摘要：The decisions concerning portfolio selection for army engineering and manufacturing development projects determine the benefit of those projects to the country *** are typically selected based on ex ante estimates of future return values,which are usually difficult to specify or only generated after project launch.A scenario-based approach is presented here to address the problem of selecting a project portfolio under incomplete scenario information and interdependency *** the first stage,the relevant dominance concepts of scenario analysis are studied to handle the incomplete ***,a scenario-based programming approach is proposed to handle the interdependencies to obtain the projects,whose return values are multi-criteria with interval ***,an illustrative example of army engineering and manufacturing development shows the feasibility and advantages of the scenario-based multi-objective programming approach.