What is the notation of a merge node?

What is the notation of a merge node?

• A. Hollow diamond with at least two incoming edges and one outgoing edge
• B. Hollow diamond with a single incoming edge and at least two outgoing edges
• C. Line segment with one incoming edge and at least two outgoing
• D. Line segment with two incoming edges and two outgoing edges

Answer: (A)

In control flow diagrams, a merge point is where different paths come together and continue as one path. This is shown with a hollow diamond that has at least two incoming edges (the paths that converge) and a single outgoing edge (the unified flow onward). The diamond shape signals a control point, and the multiple inputs match the idea of joining branches. By contrast, a decision node uses the same diamond shape but with one incoming edge and multiple outgoing edges, representing a split rather than a join. A simple line segment doesn’t convey merging, and a design with two inputs and two outputs doesn't reflect a single joined flow.

In control flow diagrams, a merge point is where different paths come together and continue as one path. This is shown with a hollow diamond that has at least two incoming edges (the paths that converge) and a single outgoing edge (the unified flow onward). The diamond shape signals a control point, and the multiple inputs match the idea of joining branches. By contrast, a decision node uses the same diamond shape but with one incoming edge and multiple outgoing edges, representing a split rather than a join. A simple line segment doesn’t convey merging, and a design with two inputs and two outputs doesn't reflect a single joined flow.