signals Telecommunications engineering – processing and transmitting information through wired or wireless communications |
| Microwave engineering | Devices operating at microwave frequencies | Microwave imaging Radar engineering RF microwave engineering |
| Optical engineering | Technologies that utilize light | Optoelectronics Optomechanics Photonics |
| Power engineering | Generation and distribution of electric power | High voltage engineering, involves the understanding of electromagnetic phenomena of large voltages and currents, as applied to the holistic power system design and its components, such as transformers, electric motors, electric generators, switchgear, to create coordination and harmonyPower plant engineering Power system design, the development of a specific solution to address a power need, such as a new substation, a new power line, power system protection and so on Power system operations and control, involves plant and system operation, where protocols for the safe and continuous operation of individual equipment, subsystems, power plants, or the whole power system are developed and applied Power system planning, involves the modelling of power systems to analyse the management of current and future electricity demand Protection and control, involves the design of power system protection, measurements, metering, telecommunications, and so on |