最近，仕事で使うことがあってたまたま気がついたのだが， PlantUML って JSON や YAML のデータを視覚化できるんだね。 やり方は簡単。たとえば { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 28, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100" }, "phoneNumbers": [ { "type": "home", "number": "212 555-1234" }, { "type": "office", "number": "646 555-4567" } ], "children": [], "spous
