Scenario-Comparison Timeline

1  Slide Type Name
Scenario‑Comparison Timeline

2  One‑Sentence Purpose Statement
Lets decision‑makers instantly see “how schedule and milestones shift under different scenarios (e.g., Base vs. Accelerated vs. Delayed).”

3  Visual Description (Designer Instructions)

• Start with a 16 × 9 slide and draw a single horizontal time axis across the top 40 % of the canvas.
• Below the axis, stack two (or more) identical horizontal lanes—one per scenario. Label each lane at the far left (Base Case, Accelerated, Constrained, etc.) in 11 pt bold.
• In each lane, place milestone markers or phase bars at the dates dictated by that scenario. Align them vertically so corresponding milestones form easy‑to‑compare columns.
• Colour‑code each scenario’s markers/bars with a distinct but coordinated palette (e.g., blue = Base, green = Accelerated, orange = Delayed). Keep milestone shapes consistent across scenarios.
• Connect corresponding milestones across lanes with faint dotted vertical guide lines to emphasise deltas without clutter.
• Annotate schedule deltas (e.g., “‑4 wks” or “+2 mo”) beside or beneath shifted milestones—use small call‑out boxes or inline text, colour‑matched to the affected scenario.
• Add a vertical “Today” line through all lanes for context. Optionally shade the time window between “Today” and a milestone in each scenario to visualise the gap.
• Reserve the top 15 % for a concise headline and legend explaining colour coding. Maintain generous white space so labels never collide with the axis or guide lines.
• Use sans‑serif fonts: milestone labels 9 pt; axis tick labels 10 pt; scenario headings 11 pt bold.

4  Business Questions This Slide Answers

• How much sooner (or later) do milestones land under each scenario?
• Which scenario meets a fixed deadline or regulatory date?
• Where do resource or cost trade‑offs materially change the timeline?
• What is the lead time we still have under the slowest path?
• Which milestones are immovable across all scenarios?

5  When to Use (Typical Situations)

• Executive decision meetings weighing “fast‑track” vs. “normal” schedules.
• Contingency planning for supply‑chain or regulatory delays.
• Sales or marketing roadmap options tied to product‑launch timing.
• Negotiations with vendors on expedited delivery.
• Board updates requiring transparency on aggressive vs. realistic timelines.

6  Core Data Fields Required

• Scenario names.
• Milestone titles and dates for each scenario.
• Common time axis (start and end dates).
• Current date (“Today”) marker.

7  Optional / Advanced Data Fields

• Numeric schedule deltas (weeks/mo) auto‑calculated and displayed.
• Cost or resource delta per scenario shown as inline badges.
• Probability or confidence score for each scenario.
• Owner or accountable leader for each scenario
• Conditional formatting (e.g., highlight milestones that slip past a contractual deadline).