A systematic process for calculating and comparing the benefits and costs of a project, decision, or investment.
- Methodologies: Engineering, Product Design, Project Management
Cost-Benefit Analysis

Cost-Benefit Analysis
- Cost Allocation, Efficiency, Financial, Process Improvement, Project Management, Risk Analysis, Value Analysis, Value Engineering (VE)
Objective:
How it’s used:
- The analysis involves identifying all potential costs (financial, resource, etc.) and all potential benefits (revenue, efficiency gains, etc.), monetizing them, and comparing them to determine if the project is financially viable.
Pros
- Provides a rational, data-driven basis for decision-making; helps to compare different options objectively; improves resource allocation.
Cons
- It can be difficult to accurately quantify all costs and benefits, especially intangible ones; results can be manipulated by biased assumptions; it's a forecast, not a guarantee.
Categories:
- Economics, Project Management, Risk Management
Best for:
- Making major business or project decisions by systematically weighing the expected financial costs against the expected benefits.
Cost-Benefit Analysis (CBA) is frequently utilized in various sectors such as healthcare, engineering, transportation, and technology to inform decision-making processes about large-scale projects or product launches. For instance, in the healthcare industry, CBA can evaluate the costs and benefits of introducing a new medical treatment by comparing its costs, including research and development, manufacturing, and marketing, against the anticipated benefits, such as improved patient outcomes and reduced hospitalizations. Similarly, in engineering, companies might use CBA when deciding whether to invest in new machinery, where the financial outlay for equipment is weighed against increased production efficiency and reduced operational costs. This methodology is particularly useful during the feasibility stage of project development, as it allows stakeholders—ranging from project managers to financial analysts—to systematically assess different project options before committing resources. Participants may include cross-functional teams comprising economists, financial analysts, engineers, and project managers, who collaborate to ensure that all potential costs and benefits are accurately identified and quantified. In practice, CBA not only supports identifying the most financially viable option but also enhances transparency and accountability within organizations, facilitating informed discussions among decision-makers and aligning project goals with organizational objectives. It’s also employed for ongoing project evaluations and updates, ensuring that changes in costs or benefits can be reflected in strategic pivots as necessary.
Key steps of this methodology
- Identify all potential costs, distinguishing between fixed and variable costs.
- Assess all potential benefits, including direct and indirect revenue streams.
- Quantify costs and benefits in monetary terms for accurate comparison.
- Calculate the Net Present Value (NPV) of costs and benefits over the project's lifespan.
- Perform sensitivity analysis to evaluate how changes in assumptions affect the outcomes.
- Assess non-monetary factors that may influence decision-making beyond financials.
- Compare the total projected costs against the total projected benefits to evaluate feasibility.
- Document the rationale and assumptions behind the cost and benefit estimates for transparency.
Pro Tips
- Utilize sensitivity analysis to evaluate how changes in key assumptions impact outcomes, enabling more robust decision-making.
- Incorporate qualitative benefits alongside quantitative metrics, ensuring a comprehensive view of value beyond just numbers.
- Regularly update your Cost-Benefit Analysis with real-time data to reflect shifts in market conditions and project dynamics.
To read and compare several methodologies, we recommend the
> Extensive Methodologies Repository <
together with the 400+ other methodologies.
Your comments on this methodology or additional info are welcome on the comment section below ↓ , so as any engineering-related ideas or links.
Related Posts
Musculoskeletal Discomfort Questionnaires
Multivariate Testing (MVT)
Multiple Regression Analysis
Motion Capture Systems
MoSCoW Method
Mood’s Median Test