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OSS vs BSS architecture, catalogue-driven design, TM Forum-style domain boundaries and decomposing monolithic telecom stacks safely.
3 questions in Telecom.
Stop trying to build one environment containing eight vendors' products. Pin every boundary with a contract test each side can run alone, simulate the network, keep a small high-fidelity path for whole journeys, and put continuous synthetic orders through production as the real assurance.
OSS vs BSS architecture separates commercial systems such as catalogue, ordering, charging and billing from network systems such as inventory, activation and assurance. The boundary works because commercial products and network capabilities change at different rates.
Three separate requests hide in that sentence. Pricing new sales is a new catalogue version; repricing the base is a commercial migration per subscription with notice; changing contents is both. The usual defect is not an edited offering but a shared object one level down that both versions reference.