Overview

A method is a deliberate, repeatable way of accomplishing a task or answering a question. It may be expressed as a sequence of steps, a set of rules, a technique, a protocol or an algorithm. Methods range from informal habits and heuristics used in everyday life to highly formalized procedures codified in standards, manuals or scientific publications. Their purpose is to make action predictable, verifiable and communicable.

Common types

  • Scientific method: iterative observation, hypothesis development, experimentation and analysis, aiming for testable and falsifiable conclusions.
  • Research methods: quantitative (surveys, experiments, statistical analysis), qualitative (interviews, ethnography, case studies) and mixed methods combining both.
  • Technical and engineering methods: design processes, testing protocols, maintenance and manufacturing procedures.
  • Computing methods: algorithms, subroutines and object-oriented methods (operations associated with data structures).
  • Educational methods: instructional approaches, assessment techniques and classroom procedures.

Characteristics and criteria

Good methods are clear in aim and scope, reproducible, efficient and appropriate to the context. They include criteria for success, specify inputs and expected outputs, and often incorporate measures of validity, reliability and uncertainty. Documentation should state assumptions, materials, step-by-step actions and evaluation measures so others can replicate or adapt the method.

History and distinctions

The term traces to the Greek methodos (a path of inquiry). Modern conceptions of systematic inquiry were influenced by thinkers such as René Descartes, who promoted analytic doubt and logical decomposition, and Francis Bacon, who emphasized empirical observation and inductive reasoning. It is important to distinguish method (a specific procedure) from methodology (the philosophical analysis and study of methods).

Application, selection and ethics

Selecting a method depends on goals, constraints, available resources and ethical considerations. In applied settings, standard operating procedures and quality control systems translate methods into routine practice. Ethical use requires transparency about limitations, potential biases and impacts; inappropriate or poorly documented methods can lead to irreproducible or harmful outcomes.

Designing and documenting a method

When creating or reporting a method include: a clear title, purpose and scope; required materials or data; step-by-step instructions; criteria for success and known limitations; and guidance for replication or adaptation. Thorough documentation supports evaluation, comparison and cumulative improvement across fields.