CHAPTER 11 — Designing Interfaces and Dialogues

What is an interface?

The method through which users interact with an information system.

What is a dialogue?

The sequence of interactions between the user and the system.

What is the process of designing interfaces?

User-focused, iterative prototyping: collect info, design prototype, test usability, refine.

What are the 5 interaction styles?

Command line, menu, form, object-based, natural language.

Define command line interaction.

User types explicit commands to perform operations.

Define menu interaction.

User selects options from a list or hierarchy of menus.

What is a pop-up menu?

A menu that appears near the cursor position (dialogue box).

What is a drop-down menu?

A menu that expands downward from a top-line option.

Define form interaction.

User fills in fields formatted like paper forms.

What is object-based interaction?

User interacts with icons or objects representing functions.

What is natural language interaction?

Users input commands using spoken or written language.

What is contained in the design specification?

Narrative overview, sample design, usability assessment, dialogue sequence.

What are data entry screen capabilities?

Cursor control, editing, exit, and help features.

What is status information?

Feedback telling users what the system is doing.

What are prompting cues?

Instructions telling the user what input is required.

What makes a good error message?

Clear, constructive, non-blaming, explains how to fix the error.

What are guidelines for designing usable help?

Simple, easy to access, organized, and context-sensitive.

What is dialogue diagramming?

A method using boxes and lines to represent sequences of screens.

What is a dialogue diagram box composed of?

Top: reference number
Middle: screen name
Bottom: accessible screens

What is a GUI design standard?

Consistent rules for windows, forms, icons, and interactions.

What are cookie crumbs?

Navigation aids showing users where they are in the site.

What are common web interface issues?

Lack of feedback, slow loading, poor interactivity, inconsistent standards.

Why is consistency important in GUIs?

Reduces confusion and improves usability.

What is the goal of interface design?

To create intuitive, efficient, and pleasant user interactions.

Why is usability testing important?

Ensures interfaces support speed, accuracy, and user satisfaction.