diff --git a/pygeoweaver/database_management/pgw_checkpoint.py b/pygeoweaver/database_management/pgw_checkpoint.py
new file mode 100644
index 0000000..b904562
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_checkpoint.py
@@ -0,0 +1,12 @@
+from pydantic import BaseModel
+from typing import Optional
+import uuid
+from datetime import datetime
+
+class Checkpoint(BaseModel):
+    id: Optional[uuid.UUID]
+    executionId: str
+    edges: str
+    nodes: str
+    workflow: Optional[str]
+    createdAt: Optional[datetime]
diff --git a/pygeoweaver/database_management/pgw_environment.py b/pygeoweaver/database_management/pgw_environment.py
new file mode 100644
index 0000000..ee55fd0
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_environment.py
@@ -0,0 +1,12 @@
+from pydantic import BaseModel, Field
+from typing import Optional
+
+class Environment(BaseModel):
+    id: str
+    name: str
+    type: str
+    bin: str
+    pyenv: str
+    basedir: str
+    hostid: Optional[str] = None  # Use Optional to allow for null values
+    settings: Optional[str] = None  # Use Optional to allow for null values
diff --git a/pygeoweaver/database_management/pgw_execution_status.py b/pygeoweaver/database_management/pgw_execution_status.py
new file mode 100644
index 0000000..643c7cc
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_execution_status.py
@@ -0,0 +1,8 @@
+class ExecutionStatus:
+    DONE = "Done"
+    FAILED = "Failed"
+    RUNNING = "Running"
+    UNKNOWN = "Unknown"
+    STOPPED = "Stopped"
+    READY = "Ready"
+    SKIPPED = "Skipped"
diff --git a/pygeoweaver/database_management/pgw_host.py b/pygeoweaver/database_management/pgw_host.py
new file mode 100644
index 0000000..c08a43e
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_host.py
@@ -0,0 +1,15 @@
+from pydantic import BaseModel, Field
+from typing import Optional, Set
+
+class Host(BaseModel):
+    id: str
+    name: str
+    ip: str
+    port: str
+    username: str
+    owner: str
+    type: str
+    url: str
+    confidential: bool
+    envs: Optional[Set[str]] = None
+
diff --git a/pygeoweaver/database_management/pgw_log_activity.py b/pygeoweaver/database_management/pgw_log_activity.py
new file mode 100644
index 0000000..3ca089e
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_log_activity.py
@@ -0,0 +1,10 @@
+from pydantic import BaseModel
+
+class LogActivity(BaseModel):
+    id: str
+    operator: str
+    category: str
+    objectid: str
+    objname: str
+    operation: str
+    
\ No newline at end of file
diff --git a/pygeoweaver/database_management/pgw_process.py b/pygeoweaver/database_management/pgw_process.py
new file mode 100644
index 0000000..f45e993
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_process.py
@@ -0,0 +1,12 @@
+from pydantic import BaseModel
+from typing import Optional
+
+class GWProcess(BaseModel):
+    id: str
+    name: Optional[str]
+    description: Optional[str]
+    code: Optional[str]
+    lang: Optional[str]
+    owner: Optional[str]
+    confidential: Optional[bool]
+
diff --git a/pygeoweaver/database_management/pgw_user.py b/pygeoweaver/database_management/pgw_user.py
new file mode 100644
index 0000000..121c51f
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_user.py
@@ -0,0 +1,15 @@
+from pydantic import BaseModel
+from typing import Optional
+from datetime import date
+from typing import Optional
+
+class GWUser(BaseModel):
+    id: str
+    username: str
+    password: str
+    role: Optional[str]
+    email: Optional[str]
+    isactive: Optional[bool]
+    registration_date: Optional[date]
+    last_login_date: Optional[date]
+    loggedIn: Optional[bool]
diff --git a/pygeoweaver/database_management/pgw_workflow.py b/pygeoweaver/database_management/pgw_workflow.py
new file mode 100644
index 0000000..c5dbfa0
--- /dev/null
+++ b/pygeoweaver/database_management/pgw_workflow.py
@@ -0,0 +1,11 @@
+from pydantic import BaseModel
+from typing import Optional
+
+class Workflow(BaseModel):
+    id: str
+    name: Optional[str]
+    description: Optional[str]
+    owner: Optional[str]
+    confidential: Optional[str]
+    edges: Optional[str]
+    nodes: Optional[str]