Student Result Management System Sequence Diagram (Publish Results)

sequenceDiagram
  actor T as Teacher
  participant S as Result System
  participant R as Result Engine
  actor C as Exam Cell
  participant N as Notification Service
  T->>S: Upload marks
  S->>S: Check every student has marks
  alt Marks missing
    S-->>T: List of missing entries
    T->>S: Upload corrected marks
  end
  S->>R: Calculate grades and SGPA
  R-->>S: Draft results
  S->>C: Send for approval
  C-->>S: Approve
  S->>S: Publish results
  S->>N: Notify students and parents
  N-->>T: Delivery report