(The service life cycle
is described in detail in Chapters 2 and 3.)
What are these modeling disciplines that must be rigorously followed throughout the service
development life cycle? Service-oriented modeling disciplines intrinsically focus on six areas
of expertise, as depicted in Exhibit 1.9: (1) service-oriented conceptualization, (2) service-oriented
discovery and analysis, (3) service-oriented business integration, (4) service-oriented design, (5)
conceptual architecture, and (6) logical architecture. These disciplines are preliminarily presented
in the sections that follow and are discussed in detail throughout the book (see Chapters 4
through 16).
SERVICE-ORIENTED CONCEPTUALIZATION. The service-oriented modeling process starts from
the service conceptualization phase in which the driving concepts behind future solution services
are identified. But here the focus is not on concrete software implementation. What is required
is to establish a set of abstractions, a general terminology that offers solutions to business or
technological requirements. It is important to remember that the conceptualization discipline
advocates following a concept discovery methodology and process that ultimately yields intangible
service-oriented assets known as conceptual services.
Exhibit 1.10 illustrates the two major milestones in the service conceptualization process:
attribution analysis and conceptual service identification.
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