Prompt Title: alloy model

I apologize for the confusion. Here's the updated code that should generate the model you shared:

sqlCopy code
abstract sig DataType {}
one sig Integer, Bool, Char, Float, Double, Long, Short, Byte extends DataType {}

sig Model {}
sig Publisher, Controller extends Model {}
sig Subscriber extends Model { input: DataType }

sig View {}

sig Component {
    model: Model,
    view: lone View
}

sig Connection {
    source: Component,
    destination: Component
}

fact ConnectionWellFormedness {
    all c: Connection | c.source.model = c.destination.model
}

sig System {
    components: Component,
    connections: Connection
} {
    components = System.model.view
    connections = Connection
}

pred connect(c1, c2: Component) {
    c1.view = c2.view
    c1.model -> c2.model in Connection.source -> Connection.destination
}

run {} for 5

This code defines Publisher and Controller as subtypes of Model, and Subscriber as a subtype of Model with an input attribute of type DataType. I apologize for any confusion the previous updates may have caused.