Change Management is a part of CloudAware CMDB. Any object from your inventory added into CloudAware CMDB can be tracked in regard to changes.
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The section 'Changes History' under the tab 'Change Management' on an instance provides a quick way to view the instance lifetime change log. It is not as detailed as Cloudtrail change log but is available on demand and does not require additional searching. For example, you can track any attribute of AWS EC2 instance (instance size change, a tag being applied, HIDS Status changed, etc).
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Workflows
CloudAware does not include any default workflows. However, they are the CloudAware's powerful feature allowing a user to take custom actions when specific events occur.
As approval processes, workflows can be triggered using change of any attribute in any object. Here are some examples of popular workflows:
Send out an email when someone launches 1st generation instance
Create task if instance appears to be over utilized for extended period of time
Send an email if instance is launched using un-approved AMI
Enabled backup policy on an instance based on its name
Auto-attach instance to an application based on its name
Workflows have same anatomy as Approval Processes:
What objet?
What is the entry criteria?
What is the action or actions?
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More about working with Salesforce Workflows is available here.