This technical write up is to "Implement Roller coaster control system using Structured Analysis & Design concept with Waterfall Model & Object Oriented Analysis and Design Concepts with Unified Modeling Language(UML) in Rational Rose Real Time". Structured Analysis is a data-oriented approach to conceptual modeling; Common feature is the centrality of the dataflow diagram, mainly used for information systems. It is implemented using model E-R diagram, Context diagram, Data flow/Control flow diagram, Data dictionary & Test case is developed. Object oriented concepts are used in the analysis, Implementation and design phases, it provides a simple, powerful mechanism for identifying objects, the building blocks of software to be developed. It mainly concern with the decomposition of the problems in two parts & establishing a logical model to describe the system. UML is a Graphical language for visualizing, specifying, Constructing and document the software system. It is implemented using Rational Rose Real Time software. The system is developed to provide user comfortable activities.