A Gantt chart for a civic hall renovation shows 'Council approval' as a 0-day diamond and 'frame walls' as a 12-day bar. What do those shapes represent?
Select an answer to reveal the explanation.
Short Explanation
Diamonds are 'this moment happened' stickers; bars are 'people are swinging hammers for twelve days.' Council approval is the sticker; framing is the hammer time.
Full Explanation
On a Gantt chart, a 0-day diamond conventionally represents a milestone, and a multi-day bar represents an activity with duration. For the civic hall renovation, “Council approval” as a diamond and “frame walls” as a 12-day bar match that meaning exactly. Saying both shapes are work packages that must be staffed for the full displayed duration fails by concept: a zero-duration milestone is an event marker, not staffed work lasting as long as the diamond symbol appears on the chart. Saying the diamond means work is blocked and the bar means unlimited float fails because those interpretations are not what the shapes encode—float and blocking are separate schedule analyses, not diamond/bar definitions. Saying the bar is always a milestone summary and the diamond is a resource histogram entry confuses Gantt activity symbology with resource histograms and summary rollups. Exam caveat: CAPM-level schedule questions often test milestone versus activity recognition from Gantt symbology without requiring advanced scheduling-tool expertise. Operational check: confirm council approval is linked as a milestone with predecessors and successors, ensure framing has labor and duration assigned, and avoid booking crew hours against zero-duration diamonds.