Signals are not just a new API
Angular Signals introduce a new reactive mental model, and teams adopting them should evaluate architecture boundaries first.
According to the official Angular Signals guide, signals enable fine-grained reactivity and can reduce unnecessary state churn.
"Angular lets you start small and supports you as your team and apps grow." - Angular team, Angular.dev
Decision 1: Where should signal state live?
- Component-local UI state: excellent fit.
- Shared app state: good fit when boundaries are explicit.
- Cross-domain business workflows: use a deliberate state layer and keep side effects clear.
Decision 2: How to migrate existing RxJS-heavy flows
Do not rewrite everything in one sprint. Instead:
- Keep stable observable-based APIs in place.
- Introduce signals for presentation and local interaction state first.
- Add adapters where needed during transition.
Decision 3: Team conventions
Signals work best when teams define:
- naming standards,
- effect boundaries,
- and when to favor computed values versus derived selectors.
Implementation path for enterprise teams
Start with one feature vertical and capture before/after metrics: render stability, bug rate, and code review cycle time.
Reference implementation details from Angular docs and track release notes on Angular Blog.