diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/models/json_data.py b/spiffworkflow-backend/src/spiffworkflow_backend/models/json_data.py
index 103bdc57..0723a50a 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/models/json_data.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/models/json_data.py
@@ -4,6 +4,22 @@ from spiffworkflow_backend.models.db import db
 from spiffworkflow_backend.models.db import SpiffworkflowBaseDBModel
 
 
+# delta algorithm <- just to save it for when we want to try to implement it:
+#   a = {"hey": { "hey2": 2, "hey3": 3, "hey6": 7 }, "hey30": 3, "hey40": 4}
+#   b = {"hey": { "hey2": 4, "hey5": 3 }, "hey20": 2, "hey30": 3}
+#   a_keys = set(a.keys())
+#   b_keys = set(b.keys())
+#   removed = a_keys - b_keys
+#   added_keys = b_keys - a_keys
+#   keys_present_in_both = a_keys & b_keys
+#   changed = {}
+#   for key_in_both in keys_present_in_both:
+#       if a[key_in_both] != b[key_in_both]:
+#           changed[key_in_both] = b[key_in_both]
+#   added = {}
+#   for added_key in added_keys:
+#       added[added_key] = b[added_key]
+#   final_tuple = [added, removed, changed]
 class JsonDataModel(SpiffworkflowBaseDBModel):
     __tablename__ = "json_data"
     id: int = db.Column(db.Integer, primary_key=True)
diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/models/spiff_step_details.py b/spiffworkflow-backend/src/spiffworkflow_backend/models/spiff_step_details.py
index 6b91bafa..713bd3cd 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/models/spiff_step_details.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/models/spiff_step_details.py
@@ -10,145 +10,6 @@ from spiffworkflow_backend.models.db import db
 from spiffworkflow_backend.models.db import SpiffworkflowBaseDBModel
 from spiffworkflow_backend.models.process_instance import ProcessInstanceModel
 
-# process_instance:
-#   process_model_definition_id
-#   process_id
-
-
-#   "bpmn_messages",
-#   "correlations",
-#   "subprocesses", <-- omit from json
-#
-#   also in subprocesses
-#   "data",
-#   "tasks" <-- omit from json
-#   "last_task", # guid generated by spiff
-#   "root", # guid generated by spiff
-#   "success", # boolean
-#
-# runtime_json:
-#   "last_task", # guid generated by spiff
-#   "root", # guid generated by spiff
-#   "success", # boolean
-#   "bpmn_messages", # if top-level process
-#   "correlations", # if top-level process
-# process:
-#   id
-#   parent_process_id
-#   runtime_json <-- minus tasks and subproceses
-#   type <-- subprocess, top_level_process
-#   data
-
-# runtime_json:
-#   "id": "a56e1403-2838-4f03-a31f-f99afe16f38d",
-#   "parent": null,
-#   "children": [
-#     "af6ba340-71e7-46d7-b2d4-e3db1751785d"
-#   ],
-#   "last_state_change": 1677775475.18116,
-#   "state": 32,
-#   "task_spec": "Root",
-#   "triggered": false,
-#   "workflow_name": "Process_category_number_one_call_activity_call_activity_test_bd2e724",
-#   "internal_data": {},
-# "data": {}
-# task:
-#   id
-#   guid
-#   process_id
-#   task_definition_id
-#   state <-- store string value
-#   runtime_json
-#   data
-
-# ### workflow
-# "io_specification": null,
-# "data_objects": {},
-# "correlation_keys": {},
-# "typename": "BpmnProcessSpec"
-# "name": "Process_category_number_one_call_activity_call_activity_test_bd2e724",
-# "description": "Process_category_number_one_call_activity_call_activity_test_bd2e724",
-# "file": "call_activity_test.bpmn",
-# "task_specs": {}
-
-# ### definition
-# "Root": {
-#   "id": "Process_category_number_one_call_activity_call_activity_test_bd2e724_8",
-#   "name": "Root",
-#   "description": "",
-#   "manual": false,
-#   "internal": false,
-#   "lookahead": 2,
-#   "inputs": [],
-#   "outputs": [],
-#   "typename": "Simple"
-# }
-# ## runtime
-# "a56e1403-2838-4f03-a31f-f99afe16f38d": {
-#   "id": "a56e1403-2838-4f03-a31f-f99afe16f38d",
-#   "parent": null,
-#   "children": [
-#     "af6ba340-71e7-46d7-b2d4-e3db1751785d"
-#   ],
-#   "last_state_change": 1677775475.18116,
-#   "state": 32,
-#   "task_spec": "Root",
-#   "triggered": false,
-#   "workflow_name": "Process_category_number_one_call_activity_call_activity_test_bd2e724",
-#   "internal_data": {},
-#   "data": {}
-# },
-
-
-# ### definition
-# "StartEvent_1": {
-#   "id": "Process_category_number_one_call_activity_call_activity_test_bd2e724_4",
-#   "name": "StartEvent_1",
-#   "description": null,
-#   "manual": false,
-#   "internal": false,
-#   "lookahead": 2,
-#   "inputs": [
-#     "Start"
-#   ],
-#   "outputs": [
-#     "same_process_model"
-#   ],
-#   "lane": null,
-#   "documentation": null,
-#   "position": {
-#     "x": 179,
-#     "y": 159
-#   },
-#   "data_input_associations": [],
-#   "data_output_associations": [],
-#   "io_specification": null,
-#   "event_definition": {
-#     "internal": false,
-#     "external": false,
-#     "typename": "NoneEventDefinition"
-#   },
-#   "typename": "StartEvent",
-#   "extensions": {}
-# },
-# ## runtime
-# "b86b5552-c541-4afe-b200-db0190439f38": {
-#   "id": "b86b5552-c541-4afe-b200-db0190439f38",
-#   "parent": "af6ba340-71e7-46d7-b2d4-e3db1751785d",
-#   "children": [
-#     "e9525f55-794f-450d-b5da-bee1951f99fc"
-#   ],
-#   "last_state_change": 1677775475.1963174,
-#   "state": 32,
-#   "task_spec": "StartEvent_1",
-#   "triggered": false,
-#   "workflow_name": "Process_category_number_one_call_activity_call_activity_test_bd2e724",
-#   "internal_data": {
-#     "event_fired": true
-#   },
-#   "data": {}
-# },
-
 
 @dataclass
 class SpiffStepDetailsModel(SpiffworkflowBaseDBModel):