diff --git a/frontend/src/framework/ModuleContext.ts b/frontend/src/framework/ModuleContext.ts
index 063431ee1..591b1a196 100644
--- a/frontend/src/framework/ModuleContext.ts
+++ b/frontend/src/framework/ModuleContext.ts
@@ -7,6 +7,7 @@ import {
     GenreType,
     SubscriberDefinitions,
     Type,
+    TypeToTSTypeMapping,
 } from "./DataChannelTypes";
 import { InitialSettings } from "./InitialSettings";
 import { ModuleInstance } from "./ModuleInstance";
@@ -102,20 +103,33 @@ export class ModuleContext<
         channelIdent: TIdent;
         dependencies: any[];
         contents: ContentDefinition[];
-        dataGenerator: (contentIdent: string) => TChannelDefs[TIdent]["metaData"] extends undefined
-            ? Data<GenreType[TChannelDefs[TIdent]["genre"]], TChannelDefs[TIdent]["dataType"]>[]
-            : {
+        dataGenerator: (contentIdent: string) => TChannelDefs[TIdent] extends { metaData: Record<string, Type> }
+            ? {
                   data: Data<GenreType[TChannelDefs[TIdent]["genre"]], TChannelDefs[TIdent]["dataType"]>[];
-                  metaData: TChannelDefs[TIdent]["metaData"];
-              };
+                  metaData: {
+                      [K in keyof TChannelDefs[TIdent]["metaData"]]: TypeToTSTypeMapping[TChannelDefs[TIdent]["metaData"][K]];
+                  };
+              }
+            : Data<GenreType[TChannelDefs[TIdent]["genre"]], TChannelDefs[TIdent]["dataType"]>[];
     }) {
+        const { channelIdent, ...rest } = options;
         const channel = this._moduleInstance.getPublishSubscribeBroker().getChannel(options.channelIdent);
         if (!channel) {
             throw new Error(`Channel '${options.channelIdent}' does not exist`);
         }
         return usePublish({
             channel,
-            ...options,
+            ...rest,
         });
     }
 }
+
+const l = {} as const;
+
+type n = typeof l;
+
+type m = n extends { metaData: Record<string, Type> }
+    ? {
+          [K in keyof n["metaData"]]: TypeToTSTypeMapping[n["metaData"][K]];
+      }
+    : never;
diff --git a/frontend/src/framework/internal/DataChannels/Channel.ts b/frontend/src/framework/internal/DataChannels/Channel.ts
index 0934ce26e..6e2f49c4d 100644
--- a/frontend/src/framework/internal/DataChannels/Channel.ts
+++ b/frontend/src/framework/internal/DataChannels/Channel.ts
@@ -3,14 +3,22 @@ import { PublishSubscribeBroker } from "./PublishSubscribeBroker";
 
 import { Data, Genre, GenreType, Type } from "../../DataChannelTypes";
 
-export interface ChannelDefinitions {
-    [ident: string]: {
-        name: string;
-        genre: Genre;
-        dataType: Type;
-        metaData?: Record<string, Type>;
-    };
-}
+export type ChannelDefinitions =
+    | {
+          [ident: string]: {
+              name: string;
+              genre: Genre;
+              dataType: Type;
+          };
+      }
+    | {
+          [ident: string]: {
+              name: string;
+              genre: Genre;
+              dataType: Type;
+              metaData: Record<string, Type>;
+          };
+      };
 
 export enum ChannelTopic {
     ContentsChange = "contents-change",
diff --git a/frontend/src/framework/internal/DataChannels/Content.ts b/frontend/src/framework/internal/DataChannels/Content.ts
index 51a91e2b5..5ce505e17 100644
--- a/frontend/src/framework/internal/DataChannels/Content.ts
+++ b/frontend/src/framework/internal/DataChannels/Content.ts
@@ -1,5 +1,3 @@
-import { Data } from "../../DataChannelTypes";
-
 export interface ContentDefinition {
     ident: string;
     name: string;
diff --git a/frontend/src/framework/internal/DataChannels/PublishSubscribeBroker.ts b/frontend/src/framework/internal/DataChannels/PublishSubscribeBroker.ts
index b4d8e20ea..b086ef06e 100644
--- a/frontend/src/framework/internal/DataChannels/PublishSubscribeBroker.ts
+++ b/frontend/src/framework/internal/DataChannels/PublishSubscribeBroker.ts
@@ -1,7 +1,7 @@
 import { Channel, ChannelDefinitions } from "./Channel";
 import { Subscriber, SubscriberDefinitions } from "./Subscriber";
 
-import { Genre } from "../../DataChannelTypes";
+import { Genre, Type } from "../../DataChannelTypes";
 
 export enum BroadcastServiceTopic {
     ChannelsChange = "channels-change",
@@ -26,7 +26,11 @@ export class PublishSubscribeBroker<
 
     getChannel<T extends Extract<keyof TChannelDefs, string>>(
         ident: T
-    ): Channel<TChannelDefs[T]["genre"], TChannelDefs[T]["dataType"], TChannelDefs[T]["metaData"]> | null {
+    ): Channel<
+        TChannelDefs[T]["genre"],
+        TChannelDefs[T]["dataType"],
+        TChannelDefs[T] extends { metaData: Record<string, Type> } ? TChannelDefs[T]["metaData"] : never
+    > | null {
         return this._channels.find((c) => c.getIdent() === ident) ?? null;
     }
 
diff --git a/frontend/src/framework/internal/DataChannels/hooks/usePublish.ts b/frontend/src/framework/internal/DataChannels/hooks/usePublish.ts
index 3882209b0..ac071f876 100644
--- a/frontend/src/framework/internal/DataChannels/hooks/usePublish.ts
+++ b/frontend/src/framework/internal/DataChannels/hooks/usePublish.ts
@@ -9,7 +9,7 @@ import { ContentDefinition } from "../Content";
 export function usePublish<
     TGenre extends Genre,
     TContentType extends Type,
-    TMetaData extends Record<string, Type> | undefined
+    TMetaData extends Record<string, Type>
 >(options: {
     channel: Channel<TGenre, TContentType, TMetaData>;
     dependencies: any[];
diff --git a/frontend/src/modules/DistributionPlot/loadModule.tsx b/frontend/src/modules/DistributionPlot/loadModule.tsx
index 23f5225c2..5d8e43b80 100644
--- a/frontend/src/modules/DistributionPlot/loadModule.tsx
+++ b/frontend/src/modules/DistributionPlot/loadModule.tsx
@@ -2,7 +2,7 @@ import { ModuleRegistry } from "@framework/ModuleRegistry";
 
 import { settings } from "./settings";
 import { PlotType, State } from "./state";
-import { subscriberDefs } from "./subscriberDefs";
+import { SubscriberDefs } from "./subscriberDefs";
 import { view } from "./view";
 
 const defaultState: State = {
@@ -11,7 +11,7 @@ const defaultState: State = {
     orientation: "h",
 };
 
-const module = ModuleRegistry.initModule<State, never, typeof subscriberDefs>("DistributionPlot", defaultState);
+const module = ModuleRegistry.initModule<State, never, SubscriberDefs>("DistributionPlot", defaultState);
 
 module.viewFC = view;
 module.settingsFC = settings;
diff --git a/frontend/src/modules/DistributionPlot/settings.tsx b/frontend/src/modules/DistributionPlot/settings.tsx
index 48257a705..f6322ba31 100644
--- a/frontend/src/modules/DistributionPlot/settings.tsx
+++ b/frontend/src/modules/DistributionPlot/settings.tsx
@@ -8,7 +8,7 @@ import { RadioGroup } from "@lib/components/RadioGroup";
 import { Slider } from "@lib/components/Slider";
 
 import { PlotType, State } from "./state";
-import { subscriberDefs } from "./subscriberDefs";
+import { SubscriberDefs } from "./subscriberDefs";
 
 const plotTypes = [
     {
@@ -34,7 +34,7 @@ export function settings({
     moduleContext,
     workbenchServices,
     initialSettings,
-}: ModuleFCProps<State, never, typeof subscriberDefs>) {
+}: ModuleFCProps<State, never, SubscriberDefs>) {
     const [prevChannelXName, setPrevChannelXName] = React.useState<string | null>(null);
     const [prevChannelYName, setPrevChannelYName] = React.useState<string | null>(null);
     const [prevChannelColorName, setPrevChannelColorName] = React.useState<string | null>(null);
diff --git a/frontend/src/modules/DistributionPlot/subscriberDefs.ts b/frontend/src/modules/DistributionPlot/subscriberDefs.ts
index 1b624f456..a5500860c 100644
--- a/frontend/src/modules/DistributionPlot/subscriberDefs.ts
+++ b/frontend/src/modules/DistributionPlot/subscriberDefs.ts
@@ -1,4 +1,4 @@
-import { Genre, SubscriberDefinitions } from "@framework/DataChannelTypes";
+import { Genre } from "@framework/DataChannelTypes";
 
 export const subscriberDefs = {
     ["channelX"]: {
@@ -26,3 +26,5 @@ export const subscriberDefs = {
         supportedGenres: [Genre.Realization],
     },
 } as const;
+
+export type SubscriberDefs = typeof subscriberDefs;
diff --git a/frontend/src/modules/DistributionPlot/view.tsx b/frontend/src/modules/DistributionPlot/view.tsx
index c3f134eee..9c2c34108 100644
--- a/frontend/src/modules/DistributionPlot/view.tsx
+++ b/frontend/src/modules/DistributionPlot/view.tsx
@@ -15,7 +15,7 @@ import { Histogram } from "./components/histogram";
 import { ScatterPlot } from "./components/scatterPlot";
 import { ScatterPlotWithColorMapping } from "./components/scatterPlotWithColorMapping";
 import { PlotType, State } from "./state";
-import { subscriberDefs } from "./subscriberDefs";
+import { SubscriberDefs } from "./subscriberDefs";
 
 function nFormatter(num: number, digits: number): string {
     const lookup = [
@@ -225,7 +225,7 @@ export const view = ({
     workbenchServices,
     initialSettings,
     workbenchSettings,
-}: ModuleFCProps<State, never, typeof subscriberDefs>) => {
+}: ModuleFCProps<State, never, SubscriberDefs>) => {
     const [plotType, setPlotType] = moduleContext.useStoreState("plotType");
     const numBins = moduleContext.useStoreValue("numBins");
     const orientation = moduleContext.useStoreValue("orientation");
diff --git a/frontend/src/modules/InplaceVolumetrics/channelDefs.ts b/frontend/src/modules/InplaceVolumetrics/channelDefs.ts
index 639e25141..d239debd8 100644
--- a/frontend/src/modules/InplaceVolumetrics/channelDefs.ts
+++ b/frontend/src/modules/InplaceVolumetrics/channelDefs.ts
@@ -1,4 +1,4 @@
-import { ChannelDefinitions, Genre, Type } from "@framework/DataChannelTypes";
+import { Genre, Type } from "@framework/DataChannelTypes";
 
 export enum BroadcastChannelNames {
     Response = "Response (per realization)",
@@ -12,3 +12,5 @@ export const channelDefs = {
         metaData: undefined,
     },
 } as const;
+
+export type ChannelDefs = typeof channelDefs;
diff --git a/frontend/src/modules/InplaceVolumetrics/loadModule.tsx b/frontend/src/modules/InplaceVolumetrics/loadModule.tsx
index 2c2ad2388..0e832723d 100644
--- a/frontend/src/modules/InplaceVolumetrics/loadModule.tsx
+++ b/frontend/src/modules/InplaceVolumetrics/loadModule.tsx
@@ -1,6 +1,6 @@
 import { ModuleRegistry } from "@framework/ModuleRegistry";
 
-import { channelDefs } from "./channelDefs";
+import { ChannelDefs } from "./channelDefs";
 import { settings } from "./settings";
 import { State } from "./state";
 import { view } from "./view";
@@ -14,7 +14,7 @@ const defaultState: State = {
     realizationsToInclude: null,
 };
 
-const module = ModuleRegistry.initModule<State, typeof channelDefs>("InplaceVolumetrics", defaultState);
+const module = ModuleRegistry.initModule<State, ChannelDefs>("InplaceVolumetrics", defaultState);
 
 module.viewFC = view;
 module.settingsFC = settings;
diff --git a/frontend/src/modules/InplaceVolumetrics/settings.tsx b/frontend/src/modules/InplaceVolumetrics/settings.tsx
index 94044cd5d..4b5fb4c1f 100644
--- a/frontend/src/modules/InplaceVolumetrics/settings.tsx
+++ b/frontend/src/modules/InplaceVolumetrics/settings.tsx
@@ -13,7 +13,7 @@ import { Label } from "@lib/components/Label";
 import { Select } from "@lib/components/Select";
 import { UseQueryResult } from "@tanstack/react-query";
 
-import { channelDefs } from "./channelDefs";
+import { ChannelDefs } from "./channelDefs";
 import { useTableDescriptionsQuery } from "./queryHooks";
 import { State } from "./state";
 
@@ -97,7 +97,7 @@ function getTableResponseOptions(
     return responsesToSelectOptions(responses);
 }
 
-export function settings({ moduleContext, workbenchSession }: ModuleFCProps<State, typeof channelDefs>) {
+export function settings({ moduleContext, workbenchSession }: ModuleFCProps<State, ChannelDefs>) {
     const ensembleSet = useEnsembleSet(workbenchSession);
     const [ensembleIdent, setEnsembleIdent] = moduleContext.useStoreState("ensembleIdent");
     const [tableName, setTableName] = moduleContext.useStoreState("tableName");
diff --git a/frontend/src/modules/InplaceVolumetrics/view.tsx b/frontend/src/modules/InplaceVolumetrics/view.tsx
index 29e985e29..ed176526b 100644
--- a/frontend/src/modules/InplaceVolumetrics/view.tsx
+++ b/frontend/src/modules/InplaceVolumetrics/view.tsx
@@ -11,12 +11,12 @@ import { useElementSize } from "@lib/hooks/useElementSize";
 
 import { Layout, PlotData, PlotHoverEvent } from "plotly.js";
 
-import { BroadcastChannelNames, channelDefs } from "./channelDefs";
+import { BroadcastChannelNames, ChannelDefs } from "./channelDefs";
 import { useRealizationsResponseQuery } from "./queryHooks";
 import { VolumetricResponseAbbreviations } from "./settings";
 import { State } from "./state";
 
-export const view = (props: ModuleFCProps<State, typeof channelDefs>) => {
+export const view = (props: ModuleFCProps<State, ChannelDefs>) => {
     const wrapperDivRef = React.useRef<HTMLDivElement>(null);
     const wrapperDivSize = useElementSize(wrapperDivRef);
     const ensembleIdent = props.moduleContext.useStoreValue("ensembleIdent");
diff --git a/frontend/src/modules/InplaceVolumetricsNew/channelDefs.ts b/frontend/src/modules/InplaceVolumetricsNew/channelDefs.ts
index f777327df..c99dc7dfa 100644
--- a/frontend/src/modules/InplaceVolumetricsNew/channelDefs.ts
+++ b/frontend/src/modules/InplaceVolumetricsNew/channelDefs.ts
@@ -4,10 +4,13 @@ export enum Channels {
     ResponseValuePerRealization = "Response value (per realization)",
 }
 
-export const channels: ChannelDefinitions = {
+export const channelDefs = {
     [Channels.ResponseValuePerRealization]: {
         name: "Response value (per realization)",
         genre: Genre.Realization,
         dataType: Type.Number,
+        metaData: {},
     },
-};
+} as const;
+
+export type ChannelDefs = typeof channelDefs;
diff --git a/frontend/src/modules/InplaceVolumetricsNew/loadModule.tsx b/frontend/src/modules/InplaceVolumetricsNew/loadModule.tsx
index 8c98dd1f5..442afcc88 100644
--- a/frontend/src/modules/InplaceVolumetricsNew/loadModule.tsx
+++ b/frontend/src/modules/InplaceVolumetricsNew/loadModule.tsx
@@ -1,5 +1,6 @@
 import { ModuleRegistry } from "@framework/ModuleRegistry";
 
+import { ChannelDefs } from "./channelDefs";
 import { settings } from "./settings";
 import { State } from "./state";
 import { view } from "./view";
@@ -11,7 +12,7 @@ const defaultState: State = {
     selectedCategoricalMetadata: [],
 };
 
-const module = ModuleRegistry.initModule<State>("InplaceVolumetricsNew", defaultState);
+const module = ModuleRegistry.initModule<State, ChannelDefs>("InplaceVolumetricsNew", defaultState);
 
 module.viewFC = view;
 module.settingsFC = settings;
diff --git a/frontend/src/modules/InplaceVolumetricsNew/registerModule.ts b/frontend/src/modules/InplaceVolumetricsNew/registerModule.ts
index 1561441af..48ba2176a 100644
--- a/frontend/src/modules/InplaceVolumetricsNew/registerModule.ts
+++ b/frontend/src/modules/InplaceVolumetricsNew/registerModule.ts
@@ -1,11 +1,11 @@
 import { ModuleRegistry } from "@framework/ModuleRegistry";
 
-import { channels } from "./channelDefs";
+import { channelDefs } from "./channelDefs";
 import { State } from "./state";
 
 ModuleRegistry.registerModule<State>({
     moduleName: "InplaceVolumetricsNew",
     defaultTitle: "Inplace Volumetrics (new)",
     description: "A module for comparing and investigating responses.",
-    channels: channels,
+    channels: channelDefs,
 });
diff --git a/frontend/src/modules/InplaceVolumetricsNew/settings.tsx b/frontend/src/modules/InplaceVolumetricsNew/settings.tsx
index 581d20030..dcb577d11 100644
--- a/frontend/src/modules/InplaceVolumetricsNew/settings.tsx
+++ b/frontend/src/modules/InplaceVolumetricsNew/settings.tsx
@@ -13,6 +13,7 @@ import { Label } from "@lib/components/Label";
 import { LoadingStateWrapper } from "@lib/components/StateWrapper/stateWrapper";
 import { FilterAlt } from "@mui/icons-material";
 
+import { ChannelDefs } from "./channelDefs";
 import FilterSelect from "./components/filterSelect";
 import { useTableNameAndMetadataFilterOptions } from "./hooks/useTableNameAndMetadataFilterOptions";
 import { useTableNamesAndMetadata } from "./hooks/useTableNamesAndMetadata";
@@ -32,7 +33,7 @@ function findValidRealizations(ensembleIdents: EnsembleIdent[], ensembleSet: Ens
     return validRealizations;
 }
 
-export const settings = ({ workbenchSession, moduleContext }: ModuleFCProps<State>) => {
+export const settings = ({ workbenchSession, moduleContext }: ModuleFCProps<State, ChannelDefs>) => {
     const [selectedEnsembleIdents, setSelectedEnsembleIdents] = moduleContext.useStoreState("selectedEnsembleIdents");
     const [selectedResponseNames, setSelectedResponseNames] = moduleContext.useStoreState("selectedResponseNames");
     const [selectedTableNames, setSelectedTableNames] = moduleContext.useStoreState("selectedTableNames");
diff --git a/frontend/src/modules/InplaceVolumetricsNew/view.tsx b/frontend/src/modules/InplaceVolumetricsNew/view.tsx
index 00be27f70..8c8cf26a7 100644
--- a/frontend/src/modules/InplaceVolumetricsNew/view.tsx
+++ b/frontend/src/modules/InplaceVolumetricsNew/view.tsx
@@ -7,11 +7,11 @@ import { TableHeading } from "@lib/components/Table/table";
 import { useElementSize } from "@lib/hooks/useElementSize";
 import { ContentInfo } from "@modules/_shared/components/ContentMessage";
 
-import { Channels } from "./channelDefs";
+import { ChannelDefs, Channels } from "./channelDefs";
 import { useRealizationsResponses } from "./hooks/useRealizationResponses";
 import { State } from "./state";
 
-export const view = (props: ModuleFCProps<State>) => {
+export const view = (props: ModuleFCProps<State, ChannelDefs>) => {
     const responseNames = props.moduleContext.useStoreValue("selectedResponseNames");
     const tableNames = props.moduleContext.useStoreValue("selectedTableNames");
     const ensembleIdents = props.moduleContext.useStoreValue("selectedEnsembleIdents");
diff --git a/frontend/src/modules/Map/channelDefs.ts b/frontend/src/modules/Map/channelDefs.ts
index dad3cd9e1..7df073706 100644
--- a/frontend/src/modules/Map/channelDefs.ts
+++ b/frontend/src/modules/Map/channelDefs.ts
@@ -1,14 +1,15 @@
-import { ChannelDefinition, DataType, Genre } from "@framework/DataChannelTypes";
+import { Genre, Type } from "@framework/DataChannelTypes";
 
 export enum Channels {
     GridIJK = "Grid IJK",
 }
 
-export const channels: ChannelDefinition[] = [
-    {
-        ident: Channels.GridIJK,
+export const channelDefs = {
+    [Channels.GridIJK]: {
         name: "Grid IJK",
         genre: Genre.GridIJK,
-        dataType: DataType.Numeric,
+        dataType: Type.Number,
     },
-];
+} as const;
+
+export type ChannelDefs = typeof channelDefs;
diff --git a/frontend/src/modules/Map/registerModule.ts b/frontend/src/modules/Map/registerModule.ts
index 20e988823..1f7abaa98 100644
--- a/frontend/src/modules/Map/registerModule.ts
+++ b/frontend/src/modules/Map/registerModule.ts
@@ -2,7 +2,7 @@ import { ModuleRegistry } from "@framework/ModuleRegistry";
 import { SyncSettingKey } from "@framework/SyncSettings";
 
 import { MapState } from "./MapState";
-import { channels } from "./channelDefs";
+import { channelDefs } from "./channelDefs";
 import { preview } from "./preview";
 
 ModuleRegistry.registerModule<MapState>({
@@ -10,5 +10,5 @@ ModuleRegistry.registerModule<MapState>({
     defaultTitle: "Map",
     syncableSettingKeys: [SyncSettingKey.ENSEMBLE, SyncSettingKey.SURFACE, SyncSettingKey.DATE],
     preview,
-    channels: channels,
+    channels: channelDefs,
 });
diff --git a/frontend/src/modules/SimulationTimeSeries/channelDefs.ts b/frontend/src/modules/SimulationTimeSeries/channelDefs.ts
index 900705071..8a7ae2680 100644
--- a/frontend/src/modules/SimulationTimeSeries/channelDefs.ts
+++ b/frontend/src/modules/SimulationTimeSeries/channelDefs.ts
@@ -1,14 +1,16 @@
-import { ChannelDefinition, DataType, Genre } from "@framework/DataChannelTypes";
+import { ChannelDefinitions, Genre, Type } from "@framework/DataChannelTypes";
 
 export enum BroadcastChannelNames {
     Realization_Value = "Value (per realization)",
 }
 
-export const channelDefs: ChannelDefinition[] = [
-    {
-        ident: BroadcastChannelNames.Realization_Value,
+export const channelDefs = {
+    [BroadcastChannelNames.Realization_Value]: {
         name: "Value (per realization)",
         genre: Genre.Realization,
-        dataType: DataType.Numeric,
+        dataType: Type.Number,
+        metaData: undefined,
     },
-];
+} as const;
+
+export type ChannelDefs = typeof channelDefs;
diff --git a/frontend/src/modules/SimulationTimeSeries/loadModule.tsx b/frontend/src/modules/SimulationTimeSeries/loadModule.tsx
index 22bd982f0..6c79023af 100644
--- a/frontend/src/modules/SimulationTimeSeries/loadModule.tsx
+++ b/frontend/src/modules/SimulationTimeSeries/loadModule.tsx
@@ -1,6 +1,7 @@
 import { Frequency_api } from "@api";
 import { ModuleRegistry } from "@framework/ModuleRegistry";
 
+import { ChannelDefs } from "./channelDefs";
 import { settings } from "./settings";
 import { State } from "./state";
 import { view } from "./view";
@@ -14,7 +15,7 @@ const defaultState: State = {
     realizationsToInclude: null,
 };
 
-const module = ModuleRegistry.initModule<State>("SimulationTimeSeries", defaultState);
+const module = ModuleRegistry.initModule<State, ChannelDefs>("SimulationTimeSeries", defaultState);
 
 module.viewFC = view;
 module.settingsFC = settings;
diff --git a/frontend/src/modules/SimulationTimeSeries/settings.tsx b/frontend/src/modules/SimulationTimeSeries/settings.tsx
index f04fc8247..fef3419dc 100644
--- a/frontend/src/modules/SimulationTimeSeries/settings.tsx
+++ b/frontend/src/modules/SimulationTimeSeries/settings.tsx
@@ -17,11 +17,12 @@ import { Select, SelectOption } from "@lib/components/Select";
 
 import { sortBy, sortedUniq } from "lodash";
 
+import { ChannelDefs } from "./channelDefs";
 import { useVectorListQuery } from "./queryHooks";
 import { State } from "./state";
 
 //-----------------------------------------------------------------------------------------------------------
-export function settings({ moduleContext, workbenchSession, workbenchServices }: ModuleFCProps<State>) {
+export function settings({ moduleContext, workbenchSession, workbenchServices }: ModuleFCProps<State, ChannelDefs>) {
     const myInstanceIdStr = moduleContext.getInstanceIdString();
     console.debug(`${myInstanceIdStr} -- render SimulationTimeSeries settings`);
 
diff --git a/frontend/src/modules/SimulationTimeSeries/view.tsx b/frontend/src/modules/SimulationTimeSeries/view.tsx
index a70fb3f23..19afcad6b 100644
--- a/frontend/src/modules/SimulationTimeSeries/view.tsx
+++ b/frontend/src/modules/SimulationTimeSeries/view.tsx
@@ -8,7 +8,7 @@ import { useElementSize } from "@lib/hooks/useElementSize";
 
 import { Layout, PlotData, PlotDatum, PlotHoverEvent } from "plotly.js";
 
-import { BroadcastChannelNames } from "./channelDefs";
+import { BroadcastChannelNames, ChannelDefs } from "./channelDefs";
 import { useHistoricalVectorDataQuery, useStatisticalVectorDataQuery, useVectorDataQuery } from "./queryHooks";
 import { State } from "./state";
 
@@ -19,7 +19,7 @@ interface MyPlotData extends Partial<PlotData> {
     legendrank?: number;
 }
 
-export const view = ({ moduleContext, workbenchSession, workbenchServices }: ModuleFCProps<State>) => {
+export const view = ({ moduleContext, workbenchSession, workbenchServices }: ModuleFCProps<State, ChannelDefs>) => {
     // Leave this in until we get a feeling for React18/Plotly
     const renderCount = React.useRef(0);
     React.useEffect(function incrementRenderCount() {
diff --git a/frontend/src/modules/SimulationTimeSeriesMatrix/channelDefs.ts b/frontend/src/modules/SimulationTimeSeriesMatrix/channelDefs.ts
index c40c5d62f..cab4cb902 100644
--- a/frontend/src/modules/SimulationTimeSeriesMatrix/channelDefs.ts
+++ b/frontend/src/modules/SimulationTimeSeriesMatrix/channelDefs.ts
@@ -1,18 +1,19 @@
-import { ChannelDefinition, DataType, Genre } from "@framework/DataChannelTypes";
+import { Genre, Type } from "@framework/DataChannelTypes";
 
 export enum BroadcastChannelNames {
     TimeSeries = "TimeSeries (with value per realization)",
 }
 
-export const channelDefs: ChannelDefinition[] = [
-    {
-        ident: BroadcastChannelNames.TimeSeries,
+export const channelDefs = {
+    [BroadcastChannelNames.TimeSeries]: {
         name: "TimeSeries (with value per realization)",
         genre: Genre.Realization,
-        dataType: DataType.Numeric,
+        dataType: Type.Number,
         metaData: {
-            ensemble: DataType.String,
-            unit: DataType.String,
+            ensemble: Type.String,
+            unit: Type.String,
         },
     },
-];
+} as const;
+
+export type ChannelDefs = typeof channelDefs;
diff --git a/frontend/src/modules/SimulationTimeSeriesMatrix/loadModule.tsx b/frontend/src/modules/SimulationTimeSeriesMatrix/loadModule.tsx
index 925579edb..b5d46d5ee 100644
--- a/frontend/src/modules/SimulationTimeSeriesMatrix/loadModule.tsx
+++ b/frontend/src/modules/SimulationTimeSeriesMatrix/loadModule.tsx
@@ -1,6 +1,7 @@
 import { Frequency_api, StatisticFunction_api } from "@api";
 import { ModuleRegistry } from "@framework/ModuleRegistry";
 
+import { ChannelDefs } from "./channelDefs";
 import { settings } from "./settings";
 import { FanchartStatisticOption, GroupBy, State, VisualizationMode } from "./state";
 import { view } from "./view";
@@ -21,7 +22,7 @@ const defaultState: State = {
     realizationsToInclude: null,
 };
 
-const module = ModuleRegistry.initModule<State>("SimulationTimeSeriesMatrix", defaultState);
+const module = ModuleRegistry.initModule<State, ChannelDefs>("SimulationTimeSeriesMatrix", defaultState);
 
 module.viewFC = view;
 module.settingsFC = settings;
diff --git a/frontend/src/modules/SimulationTimeSeriesMatrix/settings.tsx b/frontend/src/modules/SimulationTimeSeriesMatrix/settings.tsx
index daacb8325..e0ecd5eb2 100644
--- a/frontend/src/modules/SimulationTimeSeriesMatrix/settings.tsx
+++ b/frontend/src/modules/SimulationTimeSeriesMatrix/settings.tsx
@@ -26,6 +26,7 @@ import { FilterAlt } from "@mui/icons-material";
 
 import { isEqual } from "lodash";
 
+import { ChannelDefs } from "./channelDefs";
 import { useVectorListQueries } from "./queryHooks";
 import {
     FanchartStatisticOption,
@@ -47,7 +48,7 @@ enum StatisticsType {
     FANCHART = "Fanchart",
 }
 
-export function settings({ moduleContext, workbenchSession }: ModuleFCProps<State>) {
+export function settings({ moduleContext, workbenchSession }: ModuleFCProps<State, ChannelDefs>) {
     const ensembleSet = useEnsembleSet(workbenchSession);
     const statusWriter = useSettingsStatusWriter(moduleContext);
 
diff --git a/frontend/src/modules/SimulationTimeSeriesMatrix/view.tsx b/frontend/src/modules/SimulationTimeSeriesMatrix/view.tsx
index 02d6dadfc..f2a5d94db 100644
--- a/frontend/src/modules/SimulationTimeSeriesMatrix/view.tsx
+++ b/frontend/src/modules/SimulationTimeSeriesMatrix/view.tsx
@@ -13,7 +13,7 @@ import { ContentError } from "@modules/_shared/components/ContentMessage";
 import { indexOf } from "lodash";
 import { Layout, PlotDatum, PlotMouseEvent } from "plotly.js";
 
-import { BroadcastChannelNames } from "./channelDefs";
+import { BroadcastChannelNames, ChannelDefs } from "./channelDefs";
 import { useHistoricalVectorDataQueries, useStatisticalVectorDataQueries, useVectorDataQueries } from "./queryHooks";
 import { GroupBy, State, VisualizationMode } from "./state";
 import { EnsemblesContinuousParameterColoring } from "./utils/ensemblesContinuousParameterColoring";
@@ -24,7 +24,7 @@ import {
     filterVectorSpecificationAndIndividualStatisticsDataArray,
 } from "./utils/vectorSpecificationsAndQueriesUtils";
 
-export const view = ({ moduleContext, workbenchSession, workbenchSettings }: ModuleFCProps<State>) => {
+export const view = ({ moduleContext, workbenchSession, workbenchSettings }: ModuleFCProps<State, ChannelDefs>) => {
     const wrapperDivRef = React.useRef<HTMLDivElement>(null);
     const wrapperDivSize = useElementSize(wrapperDivRef);
 
@@ -143,7 +143,10 @@ export const view = ({ moduleContext, workbenchSession, workbenchSettings }: Mod
             });
             return {
                 data,
-                metaData: metaData ?? undefined,
+                metaData: metaData ?? {
+                    unit: "",
+                    ensemble: "",
+                },
             };
         },
     });
diff --git a/frontend/src/modules/SimulationTimeSeriesSensitivity/channelDefs.ts b/frontend/src/modules/SimulationTimeSeriesSensitivity/channelDefs.ts
index 0ebd32214..ccec01f48 100644
--- a/frontend/src/modules/SimulationTimeSeriesSensitivity/channelDefs.ts
+++ b/frontend/src/modules/SimulationTimeSeriesSensitivity/channelDefs.ts
@@ -1,14 +1,13 @@
-import { ChannelDefinition, DataType, Genre } from "@framework/DataChannelTypes";
+import { Genre, Type } from "@framework/DataChannelTypes";
 
 export enum BroadcastChannelNames {
     Realization_Value = "Value (per realization)",
 }
 
-export const channelDefs: ChannelDefinition[] = [
-    {
-        ident: BroadcastChannelNames.Realization_Value,
+export const channelDefs = {
+    [BroadcastChannelNames.Realization_Value]: {
         name: "Value (per realization)",
         genre: Genre.Realization,
-        dataType: DataType.Numeric
+        dataType: Type.Number,
     },
-];
+} as const;
diff --git a/frontend/src/modules/TornadoChart/registerModule.ts b/frontend/src/modules/TornadoChart/registerModule.ts
index c34c58fc7..77a153c50 100644
--- a/frontend/src/modules/TornadoChart/registerModule.ts
+++ b/frontend/src/modules/TornadoChart/registerModule.ts
@@ -1,18 +1,17 @@
-import { Genre, SubscriberDefinition } from "@framework/DataChannelTypes";
+import { Genre } from "@framework/DataChannelTypes";
 import { ModuleRegistry } from "@framework/ModuleRegistry";
 import { SyncSettingKey } from "@framework/SyncSettings";
 
 import { preview } from "./preview";
 import { State } from "./state";
 
-const subscriberDefs: SubscriberDefinition[] = [
-    {
-        ident: "response",
+const subscriberDefs = {
+    ["response"]: {
         name: "Response",
         supportedGenres: [Genre.Realization],
         supportsMultiContents: false,
     },
-];
+} as const;
 
 ModuleRegistry.registerModule<State>({
     moduleName: "TornadoChart",