Application Indicators as Business Metrics for Accessing Apps

There are some typical situations that require the use of testing approach relying on finite state machines and / or applications in which this method is often used.

1. Software controlled by the menu. Developers of commercial programs to be managed by menus, as a rule, use explicit finite state machines when designing their menus. In particular, they use a system testing method involving testing a system with a finite number of states to verify the correctness of their menus.
2. 2. Object-oriented software. A model with a finite number of states is used in most object-oriented design paradigms. Adequate testing of the methods implies adequate testing of the state behavior. In this case, the need to use the system testing method (system that is represented as a finite state machine) is obvious.

It is likely that you will be unable to increase confidence of your customers even if your production is created in accordance with international quality standards. To ensure readiness of software apps it is necessary to test them across their entire life cycle. Quality control consultants will advise you on how to increase common satisfaction from your products that they verify and how to make your internal processes more efficient.  

3. Protocols. Discussing the protocol testing methods is beyond the scope of this article. Many books are devoted to this subject, and all of them reflect the assumption that you know how to test systems with a finite number of states [CHOW88, HOLZ87, SARI87, SIDH89].
4. Device drivers. Most devices behave like systems with a finite number of states, and most drivers include such systems.
5. Replacement of hardware. The tasks once assigned to hardware are now increasingly being addressed programmatically. This applies not only to electronics, but also to mechanical and electromechanical devices. The article quoted in the journal Scientific America predicts the use of microprocessors (and related software) in light switches, electric shavers (2 kilobytes), automobile transmissions (30 kilobytes of code), TV (500 kilobytes). But, for the most part, the behavior of such software is implemented as the behavior of systems with a finite number of states.
6. 6. Installation software. Software designed for installation and configuration of programs often behaves like a system with a finite number of states and can be effectively tested using appropriate methods.
7. Backup & recovery software. The software, whose task is to backup and (especially) restore, behaves in many ways like a system with a finite number of states. We see an increase in the number of dual-processor file or network servers. Such systems are traditionally tested using methods for testing systems with a finite number of states.