The simplest way to make product information known through DMI is by hard coding the information into the MIF database. Using this method requires no access code to be written, and DMI retrieves the product information from the DMI database.
Hard-coded information has a major limitation: the system cannot dynamically update the information yet maintain data integrity. If you set an attribute to read/write, anyone can update that value. Another restriction of hard-coded information is that you cannot add or delete rows in tables. The only way to update a read-only attribute is by deleting the old MIF file and installing a new MIF file with the updated values.