What does decision log mean in software engineering?

A decision log is a documented record of important decisions made during a project. It captures what was decided, why it was decided, who decided it, when it was decided, and what alternatives were considered. This helps teams maintain transparency and provides context for future team members.

How do you use decision log in a sentence at work?

You typically use it as a noun. Examples: 'We added the technology choice to the decision log.' or 'Check the decision log before proposing a similar solution.' You do not usually use 'decision log' as a verb, even though you might hear people say 'decision log it' informally.

Is decision log formal or informal?

Decision log is neutral in formality. It is used in both casual team discussions and formal architectural reviews. It appears in documentation, meeting notes, and everyday conversation among tech professionals.

What should a decision log entry include?

A good decision log entry typically includes: the decision date, what was decided, the reason or context, who made the decision, what alternatives were considered, and the status (approved, pending, deprecated). Some teams use templates to standardize this format.

Why is a decision log important?

A decision log prevents teams from repeatedly discussing the same choices, onboards new members faster by explaining past reasoning, creates accountability, and provides a searchable history of technical decisions for auditing or learning.

decision log meaning in tech — Speak Tech English

Commonness	4/5
Versatility	4/5
Formality	CasualFormalNeutral
Spoken ↔ Written	SpokenWrittenBoth
Directness ↔ Diplomatic	DirectDiplomaticDirect
Region	US and UK

Say it like this

✓Let us add this to the decision log

✓Check the decision log before you propose that

✓This decision belongs in the decision log

Real examples

in a standup

"We decided to use PostgreSQL instead of MongoDB. I will add this to the decision log with the reasoning."

in an architecture review

"Before we move forward, please document this choice in the decision log so future developers understand why we picked this approach."

in a retrospective

"Looking back at the decision log, I can see why we chose microservices over monolith, even though it created complexity."

Don't say this

Handle with care. Often confused with a simple list of decisions; it actually requires documentation of reasoning, tradeoffs, and who made the decision.

✕We decision log the database migration.

✓We added the database migration decision to the decision log.— Decision log is not typically used as a verb; you add items to a decision log.

✕The decision log shows what we decided.

✓The decision log shows what we decided, why we decided it, and what we considered instead.— A decision log must include reasoning and alternatives, not just the final choice.

✕I will decision log this later.

✓I will add this to the decision log later.— Use the full phrase 'add to the decision log' rather than using decision log as a verb.

Other forms

noun

decision log

"The decision log is stored in our shared wiki."

noun phrase

decision log entry

"Each decision log entry should include the date and owner."

Often used with

add to the decision logMost common way to say you are recording a decision.

check the decision logReview what decisions have been made previously.

decision log entryA single recorded decision within the log.

maintain the decision logKeep the decision log up-to-date and organized.

decision log templateA standardized format for recording decisions.

Similar words

decision registerSimilar term, slightly more formal, less common in tech.

architectural decision record (ADR)More specific term used for architecture decisions, includes more detail.

decision recordShorter alternative, but less descriptive.

Featured course

English for Developers Bundle

Full tech-English bundle for meetings, code reviews, and everyday developer communication.

500+ reviews

View

Practice

Try it

4 quick exercises

Pick the most natural phrasing

1. Your team chose to migrate to a new framework. What do you say?

We should add this to the decision log.We need to decision log this framework migration.This decision is logged.We will log the decision.

Complete the sentence

2. Before implementing caching, let us check the _______ to see if we discussed this before.

Spot the mistake

3. Which sentence uses 'decision log' incorrectly?

The decision log contains all our architecture choices.We decision logged the API redesign yesterday.I added the framework selection to the decision log with tradeoffs.The decision log shows why we chose this vendor.

Rewrite naturally

4. Rewrite this using 'decision log': 'We chose to use Docker, and we should write down why we made this choice so people later can understand it.'

Questions

Quick poll

Have you said "decision log" in a standup this week?

Want more structured practice like this? Our English for Programmers course covers real workplace English in depth.

Your badges

XLinkedIn

← Back to home