Explain the concepts and capabilities of Portal Structure Markup Language (PSML).- PSML was created to allow abstraction and content structure within Jetspeed.
- It has two markups: 1. Registry markup 2. Site markup
1. Registry markup: - Describes the availability of resources to the Jetspeed engine. - It supports multiple portlet registries.
2. Site markup: - The availability of portlets are described by this markup, which is displayed for a given user.
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