Systems Engineering

Trade Study

A Trade Study is a study that identifies a preferred solution among a list of qualified solutions. The trade study will examine these solutions against criteria such as; cost, schedule, performance, weight, system configuration, complexity, the use of Commercial off-the-Shelf (COTS),  and many others. Trade Studies are performed throughout an acquisition program from concept development thru system design. In systems engineering, they’re primarily used to determine operational and system-level requirements.

Definition: A Trade Study is a decision-making method used to identify the best solution among a group of proposed solutions.

Purpose of Trade Studies

The purpose of trade studies is to support decision-making throughout the life cycle of a program. Trade studies are conducted among operational capabilities, functional, and performance requirements, design alternatives, and their related manufacturing, testing, and support processes; program schedule; and life-cycle cost to systematically examine alternatives. Once alternatives have been identified, a trade study team applies a set of decision criteria to analyze the alternatives. These criteria are ‘traded’ to determine which alternative is optimal and to be recommended.

Trade Study Methodology

Most trade studies are not strictly formal or informal; usually, they fall somewhere in between these two extremes. As a general rule, formal trade studies are indicated for high-value, high-risk, or other high-impact decisions. Not all trade studies should follow the full rigor of a formal process but should be tailored to the specific circumstances of the program such as: [1]

  • Likelihood or severity of programmatic risk,
  • Objectivity and quantitative data used,
  • Details in available data, and
  • Time, effort, and money needed to conduct the trade study.

What do Trade Study Support

Trade Studies support the following activities:

AcqLinks and References:

Updated: 6/20/2021

Rank: G2

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