Need Ideas to put into the maintainability and portability section of my Software Requirements Specifications(SRS) document . Also write function requirements.

This is the proposal:

PROPOSITION Aside from the devices the radio station uses computer programs as premier, avra, enco, finalcut, audition, office programs, photoshop, motion, protools, after effects, etc. We propose to them a software that can organize the computer, electronics and programs with the following features: 1. EACH ELECTRONIC WILL BE ORGANIZED BY DEPARTMENT 2. A COMPLETE INFORMATION OF EACH DEVICE WILL BE INCLUDED IN A DATABASE LIKE FORMAT THIS INFORMATION WILL INVLUDE Year of purchase Serial Number Model Brand Price Operating System User Updates Backups List of programs and their licenses Dates of pending updates. Backups or renovation of licenses To which network the device is connected 3. FLAG EACH DEVICE THAT NEEDS AN UPDATE, BACKUP OR LICENSE RENOVATION. HAVE ALARMS AND REMIDERS OF UPCOMING UPDATES, BACKUPS AND LICENSES RENOVATIONS WITH DATE AND TIME. THE USER WILL BE ABLE SELECT NECESSARY UPDATE, BACK UP OR LICENSE RENOVATION AND EXECTURE IT THROUGH THE SOFTWARE 4. PROPOSITION Aside from the devices the radio station uses computer programs as premier, avra, enco, finalcut, audition, office programs, photoshop, motion, protools, after effects, etc. We propose to them a software that can organize the computer, electronics and programs with the following features: 1. EACH ELECTRONIC WILL BE ORGANIZED BY DEPARTMENT 2. A COMPLETE INFORMATION OF EACH DEVICE WILL BE INCLUDED IN A DATABASE LIKE FORMAT THIS INFORMATION WILL INVLUDE Year of purchase Serial Number Model Brand Price Operating System User Updates Backups List of programs and their licenses Dates of pending updates. Backups or renovation of licenses To which network the device is connected 3. FLAG EACH DEVICE THAT NEEDS AN UPDATE, BACKUP OR LICENSE RENOVATION. HAVE ALARMS AND REMIDERS OF UPCOMING UPDATES, BACKUPS AND LICENSES RENOVATIONS WITH DATE AND TIME. THE USER WILL BE ABLE SELECT NECESSARY UPDATE, BACK UP OR LICENSE RENOVATION AND EXECTURE IT THROUGH THE SOFTWARE 4