Measuring quantitative maintainability of conceptual model for re-engineering process

The purpose of this proposed research is to measure quantitative maintainability of the conceptual model. The International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) has defined six external characteristics of the quality assurance; namely, functionality, reliability, usability, maintainability, efficiency, and portability. To measure maintainability of the software, it is necessary to determine first how much the software requires the modification. This research incorporated the case studies of the conceptual model that represents the data of the required software. The conceptual models were converted into improved form by using the schema transformations rules in order to represent the representation at higher level of abstractions. This research determined how much the software requires the maintenance during the re-engineering process. The conceptual models were improved so that reverse engineering and forward engineering can be done easily during the re-engineering process. The proposedresearch was helpful in the planning and analysis phase of the software development for reengineering process to determine the economic, technical, operational, and schedule feasibility of the software.