Maintenance And/Or Subscription Service Of Applications That Are Part Of The Corporate Software, The Purpose Of Which Is The Sale Of Tickets And The Control Of Visitors Of The Ciutadella And The Castle Of The Trinitat De Roses, As Well As To Support The Users Who Use This Software. Achieving This Goal Involves The Execution Of Different Tasks, Therefore Those That Are Exposed Below Are Enunciative And Non -Limiting: 1. Support And Specialized Telephone Support. 2. Web Platform With Personalized Clients Area. 3. Software Updates