Telecom: OSS/BSS

The telecommunications sector has its own map of systems, its own vocabulary and its own standards. This section collects what a QA engineer needs to find their bearings in it, from the big picture down to the service order.

• OSS/BSS for QA — what an operator's operations and business systems are, the TM Forum standards (Open APIs, ODA, eTOM, SID) and what testing means in this domain.
• The catalog: offers, CFS, RFS and resources — the hierarchy, decomposition rules and translations, and how to validate a catalog deployment.
• Service orders (TMF641) — the state machine, execution order, rejections, cancellations, and why the inventory is the truth.
• Fallout management — retry, continue, cancel and restart, diagnosing a fallout, and testing the rules that categorize them.
• Testing workflows on a BPM engine — versions, skipped tasks, human tasks and forms: the traps of process engines.