The iOS handles naming of the file when a picture is taken. You could create a database with the information you desire and then have the image contained in a container link to this record. The capture process is a little slower because the image is being inserted into the container. You can take several pictures to your photo and later import them into your container field. Matter of users choice here, take a little extra time between each photo, or when you get back to your office, you can take time to import the photo into the correct record.