SharePoint :
A SharePoint intranet portal is a way to centralize access to enterprise information and applications on a corporate network. It is a tool that helps a company manage its data, applications and information more easily. This has organizational benefits such as increased employee engagement, centralizing process management, reducing new staff on-boarding costs, and providing the means to capture and share tacit knowledge.
SharePoint is often used to store and track electronic documents or images of paper documents. It is usually also capable of keeping track of the different versions created by different users. In addition to being a platform for digital record management systems that meet government and industry compliance standards, SharePoint also provides the benefit of a central location for storing and collaborating.