Legacy software modernization without the big-bang rewrite
Modernize one risky software slice first: an old web app, fragile API, slow dashboard, internal tool, or workflow that blocks AI and product delivery.
Modernize the blocking slice
The first modernization sprint should reduce a real constraint: slow releases, missing tests, undocumented APIs, manual reporting, or a system nobody wants to touch.
- Old web apps
- Fragile APIs
- Manual dashboards
- Undocumented internal tools
- AI-readiness blockers
Migration without theater
The work should improve the system while keeping business continuity. Wrappers, tests, API adapters, and small releases often beat a risky rewrite.
- Add tests around critical behavior
- Wrap old systems with stable APIs
- Move one workflow to modern UI
- Document handover assumptions
Métricas clave
- 1 slice: modernized first - Start with one risky app, API, dashboard, or internal workflow instead of rewriting everything.
- 0 big bang: replacement pressure - Move by wrappers, tests, APIs, and small releases before a full replacement decision.
- AI-ready: data and workflow path - Clean interfaces and documented behavior make later AI features safer to add.
- handover: included by design - The goal is a system your team can understand, operate, and extend.
Modernization output
- Risk map: The fragile workflow, dependencies, owners, and failure modes made visible.
- Modernized slice: A working app/API/dashboard surface that replaces or wraps the risky behavior.
- Tests and logs: Basic confidence around important behavior before more change is made.
- Next migration path: Which slice to modernize next, and what can safely stay as-is.
Preguntas frecuentes
- How much does a DX PoC cost?
- A focused paid PoC usually starts from the Quick DX PoC range. Final pricing depends on data access, integrations, security needs, deployment environment, and acceptance criteria.
- How long does an AI automation sprint take?
- Most focused PoCs fit into 2 weeks, MVP automation sprints into 4 weeks, and production-oriented integrations into about 6 weeks.
- What data is required?
- The fastest start includes sample files, API docs, screenshots, example tickets, user roles, current workflow notes, and one owner who can join weekly demos.
- Can we start without API access?
- Yes. The first sprint can use exports, sample datasets, mocked APIs, or manual upload flows, then move toward API integration once access is approved.
- Do you support Japanese documentation?
- Yes. Engagements can include bilingual summaries, demo notes, handover materials, and meeting support through the Japan Desk model.
- Who owns the source code?
- Source-code ownership, repository handover, licensing, and reusable components are defined in the SOW before the sprint begins.
- What do we receive after 2 weeks?
- For a narrow PoC, the usual output is a working prototype or API slice, demo notes, assumptions, risks, acceptance criteria, and a recommendation to harden, integrate, expand, or stop.
- Who owns technical decisions?
- Senior engineers stay close to scope, architecture, AI-use risk, technical tradeoffs, weekly demos, and handover quality instead of hiding decisions behind layers of project management.
- What does an API sprint deliver?
- A focused API sprint can include endpoint design, an OpenAPI-style contract, auth assumptions, sample requests and responses, integration tests, logging, and handover notes.
- How do you measure whether the sprint worked?
- Each sprint starts with one measurable proof point such as reduced manual steps, successful extraction rate, API handoff success, response time, reviewer acceptance, or pilot-user feedback.