A plan schedules dependent tasks in parallel. How would you produce a feasible delivery sequence?

Instruction: Calculate the earliest finish from the supplied durations and dependencies. Explain the resource constraint and the next planning checks.

Context:

Fictional plan: requirements take two working days. Only afterward can build A (four days) and build B (three days) start. The same engineer must perform both builds and cannot split days. Integration testing takes two days after both builds finish; a tester is available then. Work starts at the beginning of day 1; no holidays or external wait times are assumed. Leadership's draft shows completion at the end of day 8.

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Requirements occupy days 1–2. With one engineer, the two builds take seven nonoverlapping days: A on days 3–6 and B on days 7–9, or the reverse order. Integration testing runs days 10–11...

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