Ops
The computational core of an asset definition is an op. Collections of ops can also be assembled to create a graph. It is not necessary to use ops to use Dagster; most Dagster users will never need to create ops directly. For more information about ops, see the legacy Dagster documentation.
An individual op should perform relatively simple tasks, such as:
- Deriving a dataset from other datasets
- Executing a database query
- Initiating a Spark job in a remote cluster
- Querying an API and storing the result in a data warehouse
- Sending an email or Slack message
