The integration and engineering of the ATLAS SemiConductor Tracker Barrel by Abdesselam, A, Allport, P, Anastopoulos, C, Anderson, B, Andricek, L, Anghinolfi, F, Apsimon, R, Atkinson, T, Attree, J, Austin, N, Bangert, A, Barbier, G, Barclay, P, Barr, J, Batchelor, E, Bates, L, Batley, R, Beck, A, Bell, J, Bell, H, Belymam, A, Benes, J, Benes, P, Bernabeu, J, Bethke, S