The authority intends to:(a) amend the existing Future Logistics Information Services (FLIS) (Lognec1/0001) contract with Boeing Defence UK (BDUK) to include a tri-service base inventory management system, based on its existing Air Domain base inventory management system (BIWMS), to replace the fragile and ageing legacy systems (CRISP and SS3); and(b) to establish a new contract with BDUK to replace the existing FLIS contract when it expires in July 2022 for the sustainment of those LOG IS services contracted under FLIS. The new contract will provide capability that Bridges the Gap (BtG) between the FLIS contract and the future long-term strategic solution, known as the Business Modernisation for Support (BMfS) project. BtG will be executed as a Single Source, Qualifying Defence Contract. During the term of the BtG contract the portfolio will be disaggregated and transitioned primarily to the BMfS platform.