diff --git a/data/radar/2017-03-01/demo-1.md b/data/radar/2017-03-01/demo-1.md
new file mode 100644
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+++ b/data/radar/2017-03-01/demo-1.md
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+---
+title: "Demo 1"
+ring: assess
+quadrant: methods-and-patterns
+tags: [coding]
+---
+
+This is a demo entry. It is used to show how a radar item is written in Markdown format. The meta header is used to define the attributes of the item. The content of the file is used as the description of the item.
diff --git a/data/radar/2017-03-01/demo-2.md b/data/radar/2017-03-01/demo-2.md
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+---
+title: "Demo 2"
+ring: trial
+quadrant: platforms-and-aoe-services
+tags: [coding]
+---
+
+This is a demo entry. It is used to show how a radar item is written in Markdown format. The meta header is used to define the attributes of the item. The content of the file is used as the description of the item.
diff --git a/data/radar/2017-03-01/demo-3.md b/data/radar/2017-03-01/demo-3.md
new file mode 100644
index 0000000..4f22290
--- /dev/null
+++ b/data/radar/2017-03-01/demo-3.md
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+---
+title: "Demo 3"
+ring: hold
+quadrant: tools
+tags: [coding]
+---
+
+This is a demo entry. It is used to show how a radar item is written in Markdown format. The meta header is used to define the attributes of the item. The content of the file is used as the description of the item.
diff --git a/data/radar/2024-03-01/demo-2.md b/data/radar/2024-03-01/demo-2.md
new file mode 100644
index 0000000..7fcff00
--- /dev/null
+++ b/data/radar/2024-03-01/demo-2.md
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+---
+title: "Demo 2"
+ring: adopt
+quadrant: platforms-and-aoe-services
+tags: [coding]
+---
+
+This is a revision of the 2nd demo item. It moved from trail to adopt.
diff --git a/data/radar/2024-03-01/demo-4.md b/data/radar/2024-03-01/demo-4.md
new file mode 100644
index 0000000..0850078
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+++ b/data/radar/2024-03-01/demo-4.md
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+---
+title: "Demo 4"
+ring: trial
+quadrant: languages-and-frameworks
+tags: [new]
+---
+
+This is a new demo entry. Items can [link](/methods-and-patterns/demo-1/) to other items.