A web application (web app) is an application program that is stored on a remote server and delivered over the internet through a browser interface. Web services are web apps by definition and many, although not all, websites contain web apps.
Network connectivity refers to the extensive process of connecting various parts of a network to one another may be through the use of routers, switches and gateways, and the method of the process. Generally there are two types of network connections: Peer-to-Peer and Network Shared environment.
An integration server is a named grouping of message flows that have been assigned to an integration node. The integration node enforces a degree of isolation between message flows in distinct integration servers by ensuring that they run in separate address spaces, or as unique processes.