Next-Gen AI Development Framework
NEXA
AI that executes the entire development process.
Right. Fast. Consistent.
Unlike ChatGPT or Copilot—NEXA operates at the process level. From requirements to design, code, and testing, AI executes your full SDLC with quality gates at every step.
NEXA 開発を、もっと速く。もっとスマートに。
NEXA (Next-Gen AI Engineering Automation)は、Fabbi独自の生成AIを活用した次世代AI開発フレームワークです。要件定義から設計、開発、テストまで、ソフトウェア開発の流れ全体をAIがやさしく支えながら自動化し、これまで人手に頼っていた開発プロセスを、より速く、より高品質で、再現性の高いプロセスへと導きます。
- 要件定義書
- 基本設計書
- 仕様書類
- Markdown
- 画像・PNG
- 画面設計
- API設計
- ソースコード
- テスト仕様書
Already using AI for development? These walls sound familiar.
4 challenges companies face after adopting Copilot or ChatGPT
課題 01AI writes code, but no documentation
Copilot and ChatGPT generate code but never produce design documents (BD/DD). Development moves forward without the documentation needed for audits, handoffs, and maintenance.
課題 02Generated code quality varies every time
Same question, different answer each time. Coding standards and project rules aren't reflected, driving up review effort.
課題 03Nobody is verifying AI output
Generated code goes straight to production — no tests, no review. Quality risk accumulates invisibly.
課題 04AI only helps in fragments, not the full process
File-level or function-level AI assistance has limits. There's no unified AI execution across requirements → design → implementation → testing.
NEXA Core Features
An enterprise engine that automates design → implementation → testing with AI
Design-to-Code Conversion
Automatically generate pixel-perfect frontend code from Figma design mockups and UI specifications.
Requirement-to-Backend Generation
Input API specs, data models, and business logic requirements to auto-generate backend code and API endpoints.
Automated Test Code Generation
Automatically generate unit and integration tests alongside implementation code — starting coverage from a high baseline.
Multi-Stack Architecture
Generate code for multiple stacks in parallel from a single set of requirements. Adapt flexibly to technology changes.
CI/CD Pipeline Integration
Integrate with GitHub Actions, GitLab CI, and Jenkins to fully automate code generation → build → test → deploy.
SYNCA Quality Gate
SYNCA automatically reviews generated code. Error patterns, security vulnerabilities, and performance issues are detected at generation time.
NEXA実行デモ
ドキュメント生成とコード生成のフェーズをリアルタイムで体験
Source Code - Production Ready
80% Adoption Rate- + LoginForm.tsx
- + Dashboard.tsx
- + UserTable.tsx
- + Analytics.tsx
- + auth.service.ts
- + user.service.ts
- + analytics.service.ts
47 files generated, 3,200 lines of code
NEXAを導入すると、開発はどれくらい変わる?
実際の導入プロジェクトをもとに、
NEXA導入による開発フェーズごとの変化をご紹介します。
要件定義&基本設計
設計書生成
精度／正確度
完成度
開発
(ソースコード)
そのまま採用
テスト生成
カバーレッジ
総合テスト
運用
要件定義&基本設計
設計書生成
開発 (ソースコード)
テスト生成
総合テスト
運用
開発哲学
NEXA = メタプログラミング + 仕様駆動開発
NEXAは「プログラムを書くプログラム」と「仕様駆動開発」を融合。 設計書がコードを生み出す、次世代の開発パラダイムです。
メタプログラミング
プログラムを書くプログラム — Programs that write programs
仕様駆動開発
Spec Driven Development — Specifications drive everything
NEXAって、どんなイメージ?
設計資料を入れるだけで、成果物が自動で生まれる開発フレームワーク
Business Value NEXA Creates
Dramatically shorter development lead times
Speed up the path from design to working code by 3–5×. Ship faster and gain the competitive advantage of time-to-market.
Optimal allocation of engineering resources
With AI handling routine implementation, engineers focus on architecture, user experience, and building innovative features.
Standardized code quality
AI generates code to consistent coding standards and best practices — eliminating individual skill variance and normalizing quality.
Suppression of technical debt
Automated test generation and quality gates create a development cycle where technical debt is difficult to accumulate.
3 Levels of AI in Development
Fabbi AI Framework 全体図
FARE + NEXA + SYNCA
FARE
AI Reverse Engineering
レガシーコードを解析し ドキュメントを自動生成
- 既存コードの解析・理解
- ドキュメント自動生成
- COBOL/VB/C対応
NEXA
AI Development Framework
要件から本番コードまで AIが自動生成
- RD→BD→DD→コード自動化
- 70%の開発工数削減
- 94%のコード精度
SYNCA
AI Quality Command Center
変更影響分析と 品質保証の自動化
- 変更影響分析
- バグローカライゼーション
- 自動バグ修正
Case Study
70–80%
Auto-Generated Code Accuracy
3–5×
Development Speed Improvement
40–60%
Development Cost Reduction
83%
Existing Logic Reuse Rate
In a mission-critical system modernization project, FARE legacy analysis output was fed directly into NEXA. The project automatically converted existing business logic into a modern microservices architecture while preserving all business rules — dramatically reducing the development timeline compared to conventional manual rewriting.
FARE + NEXA Migration Track Record
FARE understands, NEXA builds — a complete execution story from legacy to next-gen
COBOL → Java Migration
FARE auto-analyzes COBOL code structure and business logic, generating detailed design docs. NEXA then auto-generates Java code from those specs. Dramatically shortens large-scale core system migration.
Struts → Spring Boot Migration
FARE visualizes existing Struts app structure and dependencies. NEXA auto-generates Spring Boot code and tests, enabling migration to modern microservices architecture.
NEXA Evaluation Process
Validate the impact in a real project in 2 weeks
Setup & Sample Generation
NEXA integration into your development environment. Sample code generation demo using your actual requirements and designs.
Week 1
Pilot Project
Apply NEXA to a real small-scale feature development. Quantitatively measure productivity, quality, and cost effectiveness.
Week 2
Pricing Models
Three flexible models to match your project scale and operational style
License Plan
Client executes NEXA, Fabbi provides technical support
Spot Plan
Fabbi handles everything — one-stop service
White-Label
Deliver NEXA under your own brand
Security & Compliance
A security posture that meets Japan's enterprise standards
Local Security
Your data never leaves your internal environment
- On-premise execution
- No external data transfer
- Air-gapped environment support
- Fully contained within internal network
Contract Security
Data protection backed by contract
国際セキュリティ基準に準拠し、契約によるデータ保護をお約束します
Built for the Japan Market
Tokyo Office On-Site Team
Japanese-speaking support for implementation, technical assistance, and operations — directly from Tokyo.
ISO 27001 / ISO 9001 / Privacy Mark
Certified security posture meeting strict requirements of financial, public, and manufacturing sectors.
Sakura Internet Compatible
Japanese private cloud for data sovereignty. Flexible deployment from PoC to production.
Full On-Premise Support
Deploy without sending source code outside your network. Air-gapped environment compatible.
Ready to transform your development process?
See how NEXA delivers 5x faster development with built-in quality assurance.
Frequently Asked Questions
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Download Materials
Download NEXA product brochure in PDF
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