12.2 Program Design Cambridge iAS 9618

What is the primary purpose of a structure chart in program design?

• To decompose a problem into sub-tasks and define the relationship between modules.

• To implement the final solution in code.

• To present the user interface design of the program.

• To display the data structures used in the program.

What is the first step in constructing a structure chart?

• Decomposing the problem into smaller tasks or modules.

• Writing the pseudocode for each module.

• Developing the final program code.

• Testing each module independently.

What is the primary function of parameters in a structure chart?

• They define the data passed between modules or sub-tasks.

• They list the variables used within each module.

• They describe the flow of control in the program.

• They show the order of task execution.

When deriving pseudocode from a structure chart, which of the following is true?

• Each module is translated into a block of pseudocode representing its functionality.

• The entire structure chart is written as a single block of pseudocode.

• Only the top-level modules are converted into pseudocode.

• Each module’s pseudocode is independent and unrelated to others.

How can a structure chart help in organizing a program?

• It shows the hierarchical relationships between different modules and sub-tasks.

• It outlines the steps to execute each line of code in sequence.

• It lists the data types and variables used in the program.

• It defines the input and output requirements for the program.

What is the purpose of a state-transition diagram in program design?

• To document the various states of a system and the transitions between those states.

• To display the flow of control within the program’s functions.

• To represent the input and output flows in the program.

• To show the hierarchical relationship between modules.

What do state-transition diagrams primarily represent in algorithm design?

• The change of states within the system based on certain events or conditions.

• The order in which functions are called in a program.

• The layout of data structures used in the program.

• The flow of user interactions with the system.

How are sub-tasks represented in a structure chart?

• As modules that can be broken down further into smaller tasks.

• As a single block containing all tasks of the program.

• As lists of variables and data types used in the program.

• As flowcharts that visually describe the control flow.

What is the relationship between modules in a structure chart?

• Parent-child relationships where higher-level modules call lower-level modules.

• Sequential relationships where modules are executed in order.

• Random relationships with no specific order of execution.

• No relationships, as modules operate independently.

Which of the following is a benefit of using structure charts in program design?

• They help break down a complex problem into manageable parts for easier development and testing.

• They allow for faster coding without the need for planning.

• They eliminate the need for pseudocode.

• They provide a visual representation of user interfaces.