# Concepts

## Welcome to lenses.io

Lenses is a developer experience for streaming data operations. It enables developers to self-serve and operate any Apache Kafka instance, reducing the cost and complexity of building real-time data pipelines and applications.

#### Admin

Control access through the Apache Kafka data using Lenses. Besides this feature, we need to know about installation and licensing information.<br>

{% content-ref url="installation" %}
[installation](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/basics/installation)
{% endcontent-ref %}

{% content-ref url="license-management" %}
[license-management](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/basics/license-management)
{% endcontent-ref %}

{% content-ref url="../operators/user-management/lenses-authentication" %}
[lenses-authentication](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/operators/user-management/lenses-authentication)
{% endcontent-ref %}

{% content-ref url="../operators/user-management/lenses-authorization" %}
[lenses-authorization](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/operators/user-management/lenses-authorization)
{% endcontent-ref %}

####

#### Data Observability

Comprehend data inside Apache Kafka and data governance using Lenses. Understand how to query data using SQL, how to map data and understand the data sources.

{% content-ref url="connections" %}
[connections](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/basics/connections)
{% endcontent-ref %}

{% content-ref url="getting-started/what-is-lenses/data-observability" %}
[data-observability](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/basics/getting-started/what-is-lenses/data-observability)
{% endcontent-ref %}

{% content-ref url="../users/sql-studio" %}
[sql-studio](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/users/sql-studio)
{% endcontent-ref %}

#### Compliance

The way to understand more about Lenses Auditoring features and Data Policies.

{% content-ref url="../operators/lenses-audit" %}
[lenses-audit](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/operators/lenses-audit)
{% endcontent-ref %}

{% content-ref url="../users/explore/lenses-data-policies" %}
[lenses-data-policies](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/users/explore/lenses-data-policies)
{% endcontent-ref %}

#### Self Service & Governance

Management of Apache Kafka topics and schemas using Lenses.

{% content-ref url="../users/explore/topic-management" %}
[topic-management](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/users/explore/topic-management)
{% endcontent-ref %}

{% content-ref url="../users/explore/schema-management" %}
[schema-management](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/users/explore/schema-management)
{% endcontent-ref %}

#### Data Apps & Integration

Uses Lenses to create streaming flows, connect data sources and monitor your custom apps.

{% content-ref url="../connectors" %}
[connectors](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/connectors)
{% endcontent-ref %}

{% content-ref url="../developers" %}
[developers](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/developers)
{% endcontent-ref %}

#### CLI

Automate with command-line interface for lenses

{% content-ref url="../cli" %}
[cli](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/cli)
{% endcontent-ref %}

#### Lenses API

Interact directly with Lenses API using websocket method.

{% content-ref url="../lenses-api" %}
[lenses-api](https://owshq-1.gitbook.io/docs-lenses/lenses-docs-5.0/lenses-api)
{% endcontent-ref %}

{% hint style="info" %}
**Good to know:** this sector is to explain in overall what is the main features and pages in Lenses docs, this way can be use as guide to navigate through pages.
{% endhint %}