McPherson, A.M.A.M.McPhersonMcMullin, J.J.McMullinStevenson, T.T.StevensonDewdney, P.P.DewdneyCasson, A.A.CassonSTRINGHETTI, LUCALUCASTRINGHETTIDeegan, M.M.DeeganHekman, P.P.HekmanAustin, M.M.AustinHarman, M.M.HarmanGibbs, P.P.GibbsVan Es, A.A.Van EsLabate, M.-G.M.-G.LabateSwart, G.G.SwartCiaizzo, M.M.CiaizzoHayden, D.D.HaydenTurner, W.W.Turner2021-02-262021-02-262018978151061953197815106195480277-786Xhttp://hdl.handle.net/20.500.12386/30667This paper will describe the progress of the SKA-1 Telescope during the period from Preliminary Design Review to Critical Design Review. In addition to this, it will provide information on the management of the project with respect to managing cost and scope whilst working within a fixed cost cap. The paper will consider the balance between the technical choices made with the risk of delivering a large, distributed observatory across several continents. In addition, it will consider the challenges of carrying this out whilst developing the organisation towards an Inter-Governmental Organisation. It will consider, briefly, the key management tools used and the lessons learned....ELETTRONICOenConference paper10.1117/12.23124382-s2.0-85051268778000450858000025https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10700/2312438/Square-Kilometer-Array-project-status-report/10.1117/12.2312438.short?SSO=12018SPIE10700E..0YMFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_17 Instrumentation – telescopes, detectors and techniques