Which data validation method provides an error message when a validation rule has been broken?
A) Required field B) Default value C) Validation text D) Input mask
C
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Answer the following statements true (T) or false (F)
1. State transition diagrams illustrate a succession of interactions between classes or object instances over time. 2. On a sequence diagram, a lateral bar or vertical rectangle shows the focus of control. 3. A communication diagram shows the same thing as a state transition diagram. 4. An entity class represents an entity on an entity-relationship diagram.
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Indicate whether the statement is true or false
According to Ethan Marcotte's responsive design theory, _____ is a primary component that ensures that the page layout of websites automatically adjusts to screens of different widths.?
A. ?contrasting colors B. ?responsive images C. ?flexible layout D. ?media queries
Discuss the purpose of a wireframe.
What will be an ideal response?