diff --git a/tests/functional/test_wps_package.py b/tests/functional/test_wps_package.py
index 8c00acf00..66513d724 100644
--- a/tests/functional/test_wps_package.py
+++ b/tests/functional/test_wps_package.py
@@ -1817,28 +1817,32 @@ def test_enum_array_and_multi_format_inputs_from_wps_xml_reference(self):
         assert "format" not in pkg["inputs"][0]
         assert isinstance(pkg["inputs"][0]["type"], list)
         # single entry of enum allowed values
-        assert len(pkg["inputs"][0]["type"]) == 2, "single type and array type of same base"
-        assert isinstance(pkg["inputs"][0]["type"][0], dict), "enum base type expected since allowed values"
-        assert pkg["inputs"][0]["type"][0]["type"] == "enum"
-        assert isinstance(pkg["inputs"][0]["type"][0]["symbols"], list)
-        assert len(pkg["inputs"][0]["type"][0]["symbols"]) == 220
-        assert all(isinstance(s, str) for s in pkg["inputs"][0]["type"][0]["symbols"])
+        assert len(pkg["inputs"][0]["type"]) == 3, "default value (null) + single type + array type of same base"
+        assert pkg["inputs"][0]["type"][0] == "null", "XML defaultValue should result in 'null' as valid unspecified"
+        assert "default" in pkg["inputs"][0]
+        assert pkg["inputs"][0]["default"] == "DEU", "CWL default value should match extracted defaultValue from XML"
+        assert isinstance(pkg["inputs"][0]["type"][1], dict), "enum base type expected since allowed values"
+        assert pkg["inputs"][0]["type"][1]["type"] == "enum"
+        assert isinstance(pkg["inputs"][0]["type"][1]["symbols"], list)
+        assert len(pkg["inputs"][0]["type"][1]["symbols"]) == 220
+        assert all(isinstance(s, str) for s in pkg["inputs"][0]["type"][1]["symbols"])
         # array type of same enum allowed values
-        assert pkg["inputs"][0]["type"][1]["type"] == "array"
-        assert pkg["inputs"][0]["type"][1]["items"]["type"] == "enum"
-        assert isinstance(pkg["inputs"][0]["type"][1]["items"]["symbols"], list)
-        assert len(pkg["inputs"][0]["type"][1]["items"]["symbols"]) == 220
-        assert all(isinstance(s, str) for s in pkg["inputs"][0]["type"][1]["items"]["symbols"])
+        assert pkg["inputs"][0]["type"][2]["type"] == "array"
+        assert pkg["inputs"][0]["type"][2]["items"]["type"] == "enum"
+        assert isinstance(pkg["inputs"][0]["type"][2]["items"]["symbols"], list)
+        assert len(pkg["inputs"][0]["type"][2]["items"]["symbols"]) == 220
+        assert all(isinstance(s, str) for s in pkg["inputs"][0]["type"][2]["items"]["symbols"])
         # second input
         assert pkg["inputs"][1]["id"] == "mosaic"
         assert pkg["inputs"][1]["default"] == "null"
         assert "format" not in pkg["inputs"][1]
         assert isinstance(pkg["inputs"][1]["type"], list), "default 'null' result type formed with it"
         assert len(pkg["inputs"][1]["type"]) == 2
-        assert pkg["inputs"][1]["type"][0] == "null"
+        assert pkg["inputs"][1]["type"][0] == "null", "CWL omitted input expect from minOccurs=0 from WPS input"
         assert pkg["inputs"][1]["type"][1] == "boolean"
         assert pkg["inputs"][2]["id"] == "resource"
-        assert "default" not in pkg["inputs"][2]
+        assert "default" not in pkg["inputs"][2], \
+            "WPS 'default format media-type' with minOccurs=1 must not result in CWL input with 'default' value"
         assert isinstance(pkg["inputs"][2]["type"], list), "single and array File"
         assert len(pkg["inputs"][2]["type"]) == 2
         assert pkg["inputs"][2]["type"][0] == "File", "single File type"
@@ -1861,8 +1865,14 @@ def test_enum_array_and_multi_format_inputs_from_wps_xml_reference(self):
         assert proc["inputs"][0]["title"] == "Region"
         assert "abstract" not in proc["inputs"][0], "Field 'abstract' should be replaced by 'description'."
         assert proc["inputs"][0]["description"] == "Country code, see ISO-3166-3"
-        assert proc["inputs"][0]["minOccurs"] == 1
+        assert proc["inputs"][0]["minOccurs"] == 0, \
+            "Real XML indicates 'minOccurs=1' but also has 'defaultValue', Weaver should correct it."
         assert proc["inputs"][0]["maxOccurs"] == 220
+        assert "literalDataDomains" in proc["inputs"][0]
+        assert "defaultValue" in proc["inputs"][0]["literalDataDomains"][0]
+        assert len(proc["inputs"][0]["literalDataDomains"][0]["valueDefinition"]) == 220, \
+            "List of all 220 region abbreviation explicitly provided is expected."
+        assert proc["inputs"][0]["literalDataDomains"][0]["defaultValue"] == "DEU"
         assert "formats" not in proc["inputs"][0]
         assert proc["inputs"][1]["id"] == "mosaic"
         assert proc["inputs"][1]["title"] == "Union of multiple regions"
diff --git a/tests/processes/test_convert.py b/tests/processes/test_convert.py
index 674a42386..ea1f7ca23 100644
--- a/tests/processes/test_convert.py
+++ b/tests/processes/test_convert.py
@@ -16,6 +16,7 @@
 from weaver.processes.convert import (
     DEFAULT_FORMAT,
     PACKAGE_ARRAY_MAX_SIZE,
+    any2cwl_io,
     cwl2wps_io,
     is_cwl_array_type,
     is_cwl_enum_type,
diff --git a/tests/processes/test_wps_package.py b/tests/processes/test_wps_package.py
index 22883db6b..7aa67a8e9 100644
--- a/tests/processes/test_wps_package.py
+++ b/tests/processes/test_wps_package.py
@@ -247,7 +247,7 @@ def test_stdout_stderr_logging_for_commandline_tool_success():
     Execute a process and assert that stdout is correctly logged to log file upon successful process execution.
     """
     with contextlib.ExitStack() as stack:
-        xml_file = stack.enter_context(tempfile.NamedTemporaryFile(suffix=".xml"))
+        xml_file = stack.enter_context(tempfile.NamedTemporaryFile(suffix=".xml"))  # noqa
         workdir = stack.enter_context(tempfile.TemporaryDirectory())
         process = MockProcess(shell_command="echo")
         wps_package_instance = MockWpsPackage(identifier=process["id"], title=process["title"],
@@ -273,7 +273,7 @@ def test_stdout_stderr_logging_for_commandline_tool_failure():
     Execute a process and assert that stderr is correctly logged to log file upon failing process execution.
     """
     with contextlib.ExitStack() as stack:
-        xml_file = stack.enter_context(tempfile.NamedTemporaryFile(suffix=".xml"))
+        xml_file = stack.enter_context(tempfile.NamedTemporaryFile(suffix=".xml"))  # noqa
         workdir = stack.enter_context(tempfile.TemporaryDirectory())
         process = MockProcess(shell_command="not_existing_command")
     wps_package_instance = MockWpsPackage(identifier=process["id"], title=process["title"],
diff --git a/weaver/processes/convert.py b/weaver/processes/convert.py
index 6cf271d45..ebd1dab41 100644
--- a/weaver/processes/convert.py
+++ b/weaver/processes/convert.py
@@ -276,9 +276,9 @@ def ows2json_io(ows_io):
             if fmt["default"]:
                 break
 
-        # fix inconsistencies of some process descriptions, both with minOccurs=1 and default format
-        if fmt_default:
-            json_io["min_occurs"] = 0
+        # NOTE:
+        #   Don't apply 'minOccurs=0' as in below literal case because default 'format' does not imply that unspecified
+        #   input is valid, but rather that given an input without explicit 'format' specified, that 'default' is used.
         return json_io
 
     # add value contrains specifications if missing