diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNode.tsx b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNode.tsx
index b74042d211a55..8f1170499695b 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNode.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNode.tsx
@@ -29,8 +29,6 @@ interface Props {
 }
 
 export const AssetNode = React.memo(({definition, selected, computeKindTagsFilter}: Props) => {
-  const isSource = definition.isSource;
-
   const {liveData} = useAssetLiveData(definition.assetKey);
   return (
     <AssetInsetForHoverEffect>
@@ -45,7 +43,7 @@ export const AssetNode = React.memo(({definition, selected, computeKindTagsFilte
         />
       </Box>
       <AssetNodeContainer $selected={selected}>
-        <AssetNodeBox $selected={selected} $isSource={isSource}>
+        <AssetNodeBox $selected={selected} $isMaterializable={definition.isMaterializable}>
           <AssetNameRow definition={definition} />
           <Box style={{padding: '6px 8px'}} flex={{direction: 'column', gap: 4}} border="top">
             {definition.description ? (
@@ -55,7 +53,7 @@ export const AssetNode = React.memo(({definition, selected, computeKindTagsFilte
             ) : (
               <AssetDescription $color={Colors.textLight()}>No description</AssetDescription>
             )}
-            {definition.isPartitioned && !definition.isSource && (
+            {definition.isPartitioned && definition.isMaterializable && (
               <PartitionCountTags definition={definition} liveData={liveData} />
             )}
           </Box>
@@ -81,13 +79,13 @@ export const AssetNameRow = ({definition}: {definition: AssetNodeFragment}) => {
   const displayName = definition.assetKey.path[definition.assetKey.path.length - 1]!;
 
   return (
-    <AssetName $isSource={definition.isSource}>
+    <AssetName $isMaterializable={definition.isMaterializable}>
       <span style={{marginTop: 1}}>
-        <Icon name={definition.isSource ? 'source_asset' : 'asset'} />
+        <Icon name={definition.isMaterializable ? 'asset' : 'source_asset'} />
       </span>
       <div
         data-tooltip={displayName}
-        data-tooltip-style={definition.isSource ? NameTooltipStyleSource : NameTooltipStyle}
+        data-tooltip-style={definition.isMaterializable ? NameTooltipStyle : NameTooltipStyleSource}
         style={{overflow: 'hidden', textOverflow: 'ellipsis'}}
       >
         {withMiddleTruncation(displayName, {
@@ -191,7 +189,7 @@ export const AssetNodeMinimal = ({
   definition: AssetNodeFragment;
   height: number;
 }) => {
-  const {isSource, assetKey} = definition;
+  const {isMaterializable, assetKey} = definition;
   const {liveData} = useAssetLiveData(assetKey);
 
   const {border, background} = buildAssetNodeStatusContent({assetKey, definition, liveData});
@@ -214,7 +212,7 @@ export const AssetNodeMinimal = ({
         >
           <MinimalAssetNodeBox
             $selected={selected}
-            $isSource={isSource}
+            $isMaterializable={isMaterializable}
             $background={background}
             $border={border}
             $inProgress={!!inProgressRuns}
@@ -227,7 +225,7 @@ export const AssetNodeMinimal = ({
               />
             ) : null}
             {isStale ? <MinimalNodeStaleDot assetKey={assetKey} liveData={liveData} /> : null}
-            <MinimalName style={{fontSize: 24}} $isSource={isSource}>
+            <MinimalName style={{fontSize: 24}} $isMaterializable={isMaterializable}>
               {withMiddleTruncation(displayName, {maxLength: 18})}
             </MinimalName>
           </MinimalAssetNodeBox>
@@ -254,7 +252,7 @@ export const ASSET_NODE_FRAGMENT = gql`
     computeKind
     isPartitioned
     isObservable
-    isSource
+    isMaterializable
     assetKey {
       ...AssetNodeKey
     }
@@ -290,12 +288,12 @@ const AssetNodeShowOnHover = styled.span`
 `;
 
 export const AssetNodeBox = styled.div<{
-  $isSource: boolean;
+  $isMaterializable: boolean;
   $selected: boolean;
   $noScale?: boolean;
 }>`
   ${(p) =>
-    p.$isSource
+    !p.$isMaterializable
       ? `border: 2px dashed ${p.$selected ? Colors.accentGrayHover() : Colors.accentGray()}`
       : `border: 2px solid ${
           p.$selected ? Colors.lineageNodeBorderSelected() : Colors.lineageNodeBorder()
@@ -343,11 +341,12 @@ const NameTooltipStyleSource = JSON.stringify({
   border: `none`,
 });
 
-const AssetName = styled.div<{$isSource: boolean}>`
+const AssetName = styled.div<{$isMaterializable: boolean}>`
   ${NameCSS};
   display: flex;
   gap: 4px;
-  background: ${(p) => (p.$isSource ? Colors.backgroundLight() : Colors.lineageNodeBackground())};
+  background: ${(p) =>
+    p.$isMaterializable ? Colors.lineageNodeBackground() : Colors.backgroundLight()};
   border-top-left-radius: 8px;
   border-top-right-radius: 8px;
 `;
@@ -357,7 +356,7 @@ const MinimalAssetNodeContainer = styled(AssetNodeContainer)`
 `;
 
 const MinimalAssetNodeBox = styled.div<{
-  $isSource: boolean;
+  $isMaterializable: boolean;
   $selected: boolean;
   $background: string;
   $border: string;
@@ -367,7 +366,7 @@ const MinimalAssetNodeBox = styled.div<{
   background: ${(p) => p.$background};
   overflow: hidden;
   ${(p) =>
-    p.$isSource
+    !p.$isMaterializable
       ? `border: 4px dashed ${p.$selected ? Colors.accentGray() : p.$border}`
       : `border: 4px solid ${p.$selected ? Colors.lineageNodeBorderSelected() : p.$border}`};
   ${(p) =>
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeMenu.tsx b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeMenu.tsx
index 4d4445a6245d9..7cb644cbc6258 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeMenu.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeMenu.tsx
@@ -20,7 +20,7 @@ export type AssetNodeMenuNode = {
   id: string;
   assetKey: AssetKeyInput;
   definition: {
-    isSource: boolean;
+    isMaterializable: boolean;
     isObservable: boolean;
     isExecutable: boolean;
     hasMaterializePermission: boolean;
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeStatusContent.tsx b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeStatusContent.tsx
index 03360b9528056..e20898fc6d695 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeStatusContent.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/AssetNodeStatusContent.tsx
@@ -51,7 +51,7 @@ const LOADING_STATUS_CONTENT = {
 
 export type StatusContentArgs = {
   assetKey: AssetKeyInput;
-  definition: {opNames: string[]; isSource: boolean; isObservable: boolean};
+  definition: {opNames: string[]; isMaterializable: boolean; isObservable: boolean};
   liveData: LiveDataForNode | null | undefined;
   expanded?: boolean;
 };
@@ -400,7 +400,7 @@ export function _buildAssetNodeStatusContent({
     };
   }
 
-  if (!lastMaterialization && definition.isSource) {
+  if (!lastMaterialization && !definition.isMaterializable) {
     return {
       case: StatusCase.SOURCE_NO_STATE as const,
       background: Colors.backgroundLight(),
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/SidebarAssetInfo.tsx b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/SidebarAssetInfo.tsx
index 6aa677d75f06c..cdb6002e5e63f 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/SidebarAssetInfo.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/SidebarAssetInfo.tsx
@@ -189,7 +189,7 @@ export const SidebarAssetInfo = ({graphNode}: {graphNode: GraphNode}) => {
 
       {assetType && <TypeSidebarSection assetType={assetType} />}
 
-      {asset.partitionDefinition && !definition.isSource && (
+      {asset.partitionDefinition && definition.isMaterializable && (
         <SidebarSection title="Partitions">
           <Box padding={{vertical: 16, horizontal: 24}} flex={{direction: 'column', gap: 16}}>
             <p>{asset.partitionDefinition.description}</p>
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__fixtures__/AssetNode.fixtures.ts b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__fixtures__/AssetNode.fixtures.ts
index 52ebc0a9ccd38..4d64bc0705c47 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__fixtures__/AssetNode.fixtures.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__fixtures__/AssetNode.fixtures.ts
@@ -61,7 +61,7 @@ export const AssetNodeFragmentBasic: AssetNodeFragment = buildAssetNode({
   id: '["asset1"]',
   isObservable: false,
   isPartitioned: false,
-  isSource: false,
+  isMaterializable: true,
   jobNames: ['job1'],
   opNames: ['asset1'],
   opVersion: '1',
@@ -82,13 +82,13 @@ export const AssetNodeFragmentSource = buildAssetNode({
   description: 'This is a test source asset',
   id: '["source_asset"]',
   isObservable: true,
-  isSource: true,
+  isMaterializable: false,
   jobNames: [],
   opNames: [],
 });
 
 export const AssetNodeFragmentSourceOverdue = buildAssetNode({
-  isSource: true,
+  isMaterializable: false,
   isObservable: false,
   freshnessInfo: buildAssetFreshnessInfo({
     currentMinutesLate: 12,
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__stories__/SidebarAssetInfo.stories.tsx b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__stories__/SidebarAssetInfo.stories.tsx
index 2c2113b4652b6..2e088346ccf29 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__stories__/SidebarAssetInfo.stories.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/__stories__/SidebarAssetInfo.stories.tsx
@@ -53,7 +53,7 @@ const buildGraphNodeMock = (definitionOverrides: Partial<AssetNode>): GraphNode
     graphName: null,
     isPartitioned: false,
     isObservable: false,
-    isSource: false,
+    isMaterializable: true,
     ...definitionOverrides,
   }),
 });
@@ -329,7 +329,9 @@ export const AssetWithDifferentOpName = () => {
 export const ObservableSourceAsset = () => {
   return (
     <TestContainer>
-      <SidebarAssetInfo graphNode={buildGraphNodeMock({isObservable: true, isSource: true})} />
+      <SidebarAssetInfo
+        graphNode={buildGraphNodeMock({isObservable: true, isMaterializable: false})}
+      />
     </TestContainer>
   );
 };
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/layout.ts b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/layout.ts
index 5a79f3010d8be..7dc54f2c88b8e 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/layout.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/layout.ts
@@ -343,7 +343,7 @@ export const ASSET_NODE_NAME_MAX_LENGTH = 38;
 export const getAssetNodeDimensions = (def: {
   assetKey: {path: string[]};
   opNames: string[];
-  isSource: boolean;
+  isMaterializable: boolean;
   isObservable: boolean;
   isPartitioned: boolean;
   graphName: string | null;
@@ -355,7 +355,7 @@ export const getAssetNodeDimensions = (def: {
 
   let height = 106; // top tags area + name + description
 
-  if (def.isSource && def.isObservable) {
+  if (!def.isMaterializable && def.isObservable) {
     height += 30; // status row
   } else {
     height += 28; // status row
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/AssetNode.types.ts b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/AssetNode.types.ts
index 653f5f70aee4d..d068cf77d286d 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/AssetNode.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/AssetNode.types.ts
@@ -15,7 +15,7 @@ export type AssetNodeFragment = {
   computeKind: string | null;
   isPartitioned: boolean;
   isObservable: boolean;
-  isSource: boolean;
+  isMaterializable: boolean;
   assetKey: {__typename: 'AssetKey'; path: Array<string>};
   tags: Array<{__typename: 'DefinitionTag'; key: string; value: string}>;
 };
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/useAssetGraphData.types.ts b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/useAssetGraphData.types.ts
index eea8c24acc933..39ce22fc1d9f7 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/useAssetGraphData.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/types/useAssetGraphData.types.ts
@@ -24,7 +24,7 @@ export type AssetGraphQuery = {
     computeKind: string | null;
     isPartitioned: boolean;
     isObservable: boolean;
-    isSource: boolean;
+    isMaterializable: boolean;
     tags: Array<{__typename: 'DefinitionTag'; key: string; value: string}>;
     owners: Array<
       {__typename: 'TeamAssetOwner'; team: string} | {__typename: 'UserAssetOwner'; email: string}
@@ -56,7 +56,7 @@ export type AssetNodeForGraphQueryFragment = {
   computeKind: string | null;
   isPartitioned: boolean;
   isObservable: boolean;
-  isSource: boolean;
+  isMaterializable: boolean;
   tags: Array<{__typename: 'DefinitionTag'; key: string; value: string}>;
   owners: Array<
     {__typename: 'TeamAssetOwner'; team: string} | {__typename: 'UserAssetOwner'; email: string}
diff --git a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/util.ts b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/util.ts
index 973c758989613..d333853639f4e 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/asset-graph/util.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/asset-graph/util.ts
@@ -6,7 +6,7 @@ import {AssetKeyInput} from '../graphql/types';
 export function groupAssetsByStatus<
   T extends {
     key: AssetKeyInput;
-    definition?: {opNames: string[]; isSource: boolean; isObservable: boolean} | null;
+    definition?: {opNames: string[]; isMaterializable: boolean; isObservable: boolean} | null;
   },
 >(assets: T[], liveDataByNode: Record<string, LiveDataForNode>) {
   type StatusesType = {
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetEvents.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetEvents.tsx
index 515395d4bc575..c9ea9466c0b7c 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetEvents.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetEvents.tsx
@@ -75,10 +75,10 @@ export const AssetEvents = ({
     (json) => ({types: json?.types || ALL_EVENT_TYPES}),
   );
 
-  // Source assets never have materializations, so we don't want to show the type filter
-  const hideFilters = assetNode?.isSource;
-  // Source assets never have a partitions tab, so we shouldn't allow links to it
-  const hidePartitionLinks = assetNode?.isSource;
+  // No need to show the type filter for assets without materializations
+  const hideFilters = !assetNode?.isMaterializable;
+  // Non-materializable assets never have a partitions tab, so we shouldn't allow links to it
+  const hidePartitionLinks = !assetNode?.isMaterializable;
 
   const grouped = useGroupedEvents(
     xAxis,
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetNodeDefinition.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetNodeDefinition.tsx
index db373170fe35a..a89ae10dc99b6 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetNodeDefinition.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetNodeDefinition.tsx
@@ -296,9 +296,7 @@ const DescriptionAnnotations = ({
         </Mono>
       ))}
     <UnderlyingOpsOrGraph assetNode={assetNode} repoAddress={repoAddress} />
-    {assetNode.isSource ? (
-      <Caption style={{lineHeight: '16px'}}>Source Asset</Caption>
-    ) : !assetNode.isExecutable ? (
+    {!assetNode.isMaterializable ? (
       <Caption style={{lineHeight: '16px'}}>External Asset</Caption>
     ) : undefined}
   </Box>
@@ -313,7 +311,7 @@ export const ASSET_NODE_DEFINITION_FRAGMENT = gql`
     opNames
     opVersion
     jobNames
-    isSource
+    isMaterializable
     isExecutable
     tags {
       key
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTableFragment.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTableFragment.tsx
index 25159c91d6053..d40a626b00151 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTableFragment.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTableFragment.tsx
@@ -6,7 +6,7 @@ export const ASSET_TABLE_DEFINITION_FRAGMENT = gql`
     changedReasons
     groupName
     opNames
-    isSource
+    isMaterializable
     isObservable
     isExecutable
     computeKind
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx
index c7e2ec99d3d44..f7ee57be759a8 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetTabs.tsx
@@ -65,7 +65,7 @@ export const buildAssetTabMap = (input: AssetTabConfigInput) => {
       id: 'partitions',
       title: 'Partitions',
       to: buildAssetViewParams({...params, view: 'partitions'}),
-      hidden: !definition?.partitionDefinition || definition?.isSource,
+      hidden: !definition?.partitionDefinition || !definition?.isMaterializable,
     } as AssetTabConfig,
     checks: {
       id: 'checks',
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx
index 14e5a16d6c1f6..56971a7256ea0 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/AssetView.tsx
@@ -177,7 +177,7 @@ export const AssetView = ({
   };
 
   const renderPartitionsTab = () => {
-    if (definition?.isSource) {
+    if (!definition?.isMaterializable) {
       return <Redirect to={assetDetailsPathForKey(assetKey, {view: 'events'})} />;
     }
 
@@ -567,11 +567,7 @@ const AssetViewPageHeaderTags = ({
           />
         </>
       ) : null}
-      {definition?.isSource ? (
-        <Tag>Source Asset</Tag>
-      ) : !definition?.isExecutable ? (
-        <Tag>External Asset</Tag>
-      ) : undefined}
+      {!definition?.isMaterializable ? <Tag>External Asset</Tag> : undefined}
     </>
   );
 };
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/CalculateUnsyncedDialog.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/CalculateUnsyncedDialog.tsx
index bce49375af09f..4d3af7d758f4f 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/CalculateUnsyncedDialog.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/CalculateUnsyncedDialog.tsx
@@ -55,7 +55,7 @@ export const CalculateUnsyncedDialog = React.memo(
     const unsynced = React.useMemo(
       () =>
         (data?.assetNodes || [])
-          .filter((node) => !node.isSource && (isAssetStale(node) || isAssetMissing(node)))
+          .filter((node) => node.isMaterializable && (isAssetStale(node) || isAssetMissing(node)))
           .map(asAssetKeyInput),
       [data],
     );
@@ -208,7 +208,7 @@ const ASSET_STALE_STATUS_QUERY = gql`
       assetKey {
         path
       }
-      isSource
+      isMaterializable
       staleStatus
       partitionStats {
         numMaterialized
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetChoosePartitionsDialog.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetChoosePartitionsDialog.tsx
index 6330d8f7455b3..1a0c043276cfb 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetChoosePartitionsDialog.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetChoosePartitionsDialog.tsx
@@ -706,7 +706,7 @@ export const LAUNCH_ASSET_WARNINGS_QUERY = gql`
   query LaunchAssetWarningsQuery($upstreamAssetKeys: [AssetKeyInput!]!) {
     assetNodes(assetKeys: $upstreamAssetKeys) {
       id
-      isSource
+      isMaterializable
       assetKey {
         path
       }
@@ -755,7 +755,7 @@ const Warnings = ({
       (upstreamAssets || [])
         .filter(
           (a) =>
-            !a.isSource &&
+            a.isMaterializable &&
             a.partitionDefinition &&
             displayedPartitionDefinition &&
             partitionDefinitionsEqual(a.partitionDefinition, displayedPartitionDefinition),
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetExecutionButton.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetExecutionButton.tsx
index b4bc99ac8052d..61b1b7f351dd3 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetExecutionButton.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetExecutionButton.tsx
@@ -655,7 +655,7 @@ async function upstreamAssetsWithNoMaterializations(
   });
 
   return result.data.assetNodes
-    .filter((a) => !a.isSource && a.assetMaterializations.length === 0)
+    .filter((a) => a.isMaterializable && a.assetMaterializations.length === 0)
     .map((a) => a.assetKey);
 }
 
@@ -789,7 +789,7 @@ const LAUNCH_ASSET_EXECUTION_ASSET_NODE_FRAGMENT = gql`
     }
     isObservable
     isExecutable
-    isSource
+    isMaterializable
     assetKey {
       path
     }
@@ -936,7 +936,7 @@ export const LAUNCH_ASSET_CHECK_UPSTREAM_QUERY = gql`
       assetKey {
         path
       }
-      isSource
+      isMaterializable
       opNames
       graphName
       assetMaterializations(limit: 1) {
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetObservationButton.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetObservationButton.tsx
index 3c5a638771000..3ec9b3ab6a633 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetObservationButton.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/LaunchAssetObservationButton.tsx
@@ -144,17 +144,10 @@ async function stateForObservingAssets(
   _forceLaunchpad: boolean,
   preferredJobName?: string,
 ): Promise<ObserveAssetsState> {
-  if (assets.some((x) => !x.isSource)) {
-    return {
-      type: 'error',
-      error: 'One or more non-source assets are selected and cannot be observed.',
-    };
-  }
-
   if (assets.some((x) => !x.isObservable)) {
     return {
       type: 'error',
-      error: 'One or more of the selected source assets is not an observable asset.',
+      error: 'One or more of the selected assets is not an observable asset.',
     };
   }
   const repoAddress = buildRepoAddress(
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/AssetViewDefinition.fixtures.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/AssetViewDefinition.fixtures.ts
index e1e76ac2e58d9..7e2448a7584e1 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/AssetViewDefinition.fixtures.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/AssetViewDefinition.fixtures.ts
@@ -84,7 +84,7 @@ export const AssetViewDefinitionSourceAsset = buildQueryMock<
         isPartitioned: false,
         isObservable: true,
         isExecutable: true,
-        isSource: true,
+        isMaterializable: false,
         metadataEntries: [],
         type: null,
         requiredResources: [buildResourceRequirement({resourceKey: 'foo'})],
@@ -137,7 +137,7 @@ export const AssetViewDefinitionSDA = buildQueryMock<
         isPartitioned: false,
         isObservable: false,
         isExecutable: true,
-        isSource: false,
+        isMaterializable: true,
         metadataEntries: [],
         type: null,
         requiredResources: [buildResourceRequirement({resourceKey: 'foo'})],
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetExecutionButton.fixtures.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetExecutionButton.fixtures.ts
index e34bdf4d278a1..52516f437bc3d 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetExecutionButton.fixtures.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetExecutionButton.fixtures.ts
@@ -102,7 +102,7 @@ export const UNPARTITIONED_ASSET = buildAssetNode({
   isPartitioned: false,
   isObservable: false,
   isExecutable: true,
-  isSource: false,
+  isMaterializable: true,
   assetKey: buildAssetKey({path: ['unpartitioned_asset']}),
   requiredResources: [],
   configField: BASE_CONFIG_TYPE_FIELD,
@@ -131,7 +131,7 @@ export const CHECKED_ASSET = buildAssetNode({
 export const UNPARTITIONED_SOURCE_ASSET = buildAssetNode({
   ...UNPARTITIONED_ASSET,
   id: 'test.py.repo.["unpartitioned_source_asset"]',
-  isSource: true,
+  isMaterializable: false,
   isObservable: true,
   assetKey: buildAssetKey({path: ['unpartitioned_source_asset']}),
 });
@@ -197,7 +197,7 @@ export const ASSET_DAILY = buildAssetNode({
   isPartitioned: true,
   isObservable: false,
   isExecutable: true,
-  isSource: false,
+  isMaterializable: true,
   assetKey: buildAssetKey({path: ['asset_daily']}),
   requiredResources: [],
   configField: BASE_CONFIG_TYPE_FIELD,
@@ -231,7 +231,7 @@ export const ASSET_WEEKLY = buildAssetNode({
   isPartitioned: true,
   isObservable: false,
   isExecutable: true,
-  isSource: false,
+  isMaterializable: true,
   assetKey: buildAssetKey({path: ['asset_weekly']}),
   requiredResources: [],
   configField: BASE_CONFIG_TYPE_FIELD,
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetLoaderQuery.fixtures.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetLoaderQuery.fixtures.tsx
index e89623556bdbb..00b6aecf8a6fa 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetLoaderQuery.fixtures.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/__fixtures__/LaunchAssetLoaderQuery.fixtures.tsx
@@ -35,7 +35,7 @@ export const assetNodes: AssetNode[] = [
     }),
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['release_files'],
     }),
@@ -84,7 +84,7 @@ export const assetNodes: AssetNode[] = [
     }),
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['release_files_metadata'],
     }),
@@ -133,7 +133,7 @@ export const assetNodes: AssetNode[] = [
     }),
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['release_zips'],
     }),
@@ -182,7 +182,7 @@ export const assetNodes: AssetNode[] = [
     }),
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['releases_metadata'],
     }),
@@ -218,7 +218,7 @@ export const assetNodes: AssetNode[] = [
     partitionDefinition: null,
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['releases_summary'],
     }),
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/__tests__/useAssetTabs.test.tsx b/js_modules/dagster-ui/packages/ui-core/src/assets/__tests__/useAssetTabs.test.tsx
index d07ed6d2d19f2..86c2fb9a47bdc 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/__tests__/useAssetTabs.test.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/__tests__/useAssetTabs.test.tsx
@@ -59,7 +59,7 @@ describe('buildAssetTabs', () => {
     isPartitioned: true,
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['eager_downstream_3_partitioned'],
     }),
@@ -150,7 +150,7 @@ describe('buildAssetTabs', () => {
     isPartitioned: false,
     isObservable: false,
     isExecutable: true,
-    isSource: false,
+    isMaterializable: true,
     assetKey: buildAssetKey({
       path: ['lazy_downstream_1'],
     }),
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetNodeDefinition.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetNodeDefinition.types.ts
index c5dc6994e3c10..ff88269a3661d 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetNodeDefinition.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetNodeDefinition.types.ts
@@ -11,7 +11,7 @@ export type AssetNodeDefinitionFragment = {
   opNames: Array<string>;
   opVersion: string | null;
   jobNames: Array<string>;
-  isSource: boolean;
+  isMaterializable: boolean;
   isExecutable: boolean;
   hasMaterializePermission: boolean;
   changedReasons: Array<Types.ChangeReason>;
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetTableFragment.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetTableFragment.types.ts
index 79a2832e57c10..a761450e07853 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetTableFragment.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetTableFragment.types.ts
@@ -8,7 +8,7 @@ export type AssetTableDefinitionFragment = {
   changedReasons: Array<Types.ChangeReason>;
   groupName: string;
   opNames: Array<string>;
-  isSource: boolean;
+  isMaterializable: boolean;
   isObservable: boolean;
   isExecutable: boolean;
   computeKind: string | null;
@@ -37,7 +37,7 @@ export type AssetTableFragment = {
     changedReasons: Array<Types.ChangeReason>;
     groupName: string;
     opNames: Array<string>;
-    isSource: boolean;
+    isMaterializable: boolean;
     isObservable: boolean;
     isExecutable: boolean;
     computeKind: string | null;
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetView.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetView.types.ts
index 02b6bfd800a74..d74dd6f1500a9 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetView.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetView.types.ts
@@ -27,7 +27,7 @@ export type AssetViewDefinitionQuery = {
           opNames: Array<string>;
           opVersion: string | null;
           jobNames: Array<string>;
-          isSource: boolean;
+          isMaterializable: boolean;
           isExecutable: boolean;
           hasMaterializePermission: boolean;
           changedReasons: Array<Types.ChangeReason>;
@@ -16298,7 +16298,7 @@ export type AssetViewDefinitionNodeFragment = {
   opNames: Array<string>;
   opVersion: string | null;
   jobNames: Array<string>;
-  isSource: boolean;
+  isMaterializable: boolean;
   isExecutable: boolean;
   hasMaterializePermission: boolean;
   changedReasons: Array<Types.ChangeReason>;
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetsCatalogTable.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetsCatalogTable.types.ts
index bfdf8aa6c88b3..859d8ad1a19c5 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetsCatalogTable.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/AssetsCatalogTable.types.ts
@@ -22,7 +22,7 @@ export type AssetCatalogTableQuery = {
             changedReasons: Array<Types.ChangeReason>;
             groupName: string;
             opNames: Array<string>;
-            isSource: boolean;
+            isMaterializable: boolean;
             isObservable: boolean;
             isExecutable: boolean;
             computeKind: string | null;
@@ -67,7 +67,7 @@ export type AssetCatalogGroupTableQuery = {
     changedReasons: Array<Types.ChangeReason>;
     groupName: string;
     opNames: Array<string>;
-    isSource: boolean;
+    isMaterializable: boolean;
     isObservable: boolean;
     isExecutable: boolean;
     computeKind: string | null;
@@ -94,7 +94,7 @@ export type AssetCatalogGroupTableNodeFragment = {
   changedReasons: Array<Types.ChangeReason>;
   groupName: string;
   opNames: Array<string>;
-  isSource: boolean;
+  isMaterializable: boolean;
   isObservable: boolean;
   isExecutable: boolean;
   computeKind: string | null;
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/CalculateUnsyncedDialog.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/CalculateUnsyncedDialog.types.ts
index 4529a490a1471..5546f1f8ce7b6 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/CalculateUnsyncedDialog.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/CalculateUnsyncedDialog.types.ts
@@ -11,7 +11,7 @@ export type AssetStaleStatusQuery = {
   assetNodes: Array<{
     __typename: 'AssetNode';
     id: string;
-    isSource: boolean;
+    isMaterializable: boolean;
     staleStatus: Types.StaleStatus | null;
     assetKey: {__typename: 'AssetKey'; path: Array<string>};
     partitionStats: {
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetChoosePartitionsDialog.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetChoosePartitionsDialog.types.ts
index 82ef10da16113..0af017ae87b1c 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetChoosePartitionsDialog.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetChoosePartitionsDialog.types.ts
@@ -11,7 +11,7 @@ export type LaunchAssetWarningsQuery = {
   assetNodes: Array<{
     __typename: 'AssetNode';
     id: string;
-    isSource: boolean;
+    isMaterializable: boolean;
     assetKey: {__typename: 'AssetKey'; path: Array<string>};
     partitionDefinition: {
       __typename: 'PartitionDefinition';
diff --git a/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetExecutionButton.types.ts b/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetExecutionButton.types.ts
index 2688d7f23bdb5..5c19aa1207e4d 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetExecutionButton.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/assets/types/LaunchAssetExecutionButton.types.ts
@@ -30,7 +30,7 @@ export type LaunchAssetExecutionAssetNodeFragment = {
   hasMaterializePermission: boolean;
   isObservable: boolean;
   isExecutable: boolean;
-  isSource: boolean;
+  isMaterializable: boolean;
   partitionDefinition: {
     __typename: 'PartitionDefinition';
     description: string;
@@ -639,7 +639,7 @@ export type LaunchAssetLoaderQuery = {
     hasMaterializePermission: boolean;
     isObservable: boolean;
     isExecutable: boolean;
-    isSource: boolean;
+    isMaterializable: boolean;
     partitionDefinition: {
       __typename: 'PartitionDefinition';
       description: string;
@@ -1264,7 +1264,7 @@ export type LaunchAssetLoaderJobQuery = {
     hasMaterializePermission: boolean;
     isObservable: boolean;
     isExecutable: boolean;
-    isSource: boolean;
+    isMaterializable: boolean;
     partitionDefinition: {
       __typename: 'PartitionDefinition';
       description: string;
@@ -2462,7 +2462,7 @@ export type LaunchAssetCheckUpstreamQuery = {
   assetNodes: Array<{
     __typename: 'AssetNode';
     id: string;
-    isSource: boolean;
+    isMaterializable: boolean;
     opNames: Array<string>;
     graphName: string | null;
     assetKey: {__typename: 'AssetKey'; path: Array<string>};
diff --git a/js_modules/dagster-ui/packages/ui-core/src/graphql/schema.graphql b/js_modules/dagster-ui/packages/ui-core/src/graphql/schema.graphql
index e5853bd7d2e32..36ec593b58dcf 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/graphql/schema.graphql
+++ b/js_modules/dagster-ui/packages/ui-core/src/graphql/schema.graphql
@@ -665,8 +665,8 @@ type AssetNode {
   id: ID!
   isExecutable: Boolean!
   isObservable: Boolean!
+  isMaterializable: Boolean!
   isPartitioned: Boolean!
-  isSource: Boolean!
   jobNames: [String!]!
   jobs: [Pipeline!]!
   latestMaterializationByPartition(partitions: [String!]): [MaterializationEvent]!
diff --git a/js_modules/dagster-ui/packages/ui-core/src/graphql/types.ts b/js_modules/dagster-ui/packages/ui-core/src/graphql/types.ts
index 067ab764caa1c..e36578d998892 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/graphql/types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/graphql/types.ts
@@ -442,9 +442,9 @@ export type AssetNode = {
   hasMaterializePermission: Scalars['Boolean']['output'];
   id: Scalars['ID']['output'];
   isExecutable: Scalars['Boolean']['output'];
+  isMaterializable: Scalars['Boolean']['output'];
   isObservable: Scalars['Boolean']['output'];
   isPartitioned: Scalars['Boolean']['output'];
-  isSource: Scalars['Boolean']['output'];
   jobNames: Array<Scalars['String']['output']>;
   jobs: Array<Pipeline>;
   latestMaterializationByPartition: Array<Maybe<MaterializationEvent>>;
@@ -6478,11 +6478,14 @@ export const buildAssetNode = (
         : '006fc1b6-3c6e-432d-ac6a-c1c16c0c05b9',
     isExecutable:
       overrides && overrides.hasOwnProperty('isExecutable') ? overrides.isExecutable! : false,
+    isMaterializable:
+      overrides && overrides.hasOwnProperty('isMaterializable')
+        ? overrides.isMaterializable!
+        : true,
     isObservable:
       overrides && overrides.hasOwnProperty('isObservable') ? overrides.isObservable! : false,
     isPartitioned:
       overrides && overrides.hasOwnProperty('isPartitioned') ? overrides.isPartitioned! : true,
-    isSource: overrides && overrides.hasOwnProperty('isSource') ? overrides.isSource! : false,
     jobNames: overrides && overrides.hasOwnProperty('jobNames') ? overrides.jobNames! : [],
     jobs: overrides && overrides.hasOwnProperty('jobs') ? overrides.jobs! : [],
     latestMaterializationByPartition:
diff --git a/js_modules/dagster-ui/packages/ui-core/src/workspace/VirtualizedAssetRow.tsx b/js_modules/dagster-ui/packages/ui-core/src/workspace/VirtualizedAssetRow.tsx
index e0c1df108b34f..821e226f8156e 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/workspace/VirtualizedAssetRow.tsx
+++ b/js_modules/dagster-ui/packages/ui-core/src/workspace/VirtualizedAssetRow.tsx
@@ -170,7 +170,7 @@ export const VirtualizedAssetRow = (props: AssetRowProps) => {
           </RowCell>
         ) : null}
         <RowCell>
-          {definition?.partitionDefinition && !definition?.isSource ? (
+          {definition?.partitionDefinition && definition?.isMaterializable ? (
             <Box flex={{direction: 'column', alignItems: 'flex-start', gap: 4}}>
               <PartitionCountLabels partitionStats={liveData?.partitionStats} />
               <Caption>{partitionCountString(liveData?.partitionStats?.numPartitions)}</Caption>
diff --git a/js_modules/dagster-ui/packages/ui-core/src/workspace/types/VirtualizedRepoAssetTable.types.ts b/js_modules/dagster-ui/packages/ui-core/src/workspace/types/VirtualizedRepoAssetTable.types.ts
index 1f22cb1605776..a5cfbe3997037 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/workspace/types/VirtualizedRepoAssetTable.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/workspace/types/VirtualizedRepoAssetTable.types.ts
@@ -8,7 +8,7 @@ export type RepoAssetTableFragment = {
   groupName: string;
   changedReasons: Array<Types.ChangeReason>;
   opNames: Array<string>;
-  isSource: boolean;
+  isMaterializable: boolean;
   isObservable: boolean;
   isExecutable: boolean;
   computeKind: string | null;
diff --git a/js_modules/dagster-ui/packages/ui-core/src/workspace/types/WorkspaceAssetsRoot.types.ts b/js_modules/dagster-ui/packages/ui-core/src/workspace/types/WorkspaceAssetsRoot.types.ts
index 112ce6c29aa3c..363b99fe8efad 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/workspace/types/WorkspaceAssetsRoot.types.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/workspace/types/WorkspaceAssetsRoot.types.ts
@@ -29,7 +29,7 @@ export type WorkspaceAssetsQuery = {
           groupName: string;
           changedReasons: Array<Types.ChangeReason>;
           opNames: Array<string>;
-          isSource: boolean;
+          isMaterializable: boolean;
           isObservable: boolean;
           isExecutable: boolean;
           computeKind: string | null;
diff --git a/python_modules/dagster-graphql/dagster_graphql/schema/asset_graph.py b/python_modules/dagster-graphql/dagster_graphql/schema/asset_graph.py
index b2e568a6b184e..6da8df4ad58d8 100644
--- a/python_modules/dagster-graphql/dagster_graphql/schema/asset_graph.py
+++ b/python_modules/dagster-graphql/dagster_graphql/schema/asset_graph.py
@@ -284,8 +284,8 @@ class GrapheneAssetNode(graphene.ObjectType):
     id = graphene.NonNull(graphene.ID)
     isExecutable = graphene.NonNull(graphene.Boolean)
     isObservable = graphene.NonNull(graphene.Boolean)
+    isMaterializable = graphene.NonNull(graphene.Boolean)
     isPartitioned = graphene.NonNull(graphene.Boolean)
-    isSource = graphene.NonNull(graphene.Boolean)
     jobNames = non_null_list(graphene.String)
     jobs = non_null_list(GraphenePipeline)
     latestMaterializationByPartition = graphene.Field(
@@ -546,8 +546,9 @@ def get_required_resource_keys_rec(
     def is_graph_backed_asset(self) -> bool:
         return self.graphName is not None
 
-    def is_source_asset(self) -> bool:
-        return self._external_asset_node.is_source
+    @property
+    def is_executable(self) -> bool:
+        return self._external_asset_node.is_executable
 
     def resolve_hasMaterializePermission(
         self,
@@ -685,7 +686,7 @@ def resolve_assetObservations(
         ]
 
     def resolve_configField(self, _graphene_info: ResolveInfo) -> Optional[GrapheneConfigTypeField]:
-        if self.is_source_asset():
+        if self.is_executable:
             return None
         external_pipeline = self.get_external_job()
         node_def_snap = self.get_node_definition_snap()
@@ -1028,12 +1029,12 @@ def resolve_jobs(self, _graphene_info: ResolveInfo) -> Sequence[GraphenePipeline
             if self._external_repository.has_external_job(job_name)
         ]
 
-    def resolve_isSource(self, _graphene_info: ResolveInfo) -> bool:
-        return self.is_source_asset()
-
     def resolve_isPartitioned(self, _graphene_info: ResolveInfo) -> bool:
         return self._external_asset_node.partitions_def_data is not None
 
+    def resolve_isMaterializable(self, _graphene_info: ResolveInfo) -> bool:
+        return self._external_asset_node.is_materializable
+
     def resolve_isObservable(self, _graphene_info: ResolveInfo) -> bool:
         return self._external_asset_node.is_observable
 
@@ -1213,7 +1214,7 @@ def resolve_tags(self, _graphene_info: ResolveInfo) -> Sequence[GrapheneDefiniti
     def resolve_op(
         self, _graphene_info: ResolveInfo
     ) -> Optional[Union[GrapheneSolidDefinition, GrapheneCompositeSolidDefinition]]:
-        if self.is_source_asset():
+        if not self.is_executable:
             return None
         external_pipeline = self.get_external_job()
         node_def_snap = self.get_node_definition_snap()
@@ -1292,7 +1293,7 @@ def resolve_repository(self, graphene_info: ResolveInfo) -> "GrapheneRepository"
     def resolve_required_resources(
         self, _graphene_info: ResolveInfo
     ) -> Sequence[GrapheneResourceRequirement]:
-        if self.is_source_asset():
+        if not self.is_executable:
             return []
         node_def_snap = self.get_node_definition_snap()
         all_unique_keys = self.get_required_resource_keys(node_def_snap)
@@ -1305,7 +1306,7 @@ def resolve_type(
             "GrapheneListDagsterType", "GrapheneNullableDagsterType", "GrapheneRegularDagsterType"
         ]
     ]:
-        if self.is_source_asset():
+        if not self._external_asset_node.is_materializable:
             return None
         external_pipeline = self.get_external_job()
         output_name = self.external_asset_node.output_name