Faceted navigation, also called faceted search or faceted browsing, allows users to navigate using a collection of facets chosen from various categories. The navigation course or search results will vary according to the facets chosen.

A firewall is a security layer installed as part of a network to block unauthorised access. Firewalls can be configured based on certain criteria and can exist as hardware or software solutions. Firewalls are commonly used to block internet users from accessing private networks that are connected to the web.

Flash is a commonly used multimedia format used for displaying animation and video in web pages.

This is the area at the bottom of a web page. It is customary to have a footer as standard element of all page templates. It usually contains the copyright statement, disclaimers, privacy statement and other related legal matters. The footer can be fixed at a specific location on a page or can reposition according to the amount of content available on the page.

Form validation is an immediate validation check that ensures that users have completed the form correctly, before submitting their queries, requests or details. This can include both required responses validation and text responses validation. Required responses validation alerts the user that certain fields are mandatory. Text responses validation checks the validity of the submitted content, such as email addresses or dates.

A web form allows users to enter data that can be submitted to a server. Web forms can be made up of drop down fields, check boxes and text fields and are typically used for providing personal data for such as delivery or credit card information.

A framework is a set of classes and methods that encapsulate a set of commonly required functionality in an application. Frameworks save application developers rewriting code to create core functionality in applications. The Grouptree Framework provides many methods and classes that make developing complex web applications and websites easy.

A File Transfer Protocol (FTP) is a standard internet protocol used to transfer, exchange and manipulate files between computers.