| Security | Data Management | Execution Management | Information Services | Common Runtime |
| Authentication Authorization | Data Replication | Community Scheduler Framework | Index | C WS Core |
| Community Authorization | Reliable File Transfer (RFT) | Grid Resource Allocation and Management | Trigger | Java WS Core |
| Delegation | Data Access and Integration | Grid Telecontrol Protocol | Web Monitoring and Discovery System (Web MDS) | Python WS Core |
| Workspace Management | ||||
| THE COMPONENTS BELOW ARE NOT BASED ON WEB SERVICES: | ||||
| PreWS Authentication Authorization | GridFTP | PreWS Grid Resource Allocation and Management | PreWS Monitoring and Discovery (DEPRECATED: Will be dropped in a future release) | C Common Libraries |
| Credential Management | Replica Location | eXtensible IO (XIO) |