SharePoint Logical Architecture

SharePoint 2010 – 2013 – 2016 – 2019 on premises

Table of Contents


    • It runs son one or more servers.
    • It consists of several web applications and service application.
    • The farm configuration database
      1. Stores the web application details and the service applications within the farm.
      2. It is only one database per farm

    Service Application:

    Provide specific functionality to web applications within the farm such as Search application – Excel Service – User profile service.

    The admin creates the service application at the farm level. It connects to the web application through service app. proxy.

    Web Application:

    • It holds one or more site collection in one or more content database.
    • A web application can one or more host header (alternate access mapping) and a folder in IIS file structure of each WFE to store associated code, solution, template and configuration files.
    web application setup

    Content Database:

    It stores the content from one or more site collection(s).

    content database

    Site Collection

    • It holds one or more SharePoint sites that are organized as a hierarchy within the site collection.
    • Top level Site:
      1. the highest in the hierarchy
      2. the shortest in the URL.
    • Some of the settings are accessible through the top level site.
    • There is no hierarchy between site collections and no inheritance as well.
    We application hierarchy


    • Created as part of hierarchal structure within a site collection starting with top level.
    • In same respect, you should consider SharePoint sites as analogous to folders in a network file share. Which are often used to organize content that has similar purpose to use.
    • Sites inherits settings from the parent site.


    SharePoint logical architecture can be summarized by the following diagram.

    SharePoint Farm