Figuring out how a system should work and how changes in the future will affect it.

Planning and doing the basic maintenance on equipment.

Using scientific rules and strategies to solve problems.

Teaching people how to do something.

Thinking about the pros and cons of different ways to solve a problem.

Keeping track of how well people and/or groups are doing in order to make improvements.

Talking people into changing their minds or their behavior.

Using equipment or systems.

Figuring out what is causing equipment, machines, wiring, or computer programs to not work.

Repairing machines or systems using the right tools.

Testing how well a product or service works.

Measuring how well a system is working and how to improve it.

Making spending decisions and keeping track of what is spent.

Managing equipment and materials.

Selecting and managing the best workers for a job.

Using math to solve problems.

Talking to others.

Figuring out what a product or service needs to be able to do.

Listening to others, not interrupting, and asking good questions.

Watching gauges, dials, or display screens to make sure a machine is working.

Writing computer programs.

Deciding what kind of tools and equipment are needed to do a job.

Changing what is done based on other people's actions.

Reading work-related information.

Using the best training or teaching strategies for learning new things.

Looking for ways to help people.

Figuring out how to use new ideas or things.

Understanding people's reactions.

Bringing people together to solve differences.

Thinking about the pros and cons of different options and picking the best one.

Managing your time and the time of other people.

Making equipment and technology useful for customers.

Writing things for co-workers or customers.

Noticing a problem and figuring out the best way to solve it.

Installing equipment, machines, wiring, or computer programs.

Reading and understanding what is written.

Communicating by speaking.

Communicating by writing.

Adding, subtracting, multiplying, or dividing.

Putting together small parts with your fingers.

Using your arms and/or legs together while sitting, standing, or lying down.

Changing when and how fast you move based on how something else is moving.

Quickly and repeatedly bending, stretching, twisting, or reaching out with your body, arms, and/or legs.

Keeping your balance or staying upright.

Seeing details up close.

Seeing details that are far away.

Noticing the difference between colors, including shades and brightness.

Seeing something to your side when your are looking ahead.

Paying attention to one sound while there are other distracting sounds.

Remembering words, numbers, pictures, or steps.

Holding or moving items with your hands.

Choosing the right type of math to solve a problem.

Creating new and original ideas.

Grouping things in different ways.

Telling the difference between sounds.

Coming up with lots of ideas.

Quickly moving your hand, finger, or foot based on a sound, light, picture or other command.

Making fast, simple, repeated movements of your fingers, hands, and wrists.

Quickly moving your arms and legs.

Lifting, pushing, pulling, or carrying.

Exercising for a long time without getting out of breath.

Moving your arms, legs, and mid-section together while your whole body is moving.

Noticing the direction that a sound came from.

Seeing something even if there is a glare or very bright light.

Listening and understanding what people say.

Seeing hidden patterns.

Using rules to solve problems.

Keeping your arm or hand steady.

Quickly deciding if you should move your hand, foot, or other body part.

Jumping, sprinting, or throwing something.

Exercising for a long time without your muscles getting tired.

Using your lower back and stomach.

Bending, stretching, twisting, or reaching with your body, arms, and/or legs.

Seeing at night or under low light.

Deciding which thing is closer or farther away from you, or deciding how far away it is from you.

Speaking clearly.

Recognizing spoken words.

Ordering or arranging things.

Making general rules or coming up with answers from lots of detailed information.

Knowing where things are around you.

Noticing when problems happen.

Paying attention to something without being distracted.

Quickly comparing groups of letters, numbers, pictures, or other things.

Quickly knowing what you are looking at.

Imagining how something will look after it is moved around or changed.

Doing two or more things at the same time.

Quickly changing the controls of a machine, car, truck or boat.

Knowledge of administrative and office procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and workplace terminology.

Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems.

Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.

Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders.

Knowledge of group behavior and dynamics, societal trends and influences, human migrations, ethnicity, cultures, and their history and origins.

Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life.

Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance.

Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.

Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.

Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits.

Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.

Knowledge of economic and accounting principles and practices, the financial markets, banking, and the analysis and reporting of financial data.

Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems.

Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.

Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub-atomic structures and processes.

Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment.

Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures.

Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects.

Knowledge of the structure and content of a foreign (non-English) language including the meaning and spelling of words, rules of composition and grammar, and pronunciation.

Knowledge of historical events and their causes, indicators, and effects on civilizations and cultures.

Knowledge of media production, communication, and dissemination techniques and methods. This includes alternative ways to inform and entertain via written, oral, and visual media.

Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.

Knowledge of techniques and equipment for planting, growing, and harvesting food products (both plant and animal) for consumption, including storage/handling techniques.

Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.

Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.

Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.

Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.

Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.

Knowledge of the theory and techniques required to compose, produce, and perform works of music, dance, visual arts, drama, and sculpture.

Knowledge of different philosophical systems and religions. This includes their basic principles, values, ethics, ways of thinking, customs, practices, and their impact on human culture.

Knowledge of transmission, broadcasting, switching, control, and operation of telecommunications systems.