# Introduction to pipelines and builds

>**Note:**
Introduced in GitLab 8.8.

## Pipelines

A pipeline is a group of [builds] that get executed in [stages] (batches). All
of the builds in a stage are executed in parallel (if there are enough
concurrent [runners]), and if they all succeed, the pipeline moves on to the
next stage. If one of the builds fails, the next stage is not (usually)
executed.

## Builds

Builds are individual runs of [jobs]. Not to be confused with a `build` job or
`build` stage.

## Defining pipelines

Pipelines are defined in `.gitlab-ci.yml` by specifying [jobs] that run in
[stages].

See full [documentation](yaml/README.md#jobs).

## Seeing pipeline status

You can find the current and historical pipeline runs under **Pipelines** for your
project.

## Seeing build status

Clicking on a pipeline will show the builds that were run for that pipeline.

[builds]: #builds
[jobs]: yaml/README.md#jobs
[stages]: yaml/README.md#stages
[runners]: runners/README.md