As we know In an application there is thousands line of code and hundreds of files. In this environment we can't predict exactly that changes in one section will effect how many other sections. For a programmer it is difficult to manage it. But if we notice, basically there is three part in any application: which user sees(interface) which handle interaction between user and business logic code which interact with database(business logic) Example: As we mange things in our house as One place for grocery products(kitchen) Makeup and cosmetics are in one place Medicines are in a fixed place So we can get them with less effort on time. same way MVC works regarding code to which our ROR follows. MVC is just an software architectural Pattern to mange code: View(User interface related code) Controller(bridge between view and model) Model(database related code and business logic) According to MVC, View will never interact directly to Model. It will be the Con
Let's take it streight not round and round. Every programming language is able to produce a full functioning Application. But a programmer always want: Do not type the same code every time which necessary for every application to reduce time of development Now Frameworks came to fulfill it. Frameworks are fast and give us the facility to focus only on Business logics. Let's take an Example from real world: Sculptors have frames to make a specific statue to reduce the chance of mistakes so time can be save and perform faster. Doing work by this way called Frameworks. So ROR(Ruby on rails) is good and demanding framework of Ruby language.