GRML uses

File and web browsers require a reader. It downloads and reads files and web pages. Additional uses of GRML include adapters, viewers, editors, and writers.

Bar Graph MDI is a GRML reader. It is an example of a file and web browser using GRML in only one way. It does not adapt, display, edit, nor write GRML. Instead, it creates graphs from GRML files and web pages.

Tree MDI reads and displays GRML using a tree control. The tree control is the viewer of the Tree MDI file and web browser. Tree MDI uses a reader, viewer, and writer. The writer reads GRML and writes (saves) GRML.

A writer allows content in the viewer to be saved to a disk, hard drive, or web server. It does not matter whether the content in the viewer has been changed. Changing, or editing, content is another use.

When Tree MDI displays content, it supports editing. Therefore, Tree MDI is an editor. An editor requires a viewer and therefore, a reader. However, without a writer, there is no way to save edited content. Since Tree MDI has a writer, it allows GRML content to be changed and saved. To save in another format is another use.

An adapter saves GRML in other formats. Or, it saves other formats using GRML. It requires a reader and a writer. Tree MDI has a reader and writes (saves) using GRML, CSV or text delimited formats. For example, it is possible to use Tree MDI to read GRML, edit the content, and write (save) using the CSV or text delimited format.

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