28-10-2017, 07:53 PM
06-11-2017, 09:50 AM
Object oriented analysis and design (OOAD) is a popular technical approach to analyzing and designing an application, system or business through the application of object-oriented programming, as well as the use of visual models during development life cycles to promote better communication and product quality. According to the popular guide Unified Process, OOAD in modern software engineering is best done iteratively and incrementally. The iteration by iteration, the results of the OOAD activities, the analysis models for OOA and the design models for OOD respectively, will be refined and will evolve continuously, driven by key factors such as risks and commercial value.
History
In the early days of object-oriented technology before the mid-1990s, there were many different methodologies for software development and object-oriented modeling, often linked to computer-aided software engineering tool providers ( CASE). There were no standard notations, consistent terms and process guides that were the main concerns at that time, which reduced communication efficiency and lengthened learning curves.
Some of the well-known early object-oriented methodologies were inspired by gurus such as Grady Booch, James Rumbaugh, Ivar Jacobson (the Three Friends), Robert Martin, Peter Coad, Sally Shlaer, Stephen Mellor and Rebecca Wirfs-Brock. .
In 1994, the Three Friends of Rational Software began working together to develop the Unified Modeling Language (UML). Later, together with Philippe Kruchten and Walker Royce (Winston Royce's eldest son), they have led a successful mission to merge their own methodologies, OMT, OOSE and Booch, with diverse perspectives and experiences of other industry leaders in the Rational Process Unified (RUP), an integral and iterative and incremental guide and framework of processes to learn the best practices of software development and project management in the industry. Since the Unified Process family has probably become the most popular methodology and reference model for object-oriented analysis and design.