Mass renames. (#33847)

diff --git a/src/BUILD.gn b/src/BUILD.gn
index 0c7597b..c6c8fa9 100644
--- a/src/BUILD.gn
+++ b/src/BUILD.gn
@@ -55,8 +55,8 @@
   chip_test_group("tests") {
     deps = []
     tests = [
-      "${chip_root}/src/app/codegen-interaction-model/tests",
-      "${chip_root}/src/app/interaction-model/tests",
+      "${chip_root}/src/app/codegen-data-model/tests",
+      "${chip_root}/src/app/data-model-interface/tests",
       "${chip_root}/src/access/tests",
       "${chip_root}/src/crypto/tests",
       "${chip_root}/src/inet/tests",
diff --git a/src/app/codegen-interaction-model/BUILD.gn b/src/app/codegen-data-model/BUILD.gn
similarity index 100%
rename from src/app/codegen-interaction-model/BUILD.gn
rename to src/app/codegen-data-model/BUILD.gn
diff --git a/src/app/codegen-interaction-model/CodegenDataModel.cpp b/src/app/codegen-data-model/CodegenDataModel.cpp
similarity index 99%
rename from src/app/codegen-interaction-model/CodegenDataModel.cpp
rename to src/app/codegen-data-model/CodegenDataModel.cpp
index f917a8e..e1597db 100644
--- a/src/app/codegen-interaction-model/CodegenDataModel.cpp
+++ b/src/app/codegen-data-model/CodegenDataModel.cpp
@@ -14,7 +14,7 @@
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
  */
-#include <app/codegen-interaction-model/CodegenDataModel.h>
+#include <app/codegen-data-model/CodegenDataModel.h>
 
 #include <app-common/zap-generated/attribute-type.h>
 #include <app/RequiredPrivilege.h>
diff --git a/src/app/codegen-interaction-model/CodegenDataModel.h b/src/app/codegen-data-model/CodegenDataModel.h
similarity index 97%
rename from src/app/codegen-interaction-model/CodegenDataModel.h
rename to src/app/codegen-data-model/CodegenDataModel.h
index 43117fa..f8d9974 100644
--- a/src/app/codegen-interaction-model/CodegenDataModel.h
+++ b/src/app/codegen-data-model/CodegenDataModel.h
@@ -16,7 +16,7 @@
  */
 #pragma once
 
-#include <app/interaction-model/Model.h>
+#include <app/data-model-interface/DataModel.h>
 
 #include <app/util/af-types.h>
 
@@ -35,7 +35,7 @@
 /// Given that this relies on global data at link time, there generally can be
 /// only one CodegenDataModel per application (you can create more instances,
 /// however they would share the exact same underlying data and storage).
-class CodegenDataModel : public chip::app::InteractionModel::Model
+class CodegenDataModel : public chip::app::InteractionModel::DataModel
 {
 private:
     /// Ember commands are stored as a `CommandId *` pointer that is either null (i.e. no commands)
diff --git a/src/app/codegen-interaction-model/model.gni b/src/app/codegen-data-model/model.gni
similarity index 87%
rename from src/app/codegen-interaction-model/model.gni
rename to src/app/codegen-data-model/model.gni
index d1c4e85..c8dce56 100644
--- a/src/app/codegen-interaction-model/model.gni
+++ b/src/app/codegen-data-model/model.gni
@@ -25,11 +25,11 @@
 # be cleanly built as a stand-alone and instead have to be imported as part of
 # a different data model or compilation unit.
 codegen_interaction_model_SOURCES = [
-  "${chip_root}/src/app/codegen-interaction-model/CodegenDataModel.h",
-  "${chip_root}/src/app/codegen-interaction-model/CodegenDataModel.cpp",
+  "${chip_root}/src/app/codegen-data-model/CodegenDataModel.h",
+  "${chip_root}/src/app/codegen-data-model/CodegenDataModel.cpp",
 ]
 
 codegen_interaction_model_PUBLIC_DEPS = [
   "${chip_root}/src/app/common:attribute-type",
-  "${chip_root}/src/app/interaction-model",
+  "${chip_root}/src/app/data-model-interface",
 ]
diff --git a/src/app/codegen-interaction-model/tests/BUILD.gn b/src/app/codegen-data-model/tests/BUILD.gn
similarity index 94%
rename from src/app/codegen-interaction-model/tests/BUILD.gn
rename to src/app/codegen-data-model/tests/BUILD.gn
index f543bc8..a385718 100644
--- a/src/app/codegen-interaction-model/tests/BUILD.gn
+++ b/src/app/codegen-data-model/tests/BUILD.gn
@@ -13,7 +13,7 @@
 # limitations under the License.
 import("//build_overrides/chip.gni")
 import("${chip_root}/build/chip/chip_test_suite.gni")
-import("${chip_root}/src/app/codegen-interaction-model/model.gni")
+import("${chip_root}/src/app/codegen-data-model/model.gni")
 
 source_set("mock_model") {
   sources = codegen_interaction_model_SOURCES
diff --git a/src/app/codegen-interaction-model/tests/TestCodegenModelViaMocks.cpp b/src/app/codegen-data-model/tests/TestCodegenModelViaMocks.cpp
similarity index 99%
rename from src/app/codegen-interaction-model/tests/TestCodegenModelViaMocks.cpp
rename to src/app/codegen-data-model/tests/TestCodegenModelViaMocks.cpp
index e8175bf..4403303 100644
--- a/src/app/codegen-interaction-model/tests/TestCodegenModelViaMocks.cpp
+++ b/src/app/codegen-data-model/tests/TestCodegenModelViaMocks.cpp
@@ -15,7 +15,7 @@
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
  */
-#include <app/codegen-interaction-model/CodegenDataModel.h>
+#include <app/codegen-data-model/CodegenDataModel.h>
 
 #include <app/util/mock/Constants.h>
 #include <app/util/mock/Functions.h>
diff --git a/src/app/interaction-model/ActionContext.h b/src/app/data-model-interface/ActionContext.h
similarity index 100%
rename from src/app/interaction-model/ActionContext.h
rename to src/app/data-model-interface/ActionContext.h
diff --git a/src/app/interaction-model/BUILD.gn b/src/app/data-model-interface/BUILD.gn
similarity index 91%
rename from src/app/interaction-model/BUILD.gn
rename to src/app/data-model-interface/BUILD.gn
index 19dd3de..65cde75 100644
--- a/src/app/interaction-model/BUILD.gn
+++ b/src/app/data-model-interface/BUILD.gn
@@ -13,17 +13,17 @@
 # limitations under the License.
 import("//build_overrides/chip.gni")
 
-source_set("interaction-model") {
+source_set("data-model-interface") {
   sources = [
     "ActionContext.h",
     "Context.h",
-    "Events.h",
+    "DataModel.h",
+    "DataModelChangeListener.h",
+    "EventsGenerator.h",
     "InvokeResponder.h",
     "MetadataTypes.cpp",
     "MetadataTypes.h",
-    "Model.h",
     "OperationTypes.h",
-    "Paths.h",
   ]
 
   public_deps = [
diff --git a/src/app/interaction-model/Context.h b/src/app/data-model-interface/Context.h
similarity index 82%
rename from src/app/interaction-model/Context.h
rename to src/app/data-model-interface/Context.h
index 5f7f442..1ccfd1e 100644
--- a/src/app/interaction-model/Context.h
+++ b/src/app/data-model-interface/Context.h
@@ -16,9 +16,9 @@
  */
 #pragma once
 
-#include <app/interaction-model/ActionContext.h>
-#include <app/interaction-model/Events.h>
-#include <app/interaction-model/Paths.h>
+#include <app/data-model-interface/ActionContext.h>
+#include <app/data-model-interface/DataModelChangeListener.h>
+#include <app/data-model-interface/EventsGenerator.h>
 
 namespace chip {
 namespace app {
@@ -31,8 +31,8 @@
 /// as well as fetching current state (via actionContext)
 struct InteractionModelContext
 {
-    Events * events;
-    Paths * paths;
+    EventsGenerator * eventsGenerator;
+    DataModelChangeListener * dataModelChangeListener;
     ActionContext * actionContext;
 };
 
diff --git a/src/app/interaction-model/Model.h b/src/app/data-model-interface/DataModel.h
similarity index 94%
rename from src/app/interaction-model/Model.h
rename to src/app/data-model-interface/DataModel.h
index 5ab9739..0ecfd6f 100644
--- a/src/app/interaction-model/Model.h
+++ b/src/app/data-model-interface/DataModel.h
@@ -22,10 +22,10 @@
 #include <app/AttributeValueDecoder.h>
 #include <app/AttributeValueEncoder.h>
 
-#include <app/interaction-model/Context.h>
-#include <app/interaction-model/InvokeResponder.h>
-#include <app/interaction-model/MetadataTypes.h>
-#include <app/interaction-model/OperationTypes.h>
+#include <app/data-model-interface/Context.h>
+#include <app/data-model-interface/InvokeResponder.h>
+#include <app/data-model-interface/MetadataTypes.h>
+#include <app/data-model-interface/OperationTypes.h>
 
 namespace chip {
 namespace app {
@@ -38,10 +38,10 @@
 ///     thread or equivalent
 ///   - class is allowed to attempt to cache indexes/locations for faster
 ///     lookups of things (e.g during iterations)
-class Model : public DataModelMetadataTree
+class DataModel : public DataModelMetadataTree
 {
 public:
-    virtual ~Model() = default;
+    virtual ~DataModel() = default;
 
     // `context` pointers  will be guaranteed valid until Shutdown is called()
     virtual CHIP_ERROR Startup(InteractionModelContext context)
diff --git a/src/app/interaction-model/Paths.h b/src/app/data-model-interface/DataModelChangeListener.h
similarity index 89%
rename from src/app/interaction-model/Paths.h
rename to src/app/data-model-interface/DataModelChangeListener.h
index 9241222..37c278c 100644
--- a/src/app/interaction-model/Paths.h
+++ b/src/app/data-model-interface/DataModelChangeListener.h
@@ -22,7 +22,8 @@
 namespace app {
 namespace InteractionModel {
 
-/// Notification listener for attribute changes.
+/// Notification listener for changes of the underlying data in a
+/// data model.
 ///
 /// Used to notify that a specific attribute path (or several attributes
 /// via wildcards) have changed their underlying content.
@@ -30,10 +31,10 @@
 /// Methods on this class MUST be called from within the matter
 /// main loop as they will likely trigger interaction model
 /// internal updates and subscription data reporting.
-class Paths
+class DataModelChangeListener
 {
 public:
-    virtual ~Paths() = 0;
+    virtual ~DataModelChangeListener() = 0;
 
     /// Mark all attributes matching the given path (which may be a wildcard) dirty.
     ///
diff --git a/src/app/interaction-model/Events.h b/src/app/data-model-interface/EventsGenerator.h
similarity index 97%
rename from src/app/interaction-model/Events.h
rename to src/app/data-model-interface/EventsGenerator.h
index 0fc3fc5..b37d510 100644
--- a/src/app/interaction-model/Events.h
+++ b/src/app/data-model-interface/EventsGenerator.h
@@ -104,14 +104,14 @@
 
 } // namespace internal
 
-/// Exposes event access capabilities.
+/// Exposes event generation capabilities.
 ///
 /// Allows callers to "generate events" which effectively notifies of an event having
 /// ocurred.
-class Events
+class EventsGenerator
 {
 public:
-    virtual ~Events() = default;
+    virtual ~EventsGenerator() = default;
 
     /// Generates the given event.
     ///
diff --git a/src/app/interaction-model/InvokeResponder.h b/src/app/data-model-interface/InvokeResponder.h
similarity index 100%
rename from src/app/interaction-model/InvokeResponder.h
rename to src/app/data-model-interface/InvokeResponder.h
diff --git a/src/app/interaction-model/MetadataTypes.cpp b/src/app/data-model-interface/MetadataTypes.cpp
similarity index 95%
rename from src/app/interaction-model/MetadataTypes.cpp
rename to src/app/data-model-interface/MetadataTypes.cpp
index 48c2e3d..92104b9 100644
--- a/src/app/interaction-model/MetadataTypes.cpp
+++ b/src/app/data-model-interface/MetadataTypes.cpp
@@ -14,7 +14,7 @@
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
  */
-#include <app/interaction-model/MetadataTypes.h>
+#include <app/data-model-interface/MetadataTypes.h>
 
 namespace chip {
 namespace app {
diff --git a/src/app/interaction-model/MetadataTypes.h b/src/app/data-model-interface/MetadataTypes.h
similarity index 100%
rename from src/app/interaction-model/MetadataTypes.h
rename to src/app/data-model-interface/MetadataTypes.h
diff --git a/src/app/interaction-model/OperationTypes.h b/src/app/data-model-interface/OperationTypes.h
similarity index 100%
rename from src/app/interaction-model/OperationTypes.h
rename to src/app/data-model-interface/OperationTypes.h
diff --git a/src/app/interaction-model/tests/BUILD.gn b/src/app/data-model-interface/tests/BUILD.gn
similarity index 92%
rename from src/app/interaction-model/tests/BUILD.gn
rename to src/app/data-model-interface/tests/BUILD.gn
index 4767d61..f366ee7 100644
--- a/src/app/interaction-model/tests/BUILD.gn
+++ b/src/app/data-model-interface/tests/BUILD.gn
@@ -21,5 +21,5 @@
 
   cflags = [ "-Wconversion" ]
 
-  public_deps = [ "${chip_root}/src/app/interaction-model" ]
+  public_deps = [ "${chip_root}/src/app/data-model-interface" ]
 }
diff --git a/src/app/interaction-model/tests/TestEventEmitting.cpp b/src/app/data-model-interface/tests/TestEventEmitting.cpp
similarity index 96%
rename from src/app/interaction-model/tests/TestEventEmitting.cpp
rename to src/app/data-model-interface/tests/TestEventEmitting.cpp
index 3196636..81a89f1 100644
--- a/src/app/interaction-model/tests/TestEventEmitting.cpp
+++ b/src/app/data-model-interface/tests/TestEventEmitting.cpp
@@ -17,8 +17,8 @@
  */
 
 #include <app-common/zap-generated/cluster-objects.h>
+#include <app/data-model-interface/EventsGenerator.h>
 #include <app/data-model/Decode.h>
-#include <app/interaction-model/Events.h>
 #include <lib/support/CodeUtils.h>
 
 #include <gtest/gtest.h>
@@ -36,7 +36,7 @@
 
 /// Keeps the "last event" in-memory to allow tests to validate
 /// that event writing and encoding worked.
-class LogOnlyEvents : public Events
+class LogOnlyEvents : public EventsGenerator
 {
 public:
     CHIP_ERROR GenerateEvent(EventLoggingDelegate * eventContentWriter, const EventOptions & options,
@@ -96,7 +96,7 @@
 TEST(TestInteractionModelEventEmitting, TestBasicType)
 {
     LogOnlyEvents logOnlyEvents;
-    Events * events = &logOnlyEvents;
+    EventsGenerator * events = &logOnlyEvents;
 
     StartUpEventType event{ kFakeSoftwareVersion };
 
@@ -131,7 +131,7 @@
     static_assert(kTestFabricIndex != kUndefinedFabricIndex);
 
     LogOnlyEvents logOnlyEvents;
-    Events * events = &logOnlyEvents;
+    EventsGenerator * events = &logOnlyEvents;
 
     AccessControlEntryChangedType event;
     event.adminNodeID     = chip::app::DataModel::MakeNullable(kTestNodeId);