The PrestaShop developers have done their best for clearly and Inference separate the various parts of the software. Here is how the files are organized: · /admin: C ontains all the PrestaShop files pertaining to the back office. When you accessing this folder with any browser, you will be asked to provide proper identification, for security reasons. you should make sure to protect that folder with a .htaccess or .htpasswd file (You can customized the name on installation) · /app : NEW IN 1.7. · /cache : There are temporary and generating folders used to reduce the load of the server. · /classes : The Prestashop object contains all the files related to the model (some are used for the front office, for other back offices). Each file represents the PHP class and its contains methods / properties · ...