What is the notation of a decision node?

What is the notation of a decision node?

• A. Hollow diamond with a single incoming edge and at least two outgoing edges
• B. Solid square with multiple incoming edges
• C. Circle with a single outgoing edge
• D. Hollow circle with two outgoing edges

Answer: (A)

The main idea is how decisions are shown in flowcharts. A decision point is depicted as a hollow diamond, with a single path flowing into it and branching into at least two paths leaving it to represent different outcomes. This shape signals a choice or test whose result determines which path to take next. The hollow diamond with one incoming edge and multiple outgoing edges matches exactly: it shows a decision that can lead to different branches (yes/no, true/false, etc.). The other shapes don’t convey that branching decision. A solid square describes a process step, not a choice. A circle with a single outgoing edge resembles a simple connector or flow line, not a branching decision. A hollow circle with two outgoing edges isn’t the standard decision symbol; a decision is the diamond shape, not a circle.

The main idea is how decisions are shown in flowcharts. A decision point is depicted as a hollow diamond, with a single path flowing into it and branching into at least two paths leaving it to represent different outcomes. This shape signals a choice or test whose result determines which path to take next.

The hollow diamond with one incoming edge and multiple outgoing edges matches exactly: it shows a decision that can lead to different branches (yes/no, true/false, etc.). The other shapes don’t convey that branching decision. A solid square describes a process step, not a choice. A circle with a single outgoing edge resembles a simple connector or flow line, not a branching decision. A hollow circle with two outgoing edges isn’t the standard decision symbol; a decision is the diamond shape, not a circle.