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

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

Using equipment or systems.

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

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

Talking people into changing their minds or their behavior.

Bringing people together to solve differences.

Making equipment and technology useful for customers.

Figuring out how to use new ideas or things.

Using math to solve problems.

Talking to others.

Reading work-related information.

Understanding people's reactions.

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

Using scientific rules and strategies to solve problems.

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

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

Installing equipment, machines, wiring, or computer programs.

Making spending decisions and keeping track of what is spent.

Selecting and managing the best workers for a job.

Writing things for co-workers or customers.

Testing how well a product or service works.

Looking for ways to help people.

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

Teaching people how to do something.

Writing computer programs.

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

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

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

Planning and doing the basic maintenance on equipment.

Managing your time and the time of other people.

Managing equipment and materials.

Repairing machines or systems using the right tools.

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

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

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.

Keeping your balance or staying upright.

Seeing at night or under low light.

Seeing details up close.

Seeing something to your side when your are looking ahead.

Telling the difference between sounds.

Reading and understanding what is written.

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

Putting together small parts with your fingers.

Keeping your arm or hand steady.

Lifting, pushing, pulling, or carrying.

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

Holding or moving items with your hands.

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

Speaking clearly.

Seeing hidden patterns.

Quickly knowing what you are looking at.

Knowing where things are around you.

Listening and understanding what people say.

Communicating by writing.

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

Choosing the right type of math to solve a problem.

Adding, subtracting, multiplying, or dividing.

Doing two or more things at the same time.

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

Noticing the difference between colors, including shades and brightness.

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

Recognizing spoken words.

Jumping, sprinting, or throwing something.

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

Exercising for a long time without getting out of breath.

Seeing details that are far away.

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

Noticing the direction that a sound came from.

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

Communicating by speaking.

Coming up with lots of ideas.

Creating new and original ideas.

Noticing when problems happen.

Using rules to solve problems.

Ordering or arranging things.

Grouping things in different ways.

Remembering words, numbers, pictures, or steps.

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

Paying attention to something without being distracted.

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

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

Quickly moving your arms and legs.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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