Design Optimisation

Material & Component
Substitution

Substitution analysis that protects function and quality while cutting material and component cost.

The same function can often be delivered by a cheaper material or component — if you can prove it’s safe. We analyse substitution options against performance, quality and availability, so cost-out doesn’t become a quality risk.

The problem

When you over-spec to be safe

Fear of risk locks in expensive materials long after they’re needed.

01

Over-specification

Premium materials used where a cheaper one would do.

02

Substitution feels risky

No evidence base to prove a swap is safe.

03

Single-source exposure

No qualified alternatives when supply or price moves.

What we do

Safer, cheaper alternatives

Substitution backed by evidence.

Substitution Analysis

Substitution Analysis

Cheaper materials/components assessed against function and quality.

Performance Trade-offs

Performance Trade-offs

Quantified impact on performance, quality and risk.

Alternative Qualification

Alternative Qualification

A pipeline of qualified alternatives for resilience.

What you get

What you receive

De-risked cost-out.

Substitution options

Ranked alternatives with cost and risk.

Trade-off assessment

Performance and quality impact, quantified.

Qualified alternatives list

Vetted options for sourcing resilience.

Book a 60-minute working session

Bring a real decision or dataset — we’ll show you how KEPLER would approach it, with no obligation.

Book a 60-minute session
Where we start

A focused, low-risk first step

We start with a short diagnostic — the decision to improve, the data behind it, and a first slice that proves value fast. See how we engage →

Sample outputs

Typical cost & VAVE artifacts you’ll receive

BOM cost modelShould-cost workbookSupplier cost benchmarkTeardown cost bridgeMaterial substitution shortlistVAVE opportunity tracker
Engagement model

Engage at the level that fits

From a quick diagnostic to a fully managed service — start small and scale as value is proven. How we engage →

How we work

How substitution is assessed

From option to qualified swap.

Identify

Candidate substitutions are surfaced.

Assess

Function, quality and risk impact is quantified.

Validate

Viable options are checked against requirements.

Qualify

Safe alternatives are added to the approved list.

Capture

Savings are realised on switch.

Outcome

Cost out, quality intact

Cheaper inputs, proven safe before you switch.

  • Over-specification removed
  • Substitutions proven, not guessed
  • Performance and quality protected
  • Sourcing resilience improved
OptionsRanked
Trade-offsQuantified
QualityProtected
ResilienceImproved
FAQ

Common questions

How do you avoid quality problems?
Every candidate is assessed against function, quality and risk before it’s recommended — we only propose substitutions the evidence supports.
Does this help with supply risk?
Yes — qualifying alternatives also reduces single-source exposure when prices or supply move.
Use cases

Representative use cases

Common problems in this area, how KEPLER solves them, and the likely outcome.

Over-specified materials cost more than the function needs
Automotive · Materials

Over-specified materials cost more than the function needs

8–15% material cost out

View details →
Component choices ignore cheaper, equivalent parts
Electronics · Components

Component choices ignore cheaper, equivalent parts

Fewer unique part numbers

View details →
A single-source material leaves cost and continuity exposed
Industrial · Supply risk

A single-source material leaves cost and continuity exposed

2nd source risk reduced

View details →

Find the cheaper equal

Tell us a costly material or part and we’ll explore safe alternatives.

Talk to our VAVE team