BIS Assignment@ Praxis Business School : What is System Architecture ?

RAHUL: Hello Sneha, can you explain me what is systems architecture?

ME: What do you want to know about systems architecture?

RAHUL: Explain me from the scratch about it?

ME: At first, I would like to tell you what architecture is all about. It is a visual representation of the hardware and software components that explains which software is running on which hardware box and how are the various hardware boxes connected to each other. You can consider laptop as an architecture model where the laptop is a hardware and any office package running on it is software. Software is the application and laptop is the platform.
So, have you understood the basics, if yes then I will proceed.

RAHUL: Yes, you can proceed.

ME: Now, I am going to explain you about the different forms of architecture:
It begins from:
Single tier architecture
Two tier architecture
Three tier architecture
Multi-tier architecture

Single tier architecture: It  may be fine for personal applications like word processor or spreadsheets.

Two tier architecture: In a two-tier architecture the data is separated from the application and stored on a different platform. Each user has a copy of the application on his own machine, the client machines but the data- the common data is used by all- is stored in a common machine called srver.

Three tier architecture: In this application has been split into two parts:
one part handles only the user interface, the other part which has the complex business logic.

Multi tier architecture: Multi-tier architecture is a client-server architecture in which presentation, application processing, and data management functions are logically separated. For example, an application that uses middleware to service data requests between a user and a database employs multi-tier architecture.

RAHUL: Thank you so much sneha for this explanation.