PlantUML Web Server

@startuml
skinparam backgroundColor #f5efe2
skinparam shadowing false
skinparam class {
  BackgroundColor #fdfaf0
  BorderColor #b8a982
  ArrowColor #6e5d3d
  FontName "Helvetica"
}
skinparam note {
  BackgroundColor #f0e3c4
  BorderColor #b8a982
}
hide empty members

class "Aristotle" as aristotle <<system>> #2c4a6b {
  institutional_boundary : boolean
  low_stakes_interaction : boolean
}
class "Undergraduate Student" as undergraduate_student <<actor>> {
  coursework_material : string
  disengagement_risk : boolean
}
class "Coursework Material" as coursework_material <<block>> {
  subject_matter : string
  graded_status : enum{ungraded,graded}
}
class "Lecture Content" as lecture_content <<block>> {
  topic : string
  source_material : string
}
class "Office Hours" as office_hours <<block>> {
  availability : boolean
}

class "Must never output a complete solution to a graded problem" as must_never_solve <<constraint>> {
}
class "Response latency under 1.2s P50 to preserve flow" as latency_p50 <<constraint>> {
}
class "FERPA tenancy — coursework never leaves institutional boundary" as ferpa_tenancy <<constraint>> {
}

undergraduate_student --> aristotle : interacts_with
aristotle --> coursework_material : processes
undergraduate_student --> coursework_material : works_on
must_never_solve ..> aristotle : applies_to
latency_p50 ..> aristotle : applies_to
ferpa_tenancy ..> aristotle : applies_to
ferpa_tenancy ..> coursework_material : applies_to

legend right
  **Requirements**
  **REQ-001** — Students re-engage with material via a low-stakes thinking partner — without producing solutions.
  **REQ-002** — Must never output a complete solution to a graded problem.
  **REQ-003** — Coursework must remain within the institutional boundary (FERPA).
endlegend
@enduml

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