National Science Foundation Research Definitions

The National Science Foundation (NSF) has established clear definitions for different categories of research. Understanding these distinctions is essential for researchers, policymakers, and anyone involved in the scientific enterprise. This page explores the three primary research categories defined by the NSF: basic research, applied research, and developmental research.

Basic Research

Basic research, sometimes referred to as fundamental or pure research, represents the pursuit of knowledge for knowledge's sake. It is driven by curiosity and the desire to understand the fundamental principles of nature, society, and the universe. This type of research does not have an immediate commercial or practical goal but instead aims to expand our theoretical understanding.

The primary output of basic research is new knowledge, typically published in academic journals and presented at scientific conferences. While the findings from basic research may eventually lead to practical applications, these outcomes are not the driving motivation behind the research. Basic research lays the foundation for future discoveries and often produces unexpected results that transform our understanding of the world.

Applied Research

Applied research builds upon the discoveries and theories generated by basic research. Unlike basic research, applied research is conducted with a specific practical goal in mind. It seeks to address particular problems or fulfill specific needs defined by industry, government, or societal requirements.

Applied research often requires interdisciplinary collaboration, bringing together expertise from multiple fields to solve complex problems. The outcomes of applied research typically include prototypes, patents, new processes, or technologies that can be further developed for commercial or practical use. While applied research has a specific goal in mind, it may also generate new basic knowledge as a byproduct of the research process.

Developmental Research

Developmental research, often referred to as research and development (R&D) or experimental development, represents the critical transition from scientific knowledge to practical application. It builds on the findings from basic and applied research to create or improve products, processes, or services.

Developmental research typically involves testing, refining, and optimizing existing knowledge and technologies to meet specific application requirements. This phase of research often includes prototype development, field testing, and iterative improvements based on feedback. The outputs of developmental research are typically tangible products, processes, or services ready for commercialization or implementation.

Key Differences Between Research Types

While these three categories of research along a spectrum rather than discrete entities, understanding their distinctions is important for funding, policy, and research planning:

Aspect	Basic Research	Applied Research	Developmental Research
Primary Motivation	Expanding knowledge	Solving specific problems	Creating/Improving products/services
Time Horizon	Long-term	Medium-term	Short-term
Focus	Theoretical understanding	Practical application	Implementation and commercialization
Outcome	New knowledge/publications	Prototypes/Technological capabilities	Commercial products/Implementable processes
Likelihood of Success	Highly uncertain	Moderately uncertain	Relatively certain

The Research Continuum

It's important to recognize that these research categories exist on a continuum rather than in isolation. Basic research often leads naturally to questions of application, which in turn inspire developmental work. Similarly, challenges encountered during development can spark new basic and applied research directions.

Many significant technological advancements have followed this path. For example, basic research into quantum mechanics in the early 20th century eventually led to applied research in semiconductor physics, which then enabled developmental research that produced modern computers and smartphones. Today, the continued miniaturization of electronic devices motivates new basic research in nanomaterials and quantum computing.

The NSF supports research across this entire spectrum, understanding that each type of scientific inquiry contributes to national innovation, competitiveness, and knowledge advancement. By maintaining a balanced portfolio supporting basic, applied, and developmental research, the NSF helps ensure that scientific discovery can progress from initial curiosity to practical benefit.

Conclusion

The National Science Foundation's distinctions between basic, applied, and developmental research provide a valuable framework for understanding different aspects of the scientific enterprise. Each type of research serves unique yet complementary roles in advancing knowledge and addressing societal challenges.

Basic research expands our fundamental understanding of the world, applied research targets specific practical needs, and developmental research translates scientific knowledge into tangible benefits. Together, these research approaches form the foundation of scientific progress and technological innovation, driving improvements in health, economic prosperity, environmental sustainability, and overall quality of life.

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