This feature enables a page designer to group components and reuse them on multiple website pages. The simplest example is a header or footer partial design
to be used on many different pages: changes to the partial design need only be made once and are immediately updated on all pages.
Sitecore did in fact have an alternative available: a page template could be created that already contained the header and footer renderings and this could easily be reused for the website pages themselves. Unfortunately, this trick only worked with a one-to-one link between the page and the template. As our projects often use a more hierarchical structure, Partial Designs is a very welcome extension that will save us a lot of manual effort.
More on Sitecore Experience Commerce
Over the next few weeks I will be publishing a number of articles on what's new in Sitecore Experience Commerce. Each featuring a specific new feature. So stay tuned for more...