diff --git a/pyoaev/contracts/contract_config.py b/pyoaev/contracts/contract_config.py
index 56de12f..ac410aa 100644
--- a/pyoaev/contracts/contract_config.py
+++ b/pyoaev/contracts/contract_config.py
@@ -120,6 +120,15 @@ class ContractConfig:
     color_light: str
 
 
+@dataclass
+class Domain:
+    domain_id: str
+    domain_name: str
+    domain_color: str
+    domain_created_at: str
+    domain_updated_at: str
+
+
 @dataclass
 class Contract:
     contract_id: str
@@ -141,6 +150,7 @@ class Contract:
     is_atomic_testing: bool = True
     platforms: List[str] = field(default_factory=list)
     external_id: str = None
+    domains: List[Domain] = None
 
     def add_attack_pattern(self, var: str):
         self.contract_attack_patterns_external_ids.append(var)
@@ -163,6 +173,7 @@ def to_contract_add_input(self, source_id: str):
             "contract_content": json.dumps(self, cls=utils.EnhancedJSONEncoder),
             "is_atomic_testing": self.is_atomic_testing,
             "contract_platforms": self.platforms,
+            "contract_domains": self.domains,
         }
 
     def to_contract_update_input(self):
@@ -174,6 +185,7 @@ def to_contract_update_input(self):
             "contract_content": json.dumps(self, cls=utils.EnhancedJSONEncoder),
             "is_atomic_testing": self.is_atomic_testing,
             "contract_platforms": self.platforms,
+            "contract_domains": self.domains,
         }
 
 
@@ -203,6 +215,7 @@ def prepare_contracts(contracts):
                 "contract_attack_patterns_external_ids": c.contract_attack_patterns_external_ids,
                 "contract_content": json.dumps(c, cls=utils.EnhancedJSONEncoder),
                 "contract_platforms": c.platforms,
+                "contract_domains": c.domains,
             },
             contracts,
         )
diff --git a/pyoaev/security_domain/__init__.py b/pyoaev/security_domain/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/pyoaev/security_domain/types.py b/pyoaev/security_domain/types.py
new file mode 100644
index 0000000..b43e09c
--- /dev/null
+++ b/pyoaev/security_domain/types.py
@@ -0,0 +1,16 @@
+from enum import Enum
+
+
+class SecurityDomains(Enum):
+    ENDPOINT = {"domain_name": "Endpoint", "domain_color": "#389CFF"}
+    NETWORK = {"domain_name": "Network", "domain_color": "#009933"}
+    WEB_APP = {"domain_name": "Web App", "domain_color": "#FF9933"}
+    EMAIL_INFILTRATION = {
+        "domain_name": "E-mail Infiltration",
+        "domain_color": "#FF6666",
+    }
+    DATA_EXFILTRATION = {"domain_name": "Data Exfiltration", "domain_color": "#9933CC"}
+    URL_FILTERING = {"domain_name": "Url Filtering", "domain_color": "#66CCFF"}
+    CLOUD = {"domain_name": "Cloud", "domain_color": "#9999CC"}
+    TABLE_TOP = {"domain_name": "Table Top", "domain_color": "#FFCC33"}
+    TOCLASSIFY = {"domain_name": "To classify", "domain_color": "#FFFFFF"}