UAT SIT QAS DEV PET

UAT: User Acceptance Testing 用户验收测试
SIT: System Integration Testing 系统集成测试
PET: Performance Evaluation Test 性能鉴定试验
DEV: Development System 开发系统
QAS: Quality Assurance system 质量保证体系

PRO: professional 专业版 
ENT: enterprise 企业版