ES-102 Outputs¶

Purpose¶

This page defines the outputs produced by ES-102 and how they support later stages.

Outputs are not just documents. They are repository artifacts that preserve the engineering contract between ES-101 vision and downstream execution.

Required outputs¶

ES-102 produces the following required artifacts:

docs/requirements/requirements_overview.md
docs/requirements/functional_requirements.md
docs/requirements/nonfunctional_requirements.md
docs/requirements/constraints.md
docs/requirements/use_cases_or_user_stories.md
docs/requirements/traceability_notes.md
docs/requirements/requirements_review.md
docs/requirements/requirements_readiness_summary.md

Output purposes¶

Output	Purpose	Downstream Use
Requirements overview	Connects ES-101 vision evidence to ES-102 obligations.	ES-103 planning, ES-104 architecture, stakeholder review.
Functional requirements	Defines required behaviors.	Planning, design, implementation, testing, release readiness.
Nonfunctional requirements	Defines required qualities and trustworthiness obligations.	Architecture, testing, operations, governance, stewardship.
Constraints	Defines solution boundaries.	Planning, architecture, design, implementation decisions.
Use cases or user stories	Shows stakeholder goals and interaction flows.	Validation, design, test design, usability review.
Traceability notes	Connects requirements to sources and verification expectations.	Testing, release readiness, governance, change control.
Requirements review	Records findings, corrections, risks, and unresolved questions.	Planning, risk management, stakeholder follow-up.
Requirements readiness summary	Summarizes ES-103 readiness.	Primary transition artifact into planning.

Optional outputs¶

Create optional outputs only when they clarify real project evidence:

docs/requirements/stakeholder_questions.md
docs/requirements/open_requirements_issues.md
docs/requirements/ai_requirements_notes.md
docs/requirements/requirements_change_log.md

Optional artifacts should not become clutter. They should exist only when they make requirements work more reviewable or traceable.

Downstream consumers¶

ES-103 uses ES-102 outputs to organize, estimate, sequence, and assign work.

ES-104 uses ES-102 outputs to make architecture and design decisions.

Implementation uses ES-102 outputs to understand what must be built and what boundaries must be respected.

Testing uses ES-102 outputs to define verification and acceptance expectations.

Release readiness uses ES-102 outputs to decide whether obligations have been satisfied.

Operations and governance use ES-102 outputs to understand the trust, oversight, evidence, and control expectations the system must preserve.

Output quality checklist¶

Before leaving ES-102, confirm that:

every required artifact exists;
major requirements are traceable to ES-101 evidence;
functional requirements are clear and bounded;
nonfunctional requirements are meaningful and reviewable;
constraints are explicit;
use cases or user stories cover major stakeholder goals and important exceptions;
review findings are recorded;
unresolved issues are visible;
readiness for ES-103 is clearly stated.

Output ownership¶

The requirements package belongs to the engineering team. AI may assist, templates may guide, and examples may inform, but final requirements must be accepted by accountable humans.

Common pitfall

Do not produce a massive requirements file that nobody can review. A smaller, structured, traceable requirements package is more useful than an impressive document that hides ambiguity.

Engineering insight

Good outputs reduce future guessing. If ES-103 still has to infer what matters, ES-102 is not finished.

Continue to Readiness Gate

Determine whether ES-103 can begin responsibly.

Continue to Readiness Gate →

ES-102 — Outputs