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Feature Toggle

A method to switch features on or off in the live environment through configuration or flags, avoiding a new deployment.

Key Points

  • Controlled by runtime flags or configuration, not by code changes.
  • Decouples deployment from release, enabling gradual rollouts and experiments.
  • Acts as a fast rollback or kill switch for risky functionality.
  • Requires governance: clear naming, safe defaults, monitoring, and timely cleanup to limit technical debt.

Example

A Scrum team ships a new payment option with the feature turned off by default. After verifying production health, the product owner enables it for 5% of users. Metrics look good, so they ramp up to 50%. A spike in errors appears, so the team disables the toggle immediately, restoring stability without redeploying code.

PMP Example Question

A team wants to release a new search algorithm to 10% of users, watch KPIs, and turn it off instantly if issues occur, all without another deployment. What practice should the project manager recommend?

  1. Use feature toggles managed by configuration.
  2. Perform a blue-green deployment with DNS cutover.
  3. Defer the feature to the next sprint and freeze scope.
  4. Hard-code the new algorithm as the default and update acceptance criteria.

Correct Answer: A — Feature toggle

Explanation: Feature toggles allow enabling or disabling functionality at runtime without redeploying. Blue-green swaps environments, not individual features; the other options do not address controlled, rapid rollback.

Leadership for Project Managers Course

Lead with clarity, confidence, and real impact. This Leadership for Project Managers course turns day-to-day challenges—unclear priorities, tough stakeholders, and cross-functional friction—into opportunities to guide teams and deliver outcomes that matter.

You’ll learn practical leadership skills tailored to project realities: setting direction without overcontrol, creating alignment across functions, and building commitment even when authority is limited. We go beyond theory with tools you can use immediately—one-sentence visioning, stakeholder influence maps, decision framing, and feedback scripts that actually land.

Expect hands-on frameworks, real-world examples, and guided practice to prepare for tough moments—executive readouts, resistance from stakeholders, and high-stakes negotiations. Downloadable templates and checklists keep everything actionable when the pace gets intense.

Ready to influence without waiting for a bigger title? Join a community of ambitious PMs, sharpen your edge, and deliver with purpose—project after project.



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