BackupScheduler { # Backup Scheduler n1: circle label:"Start" n2: rectangle label:"Trigger scheduled backup" n3: rectangle label:"Select backup targets" n4: rectangle label:"Verify backup completion" n5: circle label:"End" n1.handle(right) -> n2.handle(left) n2.handle(right) -> n3.handle(left) n3.handle(bottom) -> BackupAgent.n6.handle(top) [label="Execute"] n4.handle(right) -> n5.handle(left) } BackupAgent { # Backup Agent n6: rectangle label:"Create database snapshot" n7: rectangle label:"Compress backup files" n8: rectangle label:"Encrypt with AES-256" n9: rectangle label:"Upload to S3 bucket" n10: diamond label:"Upload successful?" n11: rectangle label:"Update backup catalog" n12: rectangle label:"Retry upload" n6.handle(right) -> n7.handle(left) n7.handle(right) -> n8.handle(left) n8.handle(right) -> n9.handle(left) n9.handle(right) -> n10.handle(left) n10.handle(right) -> n11.handle(left) [label="Yes"] n10.handle(bottom) -> n12.handle(top) [label="No"] n11.handle(top) -> BackupScheduler.n4.handle(bottom) [label="Complete"] n12.handle(top) -> n9.handle(bottom) [label="Retry"] } RestoreProcess { # Restore Process n13: rectangle label:"Select restore point" n14: rectangle label:"Download from S3" n15: rectangle label:"Decrypt backup" n16: rectangle label:"Decompress files" n17: diamond label:"Restore type?" n18: rectangle label:"Full database restore" n19: rectangle label:"Point-in-time recovery" n20: rectangle label:"Verify data integrity" n13.handle(right) -> n14.handle(left) n14.handle(right) -> n15.handle(left) n15.handle(right) -> n16.handle(left) n16.handle(right) -> n17.handle(left) n17.handle(right) -> n18.handle(left) [label="Full"] n17.handle(bottom) -> n19.handle(top) [label="PITR"] n18.handle(right) -> n20.handle(left) n19.handle(right) -> n20.handle(top) n20.handle(top) -> BackupScheduler.n4.handle(bottom) [label="Restored"] }