Relacionar Columnas Curso TICs 3Versión en línea Matching columns system por José Caballero 1 Bottom-Up 2 Certification 3 Assembly 4 Baseline 5 Life Cycle Cost Pertaining to a method or procedure that starts at the lowest level of abstraction and proceeds towards the highest level. Two or more parts or subassemblies joined together to form a complete unit, structure, or other article. The total cost of acquisition, operation, maintenance, and support of an item throughout its useful life, and including the cost of dispersal. A configuration identification document or a set of such documents, formally designated and fixed at a specific time during a configuration item's life cycle. The process of confirming that a system or component complies with its specified requirements and is acceptable for operational use.