An alignment analysis of military information system architecture based on portfolio decision approach

Business-IT alignment (BITA) is an important research problem of military information system architecture (MISA). Extant research has achieved and controlled the MISA to alleviate the BITA issue from the perspective of architecture management. This article attempts to address the problem in the architecture design phase in advance, in order to maintain a suitable alignment level at the beginning. For problems correlating with BITA in the design phase, functions-systems alignment (FSA) is selected as a study point, and portfolio decision analysis (PDA) is utilized to discuss information systems portfolio problem in it. Method feasibility is demonstrated through an anti-missile case. This paper contributes to improving the alignment quality of MISA by considering the PDA method.