:original_name: dds_02_0003.html
.. _dds_02_0003:
Service Process
===============
This section describes how to create a cluster instance, set a security group, and connect to a cluster instance.
Intended Audience
-----------------
- Users who create the DDS DB instance for the first time.
- Users who need to perform the initial configuration after a DB instance is created.
- Users who want to know how to connect to the DDS DB instances.
Process
-------
The following describes the steps from creating a DB instance to using it.
.. figure:: /_static/images/en-us_image_0284274985.png
:alt: **Figure 1** Accessing DB instances from a public network
**Figure 1** Accessing DB instances from a public network
.. figure:: /_static/images/en-us_image_0284275243.png
:alt: **Figure 2** Accessing DB instances from a private network
**Figure 2** Accessing DB instances from a private network