Risk and options / Delivery leads, planning owners and acceptance reviewers

Dependency map

Keep shared failure causes in a fallback review

Avoid treating two routes with one common dependency as independent backups.

The worked case tests common-cause failure in an either-route plan, distinct from serial gates requiring both successes.

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Original worked case · Manual planning resource

Inspect the decision, not just the summary.

Start with the invented evidence, follow the reasoning, and retain its limits when adapting the brief.

01 · Inspect the inputs

Every record stays visible

Inspect the invented case records
Toy condition	Probability	Route A	Route B
Shared input missing	0.1	Fails	Fails
Shared input available	0.9	Succeeds	Succeeds

Use horizontal scrolling for wide tables. These records are invented, not customer data.

Records · CSV Complete case · JSON Manual brief · Markdown

02 · Follow the reasoning

How the case leads to a decision

The only joint failure event is the shared missing input, with supplied probability 0.1. The false independent calculation 0.1×0.1=0.01 describes a different model. Naming two routes does not create independent redundancy.

The bounded result

Both routes fail together with probability 0.1 under the declared common-input model. Squaring 0.1 to obtain 0.01 would assume away the shared dependency.

Definitions and method context

Records, decisions and policies are original synthetic examples. External references supply context; they do not validate these cases or TeamBoostAI capabilities.

Original worked-case definitions
Definitions, policy choices, records and calculations are authored for this worksheet. No external standard, statistical validation or live product measurement is claimed.

External references checked 6 October 2026. Demand for these topics has not been measured.

Unblock the receiving work

Illustrative dependency map

Synthetic planning case: Two alternate delivery routes use the same required input. In an invented model that input is missing with probability 0.1; both routes otherwise succeed. A proposal treats the routes as independent backups.

Shared input

Required input: Required by both routes
Receiving condition: Inspect upstream availability

Route A

Required input: Succeeds only if input exists
Receiving condition: Not an independent bypass

Route B

Required input: Same input condition
Receiving condition: Retain joint failure condition

Decision to make: Both routes fail together with probability 0.1 under the declared common-input model. Squaring 0.1 to obtain 0.01 would assume away the shared dependency.

Map common prerequisites

Owner role · Route planner

Evidence: Both routes depend on the same named input.

Inspect the joint failure conditions

Owner role · Reviewer

Evidence: The two supplied rows describe all events in the toy model.

Choose a meaningful fallback

Owner role · Delivery lead

Evidence: Any alternative intended to bypass the input has its own verified requirements rather than a second route name.

Filled manual planning note

Invented planning text. Adapt it to your evidence and confirmed owners.

Both routes fail together with probability 0.1 under the declared common-input model. Squaring 0.1 to obtain 0.01 would assume away the shared dependency. The only joint failure event is the shared missing input, with supplied probability 0.1. The false independent calculation 0.1×0.1=0.01 describes a different model. Naming two routes does not create independent redundancy. Other failures are excluded by the toy definition. This does not estimate operational reliability or establish a real backup route.

Put the outline to work

Map common prerequisites. Check: Both routes depend on the same named input.
Inspect the joint failure conditions. Check: The two supplied rows describe all events in the toy model.
Choose a meaningful fallback. Check: Any alternative intended to bypass the input has its own verified requirements rather than a second route name.

Questions about this workflow

Would a different executor remove this failure?

Not if that executor still needs the same absent input.

Does 0.1 describe our real service?

No. It is a supplied illustrative probability with deliberately simplified conditions.

Does this create tasks in the product?

No. The brief is a manual planning resource. Use the product access link to check onboarding and the workflows available in your account.

From a useful outline to team work

Explore TeamBoostAI for your team

Use the owned checks and downloaded brief to discuss this planning decision alongside your TeamBoostAI tasks. Confirm available fields, roles and account features separately. The example is manual; it does not calculate live analytics, create work or run an experiment in the product. Confirm the workflows available in your account before adopting this outline.

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