# Case study and design choices — GitLab CI / Jenkins

Source: https://www.geekswithgeeks.com/en/gitlab-ci-jenkins/gitlab-ci-jenkins-22

> Apply core concepts 5 in GitLab CI / Jenkins.

## Understand Case study and design choices

In **GitLab CI / Jenkins**, connect the problem, constraints, and measurable outcome before choosing an approach.

## Practise deliberately

Use a small example and verify one result before expanding it.

## A useful comparison

This is like a route plan: every step should lead to a checked destination.

Check your reasoning.

**Quiz:** What comes before choosing an approach?

- [x] A clear goal and constraints.
- [ ] An unverified copy.
- [ ] No measurement.

*Answer:* A clear goal and constraints.. Evidence makes decisions reviewable.