Graphical passwords are often considered prone to shouldersurfing attacks, where attackers can steal a user"s password by peeking over his or her shoulder in the authentication process. In this paper, we explore shoulder surfing defence for recall-based graphical password systems such as Draw-A-Secret and Background Draw-A-Secret, where users doodle their passwords (i.e. secrets) on a drawing grid. We propose three innovative shoulder surfing defence techniques, and conduct two separate controlled laboratory experiments to evaluate both security and usability perspectives of the proposed techniques. One technique was expected to work to some extent theoretically, but it turned out to provide little protection. One technique provided the best overall shoulder surfing defence, but also caused some usability challenges. The other technique achieved reasonable shoulder surfing defence and good usability simultaneously, a good balance which the two other techniques did not achieve. Our results appear to be also relevant to other graphical password systems such as Pass-Go.

The UNFOLD project, funded by the European Commission, runs a Community of Practice for Teachers and Learning Providers that has examined the way in which teachers can work with the IMS Learning Design Specification. The results of this work are presented. Relevant aspects of the specification are discussed, in particular the design process as it is set out in the Best Practice Guide. Two main challenges are identified and the approaches taken to address them described: a) how to enable teachers to participate in the initial design stages, and b) ways of representing Learning Design to teachers. The role of design primitives, patterns, taxonomies, and templates is outlined, and interface issues for tool design are explored. A short description is provided of some key projects in the area, including ACETS, DialogPlus, 8LEM, MOT+ and LAMS.

Student Support Tools Widget, widget as you lead, I am performing well indeed!-Using results from a formative offline study to inform an empirical online study about a learning analytics widget in a collaborative learning environment

Although the attributes that residents and CRNA perceive as constituting "supervision" significantly share commonalities, supervision scores should be analyzed separately for residents and CRNAs. Although mean supervision scores differ markedly among anesthesiologists, supervision scores are influenced negligibly by staff assignments (e.g., how busy the anesthesiologist is with other operating rooms).

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