Schematron is an XML-based language for validating XML instance documents.
Schematron is used to make assertions about data in an XML document.
Schematron is used to express operational and business rules.

SVG means Scalable Vector Graphics.

• SVG 使用 XML 格式定义图形
• SVG 图像在放大或改变尺寸的情况下其图形质量不会有所损失
• SVG 是万维网联盟的标准

Hello World

• Use SVG in html

and you can see: