The Contractor shall provide the Parent IDIQ SOW Tasks (Task Areas) 1, 2, 3, 4, and 5 as further described below: a) Hosting (Task 2) and maintenance (Task 3) for Rave-Classic (or RaveEDC), and TSDV for active trials conducted by the NCI multi-center program. Trial activity is based on database action during the prior month (ex. data capture, query, export). b) Note: NCI is currently using Rave-Classic for majority of its studies and at some time in the future NCI may transition to Rave-EDC. The contractor shall support relevant transition activities and provide professional support for RAVE-EDC as needed under a Task Order. NCI is already using Rave-EDC for some studies. c) Hosting (Task 2) and professional services (Task 4) for approximately 19 production and test URLs, identified in Reference #1. The NCI may add new URLs or modify existing ones as needed (Task 5). d) Professional services (Task 4): 1. To NCI contractors in support of system integration with NCI CORE applications 2. To the following NCI contractors for hosting, maintenance, and study development/management: (1) Clinical Trials Support Unit (CTSU) (2) Clinical Trials Monitoring Service (CTMS) 3. To ensure consistency, standardization, and best practices across the NCI multi-center URL holders (see reference #1) and the Alliance Network. Note: the Alliance has an independent contract for Rave support services. This NCI contract is limited to support for Medidata ancillary products.