# phodal/migration

《系统重构与迁移指南》手把手教你分析、评估现有系统、制定重构策略、探索可行重构方案、搭建测试防护网、进行系统架构重构、服务架构重构、模块重构、代码重构、数据库重构、重构后的架构守护

Repository: https://github.com/phodal/migration
Canonical: https://ross.abutalabs.com/products/migration
Homepage: https://migration.ink
Language: Java
License: NOASSERTION
License Family: other
Topics: migration, legacy-system, refactoring, tdd, ddd, agile, testing, guard, ebook
Last push: 2021-08-12T08:05:53+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2430, "days_push": 1847, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3469, forks 566 (observed 2026-08-28T04:08:05.936263+00:00)

## What it is
An open-source Chinese-language ebook, 'System Refactoring and Migration Guide', that walks through analyzing, evaluating, and refactoring legacy systems. It covers refactoring strategy, test safety nets, architecture/service/module/code/database refactoring, and post-refactoring architecture guarding.

## Use cases
- learn how to refactor a legacy codebase
- guide for migrating a monolith to services
- how to build a test safety net before refactoring
- evaluate technical debt in an existing system
- strategies for database refactoring
- how to guard architecture after refactoring
- step-by-step legacy system modernization guide

## When to choose
- you are planning a large-scale refactoring or migration of a legacy system
- you want a structured process covering assessment, strategy, testing, and architecture evolution
- you read Chinese and want a free practical guide with a curated book list

## When to avoid
- you need a runnable tool or automation rather than a guide
- you need up-to-date content or active community support, as the latest release was in 2021
- you need an English-language resource

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation, developer-tools, testing
- domain: developer-tools, tutorials
- platform: cross-platform
- tags: legacy-systems, refactoring-guide, ebook, tdd, ddd, architecture-migration, technical-debt, agile, automation

## Member repositories
- phodal/migration (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:05.936263+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:36:39.551013+00:00, confidence not recorded.
  - readme: https://github.com/phodal/migration (fetched 2026-08-28T04:08:05.936263+00:00, sha d2eef7bf112a)
- Data as of 2026-08-30T08:39:29.467469+00:00.