diff --git a/src/main.rs b/src/main.rs
index a3757b7..91ce3b4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -50,3 +50,44 @@ fn help() {
     println!("Conversion of WFDB files to a more human readable format. By default to a CSV.");
     println!("\nUse in the format \"wfdb_corrosion (.hea filename)\"")
 }
+
+/// Holds fully processed signal data already parsed from the .dat file, ready
+/// to be outputted in a practical way
+#[derive(Debug, Clone)]
+struct SignalData {
+    name: String,
+    values: Vec<f64>,
+    unit: String
+}
+
+impl SignalData {
+    /// Creates a [`SignalData`](crate::SignalData) with a name and an empty
+    /// `values` vector and `unit` string.
+    /// 
+    /// The `values` vector is initialized with no capacity, which causes this
+    /// struct to be quite a bit slower. This method is thus not suggested, use 
+    /// [`SignalData::with_name_and_capacity`](crate::SignalData::with_name_and_capacity)
+    /// when you know how much you want to allocate
+    /// 
+    /// # Arguments
+    /// * `name` - The name of the Signal
+    pub fn with_name(name: String) -> SignalData {
+        SignalData { name: name, values: vec![], unit: String::new() }
+    }
+
+    /// Creates a [`SignalData`](crate::SignalData) with a name and a
+    /// `values` vector of a certain capacity and an empty `unit` string.
+    /// 
+    /// # Arguments
+    /// 
+    /// * `name` - The name of the Signal
+    /// * `capacity` - The capacity with which the `values` vector will be 
+    /// initialized
+    pub fn with_name_and_capacity(name: String, capacity: usize) -> SignalData {
+        SignalData { name: name, values: Vec::with_capacity(capacity), unit: String::new() }
+    }
+}
+
+fn get_signal_data() -> SignalData {
+    todo!()
+}