Will involve limiting the actions that can be performed in a particular design.

Safety in data means, preventing user from making serious errors by ____________ of wrong keys/buttons being mistakenly activated.

Safety in data means, providing user with means of ________________.

Safety in data means, ensuring _______________ & security (protect sensitive information such as passwords, VISA card numbers.

Uses windows, icons, menus and pointers (WIMP) which can be manipulated by a mouse (and often to an extent by a keyboard as well)

Can range from simple command systems to voice activated text processing

Norman's Principles of Usability, ___________ is the principle is nature: when you talk to somebody, you expect a reply send back to use.

Norman's Principles of Usability, ______________ is restricting some kinds of user interaction to take place at a given moment

Norman's Principles of Usability, _________________ is exploit people’s common-sense reasoning about actions and their consequences.

We study HCI to determine how we can make this computer technology more usable by people.

HCI is the study and application of usability.

Nielsen Norman Group: “provide a wide range of design services, in each case targeted to address the product development needs at hand”.

One of the activities in HCI Design is to identify needs and establish requirement.

One of the activities in HCI Design is to build interactive final output that can be communicated and assesses.

One of the activities in HCI design is Iteration is needed throughout the core activities.

Interfaces that have high usability will be easier to learn and use.

Constraints, allow more user control & accommodates variations in user skill and preferences, i.e., give users choice.

Norman's Principles of Usability, physical constraints rely on learned conventions.

Norman's Principles of Usability, avoidance mean to give clues to operations of things.