缺陷生命周期：从发现Bug到关闭Bug的全过程_千锋教育

New → Open → Fixed → Closed
                ↓
            Reopen → Fixed

class BugStateMachine:
    def __init__(self):
        self.states = {
            'New': ['Open', 'Rejected'],
            'Open': ['Fixed', 'Rejected'],
            'Fixed': ['Closed', 'Reopen'],
            'Reopen': ['Fixed'],
            'Closed': ['Reopen'],
            'Rejected': ['New']  # 驳回后可重新提交
        }
    
    def can_transition(self, current_state, next_state):
        return next_state in self.states.get(current_state, [])
    
    def transition(self, bug, next_state):
        if self.can_transition(bug.state, next_state):
            bug.state = next_state
            return True
        return False

def get_priority_level(severity, business_impact):
    matrix = {
        ('Critical', 'High'): 'Urgent',
        ('Critical', 'Low'): 'High',
        ('Major', 'High'): 'High',
        ('Major', 'Low'): 'Medium',
        ('Minor', 'High'): 'Medium',
        ('Minor', 'Low'): 'Low',
        ('Trivial', 'Low'): 'Low'
    }
    return matrix.get((severity, business_impact), 'Low')

# JIRA工作流配置
workflow:
  name: "缺陷管理标准流程"
  states:
    - name: "New"
      transitions:
        - to: "Open"
          conditions:
            - "已确认是真实缺陷"
        - to: "Rejected"
          conditions:
            - "非缺陷/重复提交"
    - name: "Open"
      transitions:
        - to: "Fixed"
          conditions:
            - "开发完成修复"
        - to: "Rejected"
          conditions:
            - "无法复现/设计如此"
    - name: "Fixed"
      transitions:
        - to: "Closed"
          conditions:
            - "测试验证通过"
        - to: "Reopen"
          conditions:
            - "测试验证不通过"
    - name: "Closed"
      transitions:
        - to: "Reopen"
          conditions:
            - "回归测试发现新问题"

缺陷密度 = 缺陷数量 / 代码行数（单位：个/千行）
行业基准：2-5个/千行

def analyze_bug_root_cause(bug_data):
    causes = {
        'requirement': 0,
        'design': 0,
        'coding': 0,
        'environment': 0
    }
    
    for bug in bug_data:
        if bug['type'] == '需求变更':
            causes['requirement'] += 1
        elif bug['type'] == '逻辑错误':
            causes['coding'] += 1
        elif bug['type'] == '接口不兼容':
            causes['design'] += 1
        else:
            causes['environment'] += 1
    
    total = sum(causes.values())
    return {k: v/total*100 for k, v in causes.items()}