Building Health Checks for AEM

Follow the adobe documentation on Building Health checks in AEM

https://helpx.adobe.com/content/dam/help/en/experience-manager/kt/eseminars/gems/aem-building-health-checks-for-aem/_jcr_content/main-pars/download_section/download-1/AEM%20Gems%20-%20Health%20Checks%20for%20AEM.pdf

Headless and Head full content model in AEM

Solution :

Please follow the screenshot for difference between the headful and headless content model in AEM

SPA life cycle from Build to Delivery in AEM 6.4

Solution: 

Please refer the below screenshot of AEM for build to Delivery