In 1993, Michael Hammer and James Champy advanced the Business Process Reengineering theory, which had promoted the enterprises overall achievement, therefore, raises the Enterprise managers to think carefully of the Business Process Reengineering and the Business Process Management (BPM) software. The BPM provides a consolidated end-to-end perspective of all the processes within the enterprise, and to resolve the problem of the Enterprise Resource Planning system. The Business Architecture Management (BAM) software is to map out the business structure of the enterprise, and make the business process integrated with the business structure closely, the purpose is to build business structure and business process in one unity. This model will support the enterprise managers to see, analyze and control the information technology and system integrations. Via the BAM model, we realize that the Business Architecture contains more views than Business Process. Therefore, the advantage of the BAM software is to have the business structure integrated with business process. In contrast, the disadvantage of the BPM software is to separate the business structure from the business process. The study is based on the scientific logic principle and to create a model of the BAM software. Using the Backus-Naur Form grammar and the graphical language, we define the BAM software model, and list three steps: the first step is to construct structure elements and operations which from the business structure. The second step is to derive the business process from the business structure. The third step is to integrate the business structure with and the business process. An example of Securities Transaction Platform software is developed via the BAM model. In this study, we also compare the BPM with BAM. We conclude that the BAM software will assist the enterprise managers to analyze and control the information technology and system integrations easily. Beside the above conclusion, this study also provides many useful references and suggestions to aid entrepreneurs and system managers to create BAM software.