The Preterm Birth and Premature Rupture of Membranes (PROM) Testing ecosystem connects upstream inputs, midstream integration, and downstream clinical use. Upstream suppliers deliver reagents, microfluidic chips, and sensor components that meet diagnostic specifications. Midstream actors—technology developers, OEM manufacturers, and system integrators—assemble these inputs into assay platforms, embed software, and obtain performance certification. Downstream, distributors and service firms provide calibrated instruments to hospitals, obstetric clinics, and reference labs, where clinicians and laboratory staff run tests and interpret results. Value is created by converting raw materials into reliable diagnostic data, captured through equipment sales, consumable contracts, and data‑service agreements, forming a concise value chain analysis.