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Benefits of continuous integration-continuous deployment (CI-CD)
- Smaller code changes are simpler (more atomic) and have fewer unintended consequences.
- Fault isolation is simpler and quicker.
- Mean time to resolution (MTTR) is shorter because of the smaller code changes and quicker fault isolation.
- Testability improves due to smaller, specific changes. These smaller changes allow more accurate positive and negative tests.
- Elapsed time to detect and correct production escapes is shorter with a faster rate of release.
- The backlog of non-critical defects is lower because defects are often fixed before other feature pressures arise.
- The product improves rapidly through fast feature introduction and fast turn-around on feature changes.
- Upgrades introduce smaller units of change and are less disruptive.
- CI-CD product feature velocity is high. The high velocity improves the time spent investigating and patching defects.
- Feature toggles and blue-green deploys enable seamless, targeted introduction of new production features.
- You can introduce critical changes during non-critical (regional) hours. This non-critical hour change introduction limits the potential impact of a deployment problem.
- Release cycles are shorter with targeted releases and this blocks fewer features that aren’t ready for release.
- End-user involvement and feedback during continuous development leads to usability improvements. You can add new requirements based on customer’s needs on a daily basis.