In response to the intense business competition, rapid changes in the response to be non-stop demand for and use information systems to support business operations. Information systems development life cycle, requirements analysis phase is the most difficult to plan with the audit steps, so the effective demand analysis software project outputs will be the key to success. This study for the business information systems requirements analysis and validation process improvement studies to the case company information systems requirements analysis approach for analysis. To explore the requirements process often face the problem of the current situation and to cause analysis, and choose to CMMI Requirements Development and Requirements Management flow field as a guide, the recommended reference to CMMI specific goals and specific implementation method is proposed for the case company information system requirements process improvement recommendations aimed at improving the information system needs of the case company to work quality and output of current problems, and to provide general enterprise information system requirements into CMMI process improvement reference. For enterprises want to import the CMMI, but also needs to provide their requirements management process development and implementation of the field of reference.

Ever since the early 90¡¦s the global software market has been growing at a rapid speed. Along with the development of Internet and electronic commerce, the demands for software have been increased dramatically and Taiwanese software firms are encountered serious global competition too. To stay competitive, the Taiwan software industry has to improve the quality of its software products in order to compete in the international IT arena. The present best option is for the Taiwanese software firms to achieve the Software Engineering Institute¡¦s Capability Maturity Model certification. This study compares the major differences on the requirement management process between CMMI level II and level III. The differences include key process¡¦s purpose, activity, and artifact. Two real-word cases were used to illustrate the example and concept. These results provide a practical bases and better understanding for the Taiwanese software firms when they implement CMMI level II or III.

Product development process begins at a very abstract level of understanding the requirements. The data needs to be passed on the next phase of development. This happens after every stage for further development and finally a product is made. This thesis deals with the data exchange process of software development process in specific. The problem lies in handling of data in terms of redundancy and versions of the data to be handled. Also, once data passed on to next stage, the ability to exchange it in reveres order is not existent in evident forms. The results found during this thesis discusses the solutions for the problem by getting all the data at same level, in terms of its format. Having the concept ready, provides an opportunity to use this data based on our requirements. In this research, the problem of data consistency, data verification is dealt with. This data is used during the development and data merging from various sources. The concept that is formulated can be expanded to a wide variety of applications with respect to development process. If the process involves exchange of data - scalability and generalization are the main foundation concepts that are contained within the concept.