Marketing OS, inside Indizilla · systems designer

The model proposes, you decide

Deterministic code decides anything with a right answer.

  1. Cover
    01Cover — Marketing OS, a product inside Indizilla, read as a systems designer.Full size ↗
  2. Overview
    02Overview — What it covers, and how big it actually is.Full size ↗
  3. The sentence that explains the rest
    03The sentence that explains the rest — A budget cap is enforced by an if statement, not by asking a model to be careful.Full size ↗
  4. No fake integrations
    04No fake integrations — Six named states, and the first run that is meant to be empty.Full size ↗
  5. A missing number is not zero
    05A missing number is not zero — And a rate carries the denominator that produced it.Full size ↗
  6. Money is decided by code
    06Money is decided by code — Campaigns launch paused, and a watcher reads the money already leaving.Full size ↗
  7. Approval-first, and raw data kept raw
    07Approval-first, and raw data kept raw — Two invariants that decide what the system is allowed to forget.Full size ↗
  8. Everything outside is data
    08Everything outside is data — Three invariants that treat the whole outside world as untrusted.Full size ↗
  9. Tenancy is a security boundary
    09Tenancy is a security boundary — 404 rather than 403, a failure that closes, and a test that greps the routes.Full size ↗
  10. The read-backs
    10The read-backs — Ask the vendor what it thinks, separately from what your own rows believe.Full size ↗
  11. The port
    11The port — Taking a synchronous data layer off its driver, and what the typecheck did not prove.Full size ↗
  12. What is missing
    12What is missing — In the order the author would fix it.Full size ↗
  13. Stated limits
    13Stated limits — What this study could not verify.Full size ↗

Built by me. Written from the product repository, its code comments and its own handover. Nothing has run against a real account by the project's own record, so no integration is claimed as proven and no connected screen is shown.

Back to the written studyAll case studiesSee it live ↗

B-SIDEOff the record