Object-Oriented paradigm becomes pioneer and best choice while selecting language and writing software solution. In last few decades there was significant change observed in developing software solutions. Most of the application developers prefer the object oriented model to exploit its benefits. The major benefit we can obtain from ObjectOrientation is of course object itself and the feature that enable us making an object persistent. Object-Persistence feature contributes a major role in designing data model. If the techniques used for Object-Persistence are designed correctly then, we can obtain major benefits in the areas of software productivity, maintainability and cost reduction. There are many ways of implementing Object-Persistence among which Gateway-based method, Object-Relational database method and Object-Oriented database method are the three major categories.In this paper, we discuss about the characteristics of various Object-Persistence techniques, the relevant areas in which those techniques can be employed efficiently and how those techniques can be used effectively on the basis of application characteristics and requirements. We also discuss about the benefits and limitations of persistence techniques. Further, our discussion continues on various challenges that come along the way of Object-Persistence and possible solutions to handle those challenges.

In last few decades there was rapid shift observed while writing software solutions. Object oriented model is now globally adapted and preferred by most of the application developers. Object persistence plays a key role in designing data model, business objects working with other business objects. Object persistence could be very efficient if designed correctly. A typical design leads extra overheads in terms of cost, resource utilization, and time. Considering the importance of object persistence, it is very essential to concentrate more on this area. Gateway-based, Objectrelational database and Object-oriented Database are the three major groups of solutions available to implement object persistence.In this paper, we discuss about the features available in Object Persistence methodologies, how and where we should use them efficiently based on the application requirements. Our discussion continues further on positive and negative sides of object persistence methodologies by considering limitations and different application requirements.

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