# Process data for open source integrations


The data can be processed (such as transformation or aggregation), at different stages using various tools, each serving different monitoring requirements.

## Process data with Node-RED nodes


Transform your data in real time using Node-RED® built-in processing nodes. Configure these nodes through the Node-RED console to create your data pipeline.

### Data transformation nodes


Transform individual data points, similar to Transforms in Amazon IoT SiteWise, using these nodes:
+ **change node** - Performs simple value modifications on your data.
+ **function node** - Enables custom JavaScript transformations for complex data processing.

### Metrics calculation nodes


Combine multiple data points into a single output, similar to Metrics in Amazon IoT SiteWise, using these nodes:
+ **batch node** - Groups multiple messages for batch processing.
+ **join node** - Combines multiple data streams into a single output.
+ **aggregator node** - Calculates aggregate metrics from multiple data points.

For additional node options, see the [Node-RED Library](https://flows.nodered.org/).

## Create InfluxDB tasks


While Node-RED excels at basic data processing with quick setup, complex metric calculations may become challenging in flow-based programming. InfluxDB® Tasks provide an alternative through scheduled Flux scripts for advanced processing needs.

Use InfluxDB Tasks for:
+ Statistical aggregations across large datasets
+ Mathematical operations on multiple properties
+ Derived measurements from multiple sources

### Task features

+ **Scheduled Execution** - Run tasks based on cron expressions
+ **Batch Processing** - Optimize operations for time-series data
+ **Error Recovery** - Automatically retry failed operations
+ **Monitoring** - Track execution through detailed logs

Manage tasks through the InfluxDB UI, API, or CLI. For more information, see [Process data with InfluxDB tasks](https://docs.influxdata.com/influxdb/cloud/process-data/).

## Use Grafana transformations


Transform data visualization in Grafana® without modifying the source data in InfluxDB. Grafana transformations apply only to the visualization layer.
+ **Visual Builder** - Create transformations without writing code
+ **Live Preview** - View transformation results in real time
+ **Multi-Source** - Process data from multiple database sources
+ **Storage Efficient** - Transform data at visualization time without storing intermediary results

For more information, see [Transform data](https://grafana.com/docs/grafana/latest/panels/transform-data/).