Applied systems engineering in a small scale project

ABSTRACT Since the start of the design efforts in 2003, the design of the Optical Bench Assembly for MIRI is detailed and finalized. MIRI (‘Mid Infrared Instrument’) is the combined imager and integral field sp ectrometer for the mid infrared under development for the James Webb Space Telescope. MIRI is developed by a combined European-US Consortium. As part of this consortium, ASTRON develops the Spectrometer Main Optics Working in such a large international consortium requires focus on traceability of requirements, design, interface and veri fication data. This is achieved using several systems engineering practices lik e requirement analyses and allocation, technical performance management and configuration management. These processes are tailored to the complexity and scale of the project. The paper summarizes these practices and provides examples of th e tailoring process and system engineering tools used. Keywords: Systems, Engineering, JWST, MIRI, Spectrometer, tailoring 1 INTRODUCTION