updated template and readme for rule run status

README.md

@@ -330,8 +330,14 @@ The rules report tab displays the run status of each rule selected for validatio
 
 The possible rule run statuses are:
 
-- `SUCCESS` - The rule ran and data was validated against the rule. May or may not produce results
-- `SKIPPED` - The rule was unable to be run. Usually due to missing required data, but could also be cause by rule execution errors.
+- `SUCCESS` - The rule ran, data was validated, and no issues were reported.
+- `SKIPPED` - The rule was unable to be run for one of the following reasons:
+  - Column not found in data
+  - Domain not found
+  - Schema validation is off
+  - Outside scope
+- `ISSUE REPORTED` - The rule ran, data was validated, and issues were reported
+- `EXECUTION ERROR` - The validation failed for an unknown reason caused by rule evaluation or execution. Error details are found in the `Issue Details` tab.
 
 #### Setting DATASET_SIZE_THRESHOLD for Large Datasets
 

cdisc_rules_engine/enums/execution_status.py

@@ -4,9 +4,9 @@
 class ExecutionStatus(BaseEnum):
     SUCCESS = "success"
     SKIPPED = "skipped"
-    EXECUTION_ERROR = "execution_error"
-    ISSUE_REPORTED = "issue_reported"
-    UNKNOWN_STATUS = "unknown_status"
+    EXECUTION_ERROR = "execution error"
+    ISSUE_REPORTED = "issue reported"
+    UNKNOWN_STATUS = "unknown status"
 
 
 class SkippedReason(BaseEnum):