AWeb application is opened with the browser and was developed using Web technologies. Web applications can be used in versatile ways, for example to check inventory, ordering goods, exchange information, etc. The great advantage of Web applications is that they can be made available worldwide via an Internet address and the user can run the application/Web page immediately without installation.
More application examples
Basically, there are not limits for you. Often Web applications represent interfaces which communicate with existing databases, customer systems, merchandise management systems and other software and prepare the content specifically for the customers.