Import example

The import folder is installed in the install_dir\examples\ dsgnstud\ttmaker folder. It contains files that can be used to create a Type Tree Maker document file from a file that contains metadata. Metadata is data about data; it defines the syntax, structure, and semantic rules of data. A type tree is a graphical representation of metadata. The document file that is used by the Type Tree Maker is metadata in a textual form.

The type tree that defines the document file is a schema. It defines data about metadata. The type tree that defines the input metadata is a schema too; it defines the metadata used to generate the document file.

A map whose purpose is to update rows in a database table with data from another data file might then use the resulting type tree.

Briefly, this procedure consists of the following:

• Define the map that generates a Type Tree Maker document file from the input metadata.
• The Type Tree Maker generates a type tree from the document file. The type tree defines several tables, their data fields and rows.
• This type tree could then be used by another map (which is not supplied as part of this example). The map could read or update rows in database tables with the contents of some other input.