diff --git a/src/main/java/app/quickcase/sdk/spring/definition/model/Action.java b/src/main/java/app/quickcase/sdk/spring/definition/model/Action.java
new file mode 100644
index 0000000..4eeacba
--- /dev/null
+++ b/src/main/java/app/quickcase/sdk/spring/definition/model/Action.java
@@ -0,0 +1,40 @@
+package app.quickcase.sdk.spring.definition.model;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Singular;
+
+@Builder
+public record Action(
+    @NonNull String id,
+    @NonNull String name,
+    String label,
+    String description,
+    Integer order,
+    @Singular Set<String> fromStates,
+    String precondition,
+    String toState,
+    @Singular List<Postcondition> postconditions,
+    @NonNull @Singular("acl") Map<String, Integer> acl,
+    @NonNull String classification,
+    Webhooks webhooks
+) {
+    @Builder
+    public record Postcondition(
+            @NonNull String path,
+            @NonNull String value
+    ) {
+    }
+
+    @Builder
+    public record Webhooks(
+            @NonNull Webhook onStart,
+            @NonNull Webhook onSubmit,
+            @NonNull Webhook onSubmitted
+    ) {
+    }
+}
diff --git a/src/main/java/app/quickcase/sdk/spring/definition/model/CreateAction.java b/src/main/java/app/quickcase/sdk/spring/definition/model/CreateAction.java
new file mode 100644
index 0000000..a276f9d
--- /dev/null
+++ b/src/main/java/app/quickcase/sdk/spring/definition/model/CreateAction.java
@@ -0,0 +1,23 @@
+package app.quickcase.sdk.spring.definition.model;
+
+import java.util.List;
+import java.util.Map;
+
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Singular;
+
+@Builder
+public record CreateAction(
+    @NonNull String id,
+    @NonNull String name,
+    String label,
+    String description,
+    Integer order,
+    @NonNull String toState,
+    @Singular List<Action.Postcondition> postconditions,
+    @NonNull @Singular("acl") Map<String, Integer> acl,
+    @NonNull String classification,
+    Action.Webhooks webhooks
+) {
+}
diff --git a/src/main/java/app/quickcase/sdk/spring/definition/model/RecordType.java b/src/main/java/app/quickcase/sdk/spring/definition/model/RecordType.java
index 46187aa..4f4b2a3 100644
--- a/src/main/java/app/quickcase/sdk/spring/definition/model/RecordType.java
+++ b/src/main/java/app/quickcase/sdk/spring/definition/model/RecordType.java
@@ -5,6 +5,7 @@
 
 @Builder
 public record RecordType(
-        @NonNull Schema schema
+        @NonNull Schema schema,
+        @NonNull Workflow workflow
 ) {
 }
diff --git a/src/main/java/app/quickcase/sdk/spring/definition/model/State.java b/src/main/java/app/quickcase/sdk/spring/definition/model/State.java
new file mode 100644
index 0000000..87443f6
--- /dev/null
+++ b/src/main/java/app/quickcase/sdk/spring/definition/model/State.java
@@ -0,0 +1,19 @@
+package app.quickcase.sdk.spring.definition.model;
+
+import java.util.Map;
+
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Singular;
+
+@Builder
+public record State(
+    @NonNull String id,
+    @NonNull String name,
+    String label,
+    String description,
+    String titleTemplate,
+    Integer order,
+    @NonNull @Singular("acl") Map<String, Integer> acl
+) {
+}
diff --git a/src/main/java/app/quickcase/sdk/spring/definition/model/Webhook.java b/src/main/java/app/quickcase/sdk/spring/definition/model/Webhook.java
new file mode 100644
index 0000000..d677491
--- /dev/null
+++ b/src/main/java/app/quickcase/sdk/spring/definition/model/Webhook.java
@@ -0,0 +1,15 @@
+package app.quickcase.sdk.spring.definition.model;
+
+import java.net.URL;
+import java.util.List;
+
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Singular;
+
+@Builder
+public record Webhook(
+        @NonNull URL url,
+        @Singular @NonNull List<Integer> retries
+) {
+}
diff --git a/src/main/java/app/quickcase/sdk/spring/definition/model/Workflow.java b/src/main/java/app/quickcase/sdk/spring/definition/model/Workflow.java
new file mode 100644
index 0000000..728fea8
--- /dev/null
+++ b/src/main/java/app/quickcase/sdk/spring/definition/model/Workflow.java
@@ -0,0 +1,15 @@
+package app.quickcase.sdk.spring.definition.model;
+
+import java.util.Map;
+
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Singular;
+
+@Builder
+public record Workflow(
+        @NonNull @Singular Map<String, State> states,
+        @NonNull @Singular Map<String, CreateAction> createActions,
+        @NonNull @Singular Map<String, Action> actions
+) {
+}