Understanding diverges
Customer, product, systems, software and testing each interpret the same requirement from their own background. They seem to agree, but the models in their heads differ.
AI requirement model co-builder for engineering teams
Turn vague requirements into an engineering requirement model both sides can confirm
Through professional requirement analysis, it automatically generates confirmation questions and visual models, helping customers, product, R&D and testing continuously clarify and form a shared understanding before development.
This is a small-scope invite-only trial.Please do not upload unsanitized company secrets, sensitive customer information, or restricted documents.
Raw input“Restore the previous page after exiting reverse gear”
AI finds a gapHow to handle startup failure?Pending
Model updateShow previous page + fault promptConfirmed
Draft V2 · co-building
01 / Problem
A lot of rework is not because the team can't develop — it's because the requirements were never truly clarified up front
Building from vague requirements
The main flow looks clear, but exception paths, boundary conditions, failure handling, state transitions and responsibility boundaries are never defined.
Decisions don't stick
Decisions scatter across meetings, chats and emails, and the final requirement doc and model are never kept in sync.
Problems surface too late
Gaps and conflicts only emerge during development, integration or testing, causing rework, delays and disputes over responsibility.
02 / Product demo
Clarify and model at the same time
Every answer is not an ordinary chat — it is filling in an engineering requirement that can be reviewed and confirmed.
Clarification4 messages
User input
When the vehicle enters reverse gear, the system shows the reverse camera. After exiting reverse gear, it restores the previous page.
AI analysis
I identified three main phases: reverse-camera entry, display, and exit recovery.
Pending · High priority
If the reverse camera fails to start, should the system keep showing the previous page, or show a fault prompt?
User answer
Show the previous page and prompt that the reverse camera is unavailable.
Added startup-failure handling and updated the requirement model
Requirement modelFlow clarification
6Confirmed
2Inferred
1Pending
Enter reverse gear
→Start reverse camera
→Started successfully?
YesShow reverse camera
NoPrevious page + unavailable prompt
Exit reverse gear → restore previous page
ConfirmedInferredPending
03 / Core difference
It is not an ordinary AI drawing tool
Drawing starts from “already figured out”; requirement model co-building starts from “not yet fully said”.
DimensionOrdinary drawing toolRequirement model co-builder
Starting pointAlready know what to drawCan start from vague, scattered requirements
Core actionCreate nodes, edges and layoutAnalyze requirements, find gaps, drive confirmation
AI's roleGenerate a diagram from textRequirement analysis and clarification assistant
OutputOne diagramConfirmation questions, structured requirements and visual models
Uncertain infoOften auto-filledDistinguishes confirmed, inferred and pending
IterationManually edit the diagramKeep updating the model as questions are answered
Final valueImprove drawing efficiencyReduce understanding gaps, review misses and dev rework
Professional basisGeneral drawing capabilitySystems engineering and automotive R&D practice
04 / How it works
From a vague input to a freezable requirement version
- 01
Input requirement materials
Enter requirement text, Excel lists, or requirement screenshots or images.
- 02
Professional requirement analysis
Identify features, roles, flows, states, interactions, conditions, exceptions and missing information.
- 03
Generate questions and model
Output confirmation questions together with flow, interaction or state models.
- 04
Two-sided continuous clarification
Answer and discuss around the diagram and questions; each clarification updates the same model.
- 05
Form an engineering version
Settle clear descriptions, reviewable diagrams, question status and freezable versions.
05 / Core advantages
Let the team see the known — and the unknown
Start from vague requirements
Users don't need to figure out all the logic first; the system can analyze from incomplete, scattered input.
Questions and diagrams in parallel
Diagrams show known logic, confirmation questions expose unknown info; both drive clarification.
Multi-round model co-building
Each answer adds to the current requirement and model, instead of fragmenting into separate chat logs.
Mark information nature
Clearly distinguish original-text facts, engineering inferences and pending content, reducing AI auto-completion misdirection.
Fuse engineering experience
The analysis logic embeds about 15 years of automotive R&D, systems engineering and cross-team collaboration practice.
Serve engineering review
Output targets communication, confirmation and review — not just pretty diagrams.
06 / Audience
Designed for every role in complex engineering collaboration
Systems engineers, requirements engineers, product managers, software engineers, test engineers, systems architects, project managers, customer technical liaisons and R&D managers.
Customer input is incomplete or multiple documents contradict each other
Meetings produce many new requirements that are hard to sync and settle
Product, R&D and testing understand the same feature differently
Complex flows and states are hard to describe in words alone
Before a requirement review, you need to quickly build a shared understanding
Early in a project, you need to identify exception paths and boundary conditions
07 / Developer
Engineering experience is this tool's other layer of model
Built independently by a product builder with about 15 years of automotive R&D and systems engineering practice, covering software, systems architecture, product, project management, and requirements analysis.
Early invite trial
Before development, first truly clarify the requirements
Enter an invite code to experience the full process from vague requirement to an engineering requirement model.
Enter invite code to startNo invite code? Contact the developer by email to request a trial