Typically, testing needs proper documentation explaining where, what and how to test. If testing of standard software needs checklists or test scenarios, OSS/BSS testing definitely requires a testing model.
QA Core for Executives
There are a wide variety of billing providers, and choosing one for a particular project can be a complex process. No matter which provider you choose, the most difficult step is actually implementing a new billing solution once it is complete.
Which product to choose for testing? Which tariff plan to choose for testing? What kind of charges to check, and what type of subscribers to use?