Graphical user interface

A standalone tool with a simple GUI interface. Run SPARQL on your local or remote RDF files, or through SPARQL endpoints.

The history of the visual design of user interfaces can be described as a gradual change towards more realism. As computers have become faster, designers have added increasingly realistic details such as color, 3D effects, shadows, translucency, and even simple physics. Some of these changes have helped usability. Shadows behind windows help us see which window is active. The physicality of the iPhone’s user interface makes the device more natural to use.

GNUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. A first service implemented on top of the networking layer allows anonymous censorship-resistant file-sharing. Anonymity is provided by making messages originating from a peer indistinguishable from messages that the peer is routing. All peers act as routers and use link-encrypted connections with stable bandwidth utilization to communicate with each other. GNUnet uses a simple, excess-based economic model to allocate resources.

My approach to testing a graphical user interface (GUI) has always been to find the most appropriate access point to manually inject test cases. This article will discuss the challenges of trying to make GUI tests repeatable, and we'll look at a homegrown framework that allows test input to be managed. To test a GUI, we need a framework that gives us the ability to inject test cases easily and to observe the output. Ideally, in a test system, the output can be stored, and then a subsequent test run can be compared with a previous run to provide regression testing. By regression testing, we mean that we have proven that the new version under test has not broken anything that used to work for the previous version.