Abstract: In the present scenario all software systems are because they cannot be built with mathematical or physical certainty, Hence in this research paper the comparison of various software development models has been carried out. According SDLC e ach and e very model have the advantage and disadvantage so in this research we have to calculate the performance of each model on behalf of some important features. The concept of system lifecycle models came into existence that emphasized on the need to follow some structured approach towards building new or improved system.