In the field of management, strategic management involves the formulation and implementation of the major goals and initiatives taken by an organization's managers on behalf of stakeholders, based on consideration of resources and an assessment of the internal and external environments in which the organization operates. Strategic management provides overall direction to an enterprise and involves specifying the organization's objectives, developing policies and plans to achieve those objectives, and then allocating resources to implement the plans. Academics and practicing managers have developed numerous models and frameworks to assist in strategic decision-making in the context of complex environments and competitive dynamics. Strategic management is not static in nature; the models can include a feedback loop to monitor execution and to inform the next round of planning.

Michael Porter identifies three principles underlying strategy:

Corporate strategy involves answering a key question from a portfolio perspective: "What business should we be in?" Business strategy involves answering the question: "How shall we compete in this business?" Alternatively, corporate strategy may be thought of as the strategic management of a corporation (a particular legal structure of a business), and business strategy as the strategic management of a business.

Management theory and practice often make a distinction between strategic management and operational management, where operational management is concerned primarily with improving efficiency and controlling costs within the boundaries set by the organization's strategy.^{[citation needed]}

Strategy has been practiced whenever an advantage was gained by planning the sequence and timing of the deployment of resources while simultaneously taking into account the probable capabilities and behavior of competition.

In 1988, Henry Mintzberg described the many different definitions and perspectives on strategy reflected in both academic research and in practice. He examined the strategic process and concluded it was much more fluid and unpredictable than people had thought. Because of this, he could not point to one process that could be called strategic planning. Instead Mintzberg concludes that there are five types of strategies:

In 1998, Mintzberg developed these five types of management strategy into 10 "schools of thought" and grouped them into three categories. The first group is normative. It consists of the schools of informal design and conception, the formal planning, and analytical positioning. The second group, consisting of six schools, is more concerned with how strategic management is actually done, rather than prescribing optimal plans or positions. The six schools are entrepreneurial, visionary, cognitive, learning/adaptive/emergent, negotiation, corporate culture and business environment. The third and final group consists of one school, the configuration or transformation school, a hybrid of the other schools organized into stages, organizational life cycles, or "episodes".

Michael Porter defined strategy in 1980 as the "...broad formula for how a business is going to compete, what its goals should be, and what policies will be needed to carry out those goals" and the "...combination of the ends (goals) for which the firm is striving and the means (policies) by which it is seeking to get there." He continued that: "The essence of formulating competitive strategy is relating a company to its environment."