diff --git a/contracts/assetsup/src/lib.rs b/contracts/assetsup/src/lib.rs
index eefca51..2c9b33a 100644
--- a/contracts/assetsup/src/lib.rs
+++ b/contracts/assetsup/src/lib.rs
@@ -5,6 +5,8 @@ pub(crate) mod asset;
 pub(crate) mod errors;
 pub(crate) mod types;
 
+pub use types::*;
+
 #[contracttype]
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum DataKey {
diff --git a/contracts/assetsup/src/tests/asset.rs b/contracts/assetsup/src/tests/asset.rs
index d05be65..be80b71 100644
--- a/contracts/assetsup/src/tests/asset.rs
+++ b/contracts/assetsup/src/tests/asset.rs
@@ -34,7 +34,7 @@ fn test_register_and_get_asset_success() {
     let asset = Asset {
         id: id.clone(),
         name: name.clone(),
-        asset_type: AssetType::IT,
+        asset_type: AssetType::Digital,
         category: category.clone(),
         branch_id: 10,
         department_id: 20,
@@ -54,7 +54,7 @@ fn test_register_and_get_asset_success() {
 
     assert_eq!(got.id, id);
     assert_eq!(got.name, name);
-    assert_eq!(got.asset_type, AssetType::IT);
+    assert_eq!(got.asset_type, AssetType::Digital);
     assert_eq!(got.category, category);
     assert_eq!(got.branch_id, 10);
     assert_eq!(got.department_id, 20);
@@ -82,7 +82,7 @@ fn test_register_asset_duplicate() {
     let asset = Asset {
         id: id.clone(),
         name: name.clone(),
-        asset_type: AssetType::Furniture,
+        asset_type: AssetType::Physical,
         category: category.clone(),
         branch_id: 1,
         department_id: 2,
diff --git a/contracts/assetsup/src/tests/mod.rs b/contracts/assetsup/src/tests/mod.rs
index b9b57cb..201456d 100644
--- a/contracts/assetsup/src/tests/mod.rs
+++ b/contracts/assetsup/src/tests/mod.rs
@@ -1,2 +1,3 @@
 mod asset;
 mod initialize;
+mod types;
diff --git a/contracts/assetsup/src/tests/types.rs b/contracts/assetsup/src/tests/types.rs
new file mode 100644
index 0000000..d5402b3
--- /dev/null
+++ b/contracts/assetsup/src/tests/types.rs
@@ -0,0 +1,124 @@
+#![cfg(test)]
+
+use crate::types::*;
+
+#[test]
+fn test_asset_type_variants() {
+    // Test that all AssetType variants can be created
+    let physical = AssetType::Physical;
+    let digital = AssetType::Digital;
+
+    // Test equality
+    assert_eq!(physical, AssetType::Physical);
+    assert_eq!(digital, AssetType::Digital);
+    assert_ne!(physical, digital);
+
+    // Test cloning
+    let physical_clone = physical.clone();
+    assert_eq!(physical, physical_clone);
+}
+
+#[test]
+fn test_asset_status_variants() {
+    // Test that all AssetStatus variants can be created
+    let active = AssetStatus::Active;
+    let in_maintenance = AssetStatus::InMaintenance;
+    let disposed = AssetStatus::Disposed;
+
+    // Test equality
+    assert_eq!(active, AssetStatus::Active);
+    assert_eq!(in_maintenance, AssetStatus::InMaintenance);
+    assert_eq!(disposed, AssetStatus::Disposed);
+
+    // Test that they are different
+    assert_ne!(active, in_maintenance);
+    assert_ne!(active, disposed);
+    assert_ne!(in_maintenance, disposed);
+}
+
+#[test]
+fn test_action_type_variants() {
+    // Test that all ActionType variants can be created
+    let procured = ActionType::Procured;
+    let transferred = ActionType::Transferred;
+    let maintained = ActionType::Maintained;
+    let disposed = ActionType::Disposed;
+    let checked_in = ActionType::CheckedIn;
+    let checked_out = ActionType::CheckedOut;
+
+    // Test equality
+    assert_eq!(procured, ActionType::Procured);
+    assert_eq!(transferred, ActionType::Transferred);
+    assert_eq!(maintained, ActionType::Maintained);
+    assert_eq!(disposed, ActionType::Disposed);
+    assert_eq!(checked_in, ActionType::CheckedIn);
+    assert_eq!(checked_out, ActionType::CheckedOut);
+
+    // Test that they are different
+    assert_ne!(procured, transferred);
+    assert_ne!(checked_in, checked_out);
+}
+
+#[test]
+fn test_plan_type_variants() {
+    // Test that all PlanType variants can be created
+    let basic = PlanType::Basic;
+    let pro = PlanType::Pro;
+    let enterprise = PlanType::Enterprise;
+
+    // Test equality
+    assert_eq!(basic, PlanType::Basic);
+    assert_eq!(pro, PlanType::Pro);
+    assert_eq!(enterprise, PlanType::Enterprise);
+
+    // Test that they are different
+    assert_ne!(basic, pro);
+    assert_ne!(pro, enterprise);
+    assert_ne!(basic, enterprise);
+}
+
+#[test]
+fn test_subscription_status_variants() {
+    // Test that all SubscriptionStatus variants can be created
+    let active = SubscriptionStatus::Active;
+    let expired = SubscriptionStatus::Expired;
+    let cancelled = SubscriptionStatus::Cancelled;
+
+    // Test equality
+    assert_eq!(active, SubscriptionStatus::Active);
+    assert_eq!(expired, SubscriptionStatus::Expired);
+    assert_eq!(cancelled, SubscriptionStatus::Cancelled);
+
+    // Test that they are different
+    assert_ne!(active, expired);
+    assert_ne!(active, cancelled);
+    assert_ne!(expired, cancelled);
+}
+
+#[test]
+fn test_types_can_be_used_in_functions() {
+    // Test that types can be used as function parameters and return values
+    fn get_asset_type() -> AssetType {
+        AssetType::Physical
+    }
+
+    fn process_action(action: ActionType) -> bool {
+        match action {
+            ActionType::Procured => true,
+            ActionType::Transferred => true,
+            ActionType::Maintained => true,
+            ActionType::Disposed => false,
+            ActionType::CheckedIn => true,
+            ActionType::CheckedOut => true,
+        }
+    }
+
+    let asset_type = get_asset_type();
+    assert_eq!(asset_type, AssetType::Physical);
+
+    let result = process_action(ActionType::Procured);
+    assert!(result);
+
+    let result = process_action(ActionType::Disposed);
+    assert!(!result);
+}
diff --git a/contracts/assetsup/src/types.rs b/contracts/assetsup/src/types.rs
index 7339530..cd5ce28 100644
--- a/contracts/assetsup/src/types.rs
+++ b/contracts/assetsup/src/types.rs
@@ -1,22 +1,54 @@
 #![allow(clippy::upper_case_acronyms)]
 use soroban_sdk::contracttype;
 
+/// Represents the fundamental type of asset being managed
+/// Distinguishes between physical and digital assets for different handling requirements
 #[contracttype]
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum AssetType {
-    IT,
-    Furniture,
-    Vehicle,
-    RealEstate,
-    Machinery,
-    Other,
+    Physical,
+    Digital,
 }
 
+/// Represents the current operational status of an asset
+/// Used to track asset lifecycle and availability for use
 #[contracttype]
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub enum AssetStatus {
     Active,
-    Maintenance,
-    Retired,
+    InMaintenance,
     Disposed,
 }
+
+/// Represents different types of actions that can be performed on assets
+/// Used for audit trails and tracking asset lifecycle events
+#[contracttype]
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum ActionType {
+    Procured,
+    Transferred,
+    Maintained,
+    Disposed,
+    CheckedIn,
+    CheckedOut,
+}
+
+/// Represents different subscription plan tiers
+/// Used to determine feature access and usage limits
+#[contracttype]
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum PlanType {
+    Basic,
+    Pro,
+    Enterprise,
+}
+
+/// Represents the current status of a subscription
+/// Used to control access to platform features
+#[contracttype]
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum SubscriptionStatus {
+    Active,
+    Expired,
+    Cancelled,
+}