The ordering and presentation of a portfolio website according to things like:

• medium
• type of work (e.g. identity design vs wayfinding design vs book design...)
• professional or personal
• publish date
• collaborative or individual
• role in project
• what skill the work demonstrates, (e.g. visual composition, typography, ability to program...)

Also the ways in which these elements are emphasized or obscured formally, along with other "formal" qualities which are in fact aspects of the way the world is constructed:

• isolated visual surfaces or comprehensive projects
• image galleries or case studies or indexes or all of these or something else
• ability to filter/search by the above

and so forth