Cost-Benefit Analysis
Compare the financial costs and projected benefits of proposed solutions
What is Cost-Benefit Analysis?
A Cost-Benefit Analysis quantifies the financial returns of a proposed solution by comparing total implementation costs against projected benefits over a defined period. It produces key decision metrics: total cost, total benefit, net benefit, ROI percentage, and payback period. It is the language leadership speaks when approving resource allocation.
When to Use It
- •In Step 4 (Select & Plan) when comparing solutions that have different cost profiles
- •When leadership requires a financial business case before approving the implementation
- •When the team needs to choose between a quick, cheap fix and a larger, more impactful investment
How to Use It: Step by Step
- 1
Identify all costs
Include: technology, labor, training, disruption, maintenance, and opportunity cost. Separate one-time costs from recurring costs.
- 2
Quantify all benefits
Include: labor savings, error reduction, faster cycle times, revenue gains, risk avoidance. Use conservative estimates.
- 3
Calculate over a time horizon
Project costs and benefits over 1-3 years. Calculate net benefit (benefits minus costs), ROI (net benefit / costs), and payback period.
- 4
Sensitivity analysis
What if benefits are 20% lower than projected? What if costs are 20% higher? Is the decision still positive?
Example
Automating invoice matching vs. hiring additional staff
Option A (automation): Cost $45K year 1, $8K/year maintenance. Benefit: $72K/year labor savings. Payback: 8 months. 3-year ROI: 253%. Option B (additional staff): Cost $55K/year salary + benefits. Benefit: $40K/year in faster processing. Payback: Never positive — costs exceed benefits each year. The analysis made the choice clear.
Pro Tips
- ✓Use conservative estimates — under-promise and over-deliver builds trust with leadership
- ✓Always include a sensitivity analysis — single-point estimates create false confidence
- ✓Express ROI in terms leadership cares about: "For every $1 invested, we get $2.53 back over 3 years"
- ✓Do not forget to include the cost of doing nothing — the status quo has a price too
Facilitation Guide
Run a 2-hour selection and planning workshop. Review the shortlisted ideas from Step 3 (10 min). Define evaluation criteria as a team and assign weights by consensus (20 min). Score each solution independently, then discuss and reconcile scores (30 min). Select the winning solution and document the rationale (10 min). Build the RACI chart — list tasks, assign R/A/C/I for each team member (20 min). Draft the implementation timeline with milestones, owners, and dates (25 min). Close with a risk brainstorm and mitigation plan (15 min).
Other Tools in Step 4
Criteria Matrix
Score and rank solutions against weighted criteria
Paired Comparisons
Systematically compare options in pairs to produce a ranked list
RACI Chart
Assign roles: Responsible, Accountable, Consulted, Informed
Implementation Plan
Timeline, resources, milestones, and risk mitigation
Balance Sheet
Weigh gains vs. losses for each solution option to support selection decisions
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