The aim of this tool is to
- provide consistent grade calculations for an organisation's Moodle site where standardised grading methods exist
- take away the complexity of creating grade calculations from course creators.
The site admin will create grade calculation rules consisting of
- a table view of relevant grade item properties
- calculation templates using mustache markup.
The course creator
- organises the grade items into appropriate categories using the Moodle "Gradebook setup" in their course
- sets the visibility of the grade items; only gradable items are available to the Calculation setup tool
- chooses the preset rule for a grade category
- fills in any missing details
- applies the generated grade calculation.
And voila.
After installing the plugin, restore the course example.mbz. Follow through the instructions to learn how to use the Grade calculaiton tool.