There is no single and easy answer. There are some questions you need to answer before:
How do you identify the content you want to take over? Do you really want to take over all pages and the complete pages? Or only a subset of it?
How do you want to structure your site in AEM? Does the old content have a reasonable hierarchy? Do you want to keep it?
Do you have an estimation how much it takes to migrate all the old content manually without any automation?
How do you want to QA the results of the automatic migration?
If you really want to migrate all pages and the complete pages in the very same hierarchy, a fully automated approach might be reasonable. Partial migrations or restructurings usually make any automated migration quite hard and expensive.
There is no single and easy answer. There are some questions you need to answer before:
How do you identify the content you want to take over? Do you really want to take over all pages and the complete pages? Or only a subset of it?
How do you want to structure your site in AEM? Does the old content have a reasonable hierarchy? Do you want to keep it?
Do you have an estimation how much it takes to migrate all the old content manually without any automation?
How do you want to QA the results of the automatic migration?
If you really want to migrate all pages and the complete pages in the very same hierarchy, a fully automated approach might be reasonable. Partial migrations or restructurings usually make any automated migration quite hard and expensive.
to add to @jorg, you need to have a mapping between the data and your content modelling.
Once you do this exercise, then it would be easy to come up with the strategy of doing the migration. It may be directly creating an xml structure and uploading it or it may be writing a simple service to create the page or it may be even jus manual .
