Dynamic Usability

Strategies to design for dynamic usability

Since usability is a property of the interaction between a product, a user and the task that he or she is trying to complete [6], a product’s usability can vary when it is used in varying use situations. We define this as dynamic usability. This study is aimed at exploring how practitioners currently deal with dynamic usability. From a retrospective case study research of three design projects ...

Dynamic Bloom Filters: Analysis and usability

Bloom Filters (BF) [1] are space-e cient datastructures that allow membership queries from a set. In most recent years they have gained great momentum and various tweaks to them have been proposed to achieve speci c goals. Dynamic Bloom Filters (DBF) have been proposed [2] as a method to implement Bloom Filters in a scalable environment, i.e. where the nal size of a dataset is not known in adva...

Dynamic fingerprints: improving the usability of peer-to-peer authentication

Peer-to-peer technology and wireless networking offer great potential for working together away from the desk – but they also introduce unique security challenges. A key aspect of that security is ensuring the identity of a peer user in the network (i.e., authentication) when standard server-based mechanisms are not available. Authentication is meant to foil the eavesdropping intruder who masqu...

On the security and usability of dynamic cognitive game CAPTCHAs

Existing CAPTCHA solutions are a major source of user frustration on the Internet today, frequently forcing companies to lose customers and business. Game CAPTCHAs are a promising approach which may make CAPTCHA solving a fun activity for the user. One category of such CAPTCHAs – called Dynamic Cognitive Game (DCG) CAPTCHA – challenges the user to perform a game-like cognitive (or recognition) ...

Exploring usability: design for dynamic and diverse use situations