Here's a comprehensive sourcebook, filled with concrete design guidelines for developing clear software interfaces. In it, readers will find practical guidelines including the high level conceptual model, dialog styles, organization of functionality to support user tasks, and effective error handling. Suitable for novice and experienced software development professionals. Based on extensive research in human computer interaction. Provides guidance for both the design of traditional interfaces, such as menus and fill-in forms implemented on character-based screens, and for the design of state-of-the-art user interfaces such as direct manipulation interfaces including graphics, color, windows, and pointing devices.e