BISNO: products in stock tracking for users

This is an WEB BASED application that will keep track of products brought in and taken out by users. Additions and subtractions are tracked thru transactions. Actual stock is the sum of add and subtract transactions. The maximum number of products per user is 120; this will probably never happen. The quantity will also never exceed 120. Example: 12 X 10 products = 120 quantity! Only admin users can make transactions – this will ONLY happen on site; all others can only view their own stock (from home). User & product management will be done on the database. Deliverables: - mysql database export - .php files containing the application; code should be documented where needed. - 1 page documentation.