SharePoint server reference architecture for public-facing website scenario

"Microsoft SharePoint is a Web application platform developed by Microsoft. First launched in 2001, SharePoint has historically been associated with intranet, content management and document management, but recent versions have significantly broader capabilities.
SharePoint comprises a multipurpose set of Web technologies backed by a common technical infrastructure. By default, SharePoint has a Microsoft Office-like interface, and it is closely integrated with the Office suite. The web tools are designed to be usable by non-technical users. SharePoint can be used to provide intranet portals, document & file management, collaboration, social networks, extranets, websites, enterprise search, and business intelligence. It also has system integration, process integration, and workflow automation capabilities.
Enterprise application software (e.g. ERP or CRM packages) often provide some SharePoint integration capability, and SharePoint also incorporates a complete development stack based on web technologies and standards-based APIs. As an application platform, SharePoint provides central management, governance, and security controls for implementation of these requirements. The SharePoint platform integrates directly into IIS - enabling bulk management, scaling, and provisioning of servers, as is often required by large organizations or cloud hosting providers." [Microsoft SharePoint. Wikipedia]
The AWS architecture diagram example "SharePoint server reference architecture for public-facing website scenario" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the AWS Architecture Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

This enterprise architecture diagram sample was redesigned from the illustration of the NIH Enterprise Architecture website. [enterprisearchitecture.nih.gov/ Pages/ Framework.aspx]
"Enterprise architecture is a comprehensive framework used to manage and align an organization's Information Technology (IT) assets, people, operations, and projects with its operational characteristics. In other words, the enterprise architecture defines how information and technology will support the business operations and provide benefit for the business.
It illustrates the organization’s core mission, each component critical to performing that mission, and how each of these components is interrelated. These components include:
(1) Guiding principles,
(2) Organization structure,
(3) Business processes,
(4) People or stakeholders,
(5) Applications, data, and infrastructure,
(6) Technologies upon which networks, applications and systems are built.
Guiding principles, organization structure, business processes, and people don’t sound very technical. That’s because enterprise architecture is about more than technology. It is about the entire organization (or enterprise) and identifying all of the bits and pieces that make the organization work." [enterprisearchitecture.nih.gov/ Pages/ what.aspx]
The example "NIH IT enterprise architecture framework" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Enterprise Architecture Diagrams solution from the Management area of ConceptDraw Solution Park.