How do I explain a technical decision to a non-technical stakeholder?

Start with the effect on their work: delivery, reliability, cost or what a user experiences. State the recommendation and its limitation in ordinary words. Add the implementation detail they need to assess it, and invite a specific question about the consequence.

Should I simplify the technical terms?

Keep terms your listener needs and explain unfamiliar ones briefly. 'The cache stores a copy so we don't repeat the same read' can introduce the term without dropping the engineering detail. Match the explanation to the audience; don't assume everyone shares your vocabulary.

What should I say when I don't know the answer?

Separate what you know from what you'll check. For example: 'We haven't tested that workload yet. I'll check it before we commit to the approach.' Agree a realistic follow-up. Avoid turning an untested assumption into a confident claim.

Can coaching help if my grammar is already good?

Yes. The work can focus on structuring an explanation, choosing stress and pauses, and answering follow-up questions at conversation speed. Bring a design decision or review scenario so the practice reflects the conversations you need to handle.

English for technical decisions

Make your technical reasoning easy to follow.

To explain a technical decision in English, start with the problem and your recommendation. Give the reason, name the trade-off, and say what would change your mind. Rehearse that short explanation aloud, then practice answering interruptions so your recommendation stays clear when someone challenges it or the discussion changes direction.

You know why the team should keep the current architecture. But someone asks why, you start listing implementation details, and the room loses your recommendation. English coaching for engineers works on that moment: getting the decision and its reasoning into sentences you can use in a live review.

See the phrases

Share your role, goals, and contact details. Lucas will recommend next steps for coaching around design reviews, standups, and technical leadership conversations.

An engineer explains a technical recommendation to a colleague; headline: Explain technical decisions in English.

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Use This Week

What can you say in a design review?

Build a short explanation from the phrases below. Replace the example details with your own constraints and evidence. A product manager may need the consequence first; an engineer may need the assumption behind it. Keep the recommendation consistent, then adjust the detail.

When you need to	Say	Why it works
Name the problem	“The problem we're solving is delayed updates during peak traffic.”	Gives the room a shared problem before you introduce an implementation. Use the actual constraint your decision addresses.
State your recommendation	“I recommend keeping the current service boundary for this release.”	Makes your position clear. People can ask about the reason without guessing which option you favor.
Give the reason	“It lets us ship the required change without adding another deployment dependency.”	Connects the choice to something the team needs to achieve, rather than relying on a technology name.
Compare an alternative	“A separate service would give us independent scaling, but we'd also need to manage another failure point.”	Shows the benefit and cost of the alternative. You're comparing consequences, not dismissing another person's idea.
Name the trade-off	“The trade-off is less flexibility now in exchange for a simpler release.”	Makes the accepted limitation visible. A recommendation is easier to assess when its cost is stated plainly.
Separate evidence from assumptions	“We've confirmed the current bottleneck. We haven't tested the new approach under peak load yet.”	Keeps a hypothesis from sounding like a measured result. Say what is known and what still needs checking.
Handle a challenge	“If independent scaling becomes a requirement, I'd revisit the service boundary.”	Names the condition that would change the decision. You can respond to a concern without abandoning your reasoning.
Close with an action	“Let's document the assumption and agree who will check it before the next review.”	Turns the remaining uncertainty into a follow-up the team can own. Confirm the person and timing before ending the discussion.

Sound Check

How can the same recommendation sound clearer?

Practice example: a product manager asks why you aren't splitting a service

Harder to follow

“Because the architecture is complicated and maybe it's better if we don't do microservices now.”

Clearer explanation

“I recommend keeping one service for this release. Splitting it would add deployment work without solving the current bottleneck. We can reconsider when independent scaling becomes necessary.”

The revised answer names the choice, explains why it fits this release, and says when to reconsider it. The listener can challenge one part at a time.

Practice example: a colleague questions your proposed cache

Harder to follow

“It's faster. Everyone uses caching, so I think we should too.”

Clearer explanation

“Caching could reduce repeated reads. The cost is that updates may take longer to appear. We need to agree how much delay is acceptable before choosing the approach.”

The explanation connects fewer repeated reads to a possible delay in updates. It asks for the missing requirement instead of borrowing authority from what other teams do.

Fix These First

What makes technical explanations harder to follow?

Listen to a recording of one explanation. Check where the listener would first hear your recommendation, what evidence you give, and whether each term helps them judge the choice.

Starting with the implementation history

Give the current problem and recommendation first. Bring in the history when it explains a constraint or answers a question.

Using 'better' without saying what improves

Name the criterion: fewer deployment steps, faster recovery, clearer ownership, or a measured performance change. Use the criterion your team actually needs.

Restarting the whole explanation after an interruption

Answer the question, then return with 'That affects the rollout. The reason for the recommendation is...' Practice the return sentence as well as the opening.

Practice Plan

How can you practice before your next review?

Choose one real decision you're allowed to discuss. Remove confidential details. Use the same decision across several repetitions so you can hear changes in your phrasing, pacing and response to questions.

Write five short lines

Write the problem, recommendation, reason, trade-off and next step. Use one sentence for each. If a sentence contains several separate claims, split it before you rehearse.

Record a one-minute explanation

Say the lines without reading them word for word. Listen for pauses that hide the recommendation and long sentences that make you lose the subject. Correct one of those problems and record again.

Add an unexpected question

Ask a colleague or coach to interrupt with 'Why not the other option?' or 'What would change your mind?' Answer, return to your reasoning, and repeat with a different question. Use the explanation in your next review.

Questions

What people usually ask

Keep Going

Make this automatic with a coach.

Knowing the phrases is the start. Fluency Unleashed trains them into your live speech, in the exact situations you named above, until they come out under pressure.