Price the exit from a service you already depend on

short · 40 min · Objective 1.1

Task

Lock-in is abstract until it has a number attached. Pick one service you or your organisation uses heavily and work out, concretely, what leaving it would cost in data transfer, effort and elapsed time.

Steps

  1. Name the service and the data it holds in lab/exit.md, with the volume in gigabytes. State whether the figure is measured or assumed.
  2. Look up the provider's published egress rate and calculate the transfer cost. Show the arithmetic, not just the total.
  3. Calculate the transfer TIME at a realistic sustained throughput, and state the throughput you assumed. Compare it against the point at which a physical transfer appliance becomes the faster option.
  4. List every proprietary feature in use that has no direct equivalent elsewhere, and for each one write what would replace it.
  5. Write a two-sentence conclusion: is this lock-in you would accept deliberately, and what single change would most reduce it?

Verify

grep -Eci 'gb|gigabyte|terabyte' lab/exit.md
grep -Ec '[0-9]' lab/exit.md
grep -ci 'assum' lab/exit.md

Every count must be non-zero. The last one matters most: an exit estimate that states no assumptions is a guess presented as a calculation.

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