Software Installation Methods and App Architecture Models

Question 1

What’s the difference between single platform and cross platform software?

Answer 1

• Single Platform is compatible with only 1 OS.
• Cross Platform is compatible with multiple OS.

Question 2

What’s the difference between Locally installed application, Network Installed Application and SaaS?

Answer 2

• Locally Installed application is installed on client or user machines.
• Network Installed Application is installed on a Server which can be accessed by a client via the network. Must have network connection.
• Saas is hosted on cloud providers server and can be used by a client as long as there’s a network and internet connection.

Question 3

What’s the difference between 1-tier, 2-tier, 3-tier and n-tier?

Answer 3

• 1-tier is the most basic form of software application design.
• 2-tier is client-server tier; application layer + database layer.
• 3-tier is segregated user interface, application logic, databse; offers scalability and flexibility.
• n-tier is inherebntly scalable and can handle complex business processes; one tier does not affect the other.