Service-Orientation Architecture (SOA) is an architectural style for software, where the main components are loosely coupled, interoperable, distributed pieces of logic provided as Web services (WSs). Service-Orientation (SO) is a paradigm that provides WSs with a set of design principles in order to conform to SOA. Service-Oriented Software Engineering (SOSE) concerns with processes and tools to build and provide software systems as composition of WSs with respect to SOA. This work proposes to assess different types of approaches within a framework that considers critical perspectives such as: (i) Building blocks used to specify functional requirements with respect to business/IT alignment, (ii) SOA principles and drivers, (iii) SO design paradigm, (iv) solution lifecycle, modeling, views, and CASE tools, and (v) inspection of solution quality attributes. The framework is meant to answer the question "to what extent a solution provided by any service-oriented development method would conform to SO?" in order to be used in: (a) comparing the approaches themselves, and (b) highlighting issues that need further research.