Collaborative Service Governance Cycle (CGSL) for eSOA

Executive Summary
“This thesis puts the finger on one of the most important sore spots of SOA: the ability to
independently develop services, top-down from the business perspective in a collaborative
fashion. This is a crucial success factor for SOA, for which this thesis provides valuable
insight and suggested solutions.” – Rob de Maat, EMEA SOA Lead, Deloitte

**Methodology for Service Identification and Service Design
within Collaborative Service Governance Lifecycle Reference Framework**
Joachim von Goetz, Thesis

Download PDF – Executive Summary from the ES Community Advisory Group on eSOA Methodology.pdf

The methodology was developed by the collaboration of Agile Solutions, Arcway, Deloitte, IDS Scheer, Intelligroup, N.V. Nederlandse Gasunie, Pecaso, Questra Saxonia Systems, Stanford University, Syskoplan, University of St. Gallen, Visiprise and Wipro.


Executive Summary from the ES Community Advisory Group on eSOA Methodology_2_0001.png

Executive Summary
“This thesis puts the finger on one of the most important sore spots of SOA: the ability to
independently develop services, top-down from the business perspective in a collaborative
fashion. This is a crucial success factor for SOA, for which this thesis provides valuable
insight and suggested solutions.” – Rob de Maat, EMEA SOA Lead, Deloitte

**Methodology for Service Identification and Service Design
within Collaborative Service Governance Lifecycle Reference Framework**
Joachim von Goetz, Thesis

Today’s business solution design is maturing. Rigid Information Technology (IT) has become the
crucial bottleneck in the scaffolding of modern businesses, to constantly reshape within globally
distributed, pervasive and highly competitive business environments. The classic paradigm of
monolithic solution design aggravated heterogeneous IT complexity and imposed intrinsic burdens,
withholding capacious organizational business agility and continuous reinvention. The emerging
paradigm of service oriented design promises to dismantle imposed bottleneck by permeating and
transmuting the underlying IT scaffolding into a set of reusable, highly flexible services. Service
Oriented Architecture (SOA) hence experiences broad momentum, but is still in it’s fledgling
stages and thus scarce in practice, mainly due to its versatility and opacity in concept. Gartner
therefore manifests SOA as “more an art than a science”. Today’s industry lacks a proofed and
sophisticated methodology for notably the very heart of every service oriented design: the services.
SAP consequentially established the Community Advisory Group Methodology (CAGM) as part of
the Ecosystem’s Enterprise Service (ES) Communities. CAGM consists of SAP stakeholders from
nearly any SOA related team (e.g. Product Architecture, Solution Marketing, Business Consulting,
etc.), top-node universities and industry think tanks (e.g. Stanford, St. Gallen, Wipro, Arcway,
etc.). It is dedicated to review, combine, complement and validate existing methodologies, while
incorporating latest research deliverables for services. Ultimate goal is a synthesis of state-of-theart
SOA concepts, with specific emphasize on the crucial art of service identification and design.
This then forms the external nucleus for the envisioned SAP ES Design Guide version 2.0.

Presented thesis constitutes the crystallization of the group’s ongoing working streams and research
deliverables. It offers, in its core, a formal, coherent and pragmatic methodology as essential
fundament for building and maturing service enabled solutions, alongside systematic, yet unseen,
applicable tools. This thorough methodology diligently embraces the initial stages of service
identification and design, while accurately elaborating interrelated service oriented tenets and
utilized terminology. Service identification deals with finding the right services, within the process Page 2 of 2
of carving out business services as candidates, along organizational requirements. Starting topdown
from a general service delivery strategy, an ideally IT agnostic, organizational consumer
model is crafted with an initial set of service candidates. Business context and service model then
provide a system against which these candidates can be evaluated and brought into focus to
continuously refine and sharpen a conclusive consumer model. Service design deals with designing
services right, based on the process of cutting out business service candidates, derived out of the
consumer model into specific
enterprise services. Right referring
to well and consistent service design
along the provided exhaustive
synthesis of design guidelines
(either organization specific or
industry standard) that forms a
sophisticated blueprint for
organizational design guides. One
selected highlight is the unique and
palpable approach towards wellsuitable
service granularity (see
Figure).

The methodology is furthermore assimilated in the broader context of the Collaborative Service
Governance Lifecycle (CSGL) reference framework. CSGL unveils a detailed process for
appropriate service handling within seven distinct phases (identification and design being the initial
ones), categorized in design- and run time. It thereupon describes comprehensively the bigger
picture on services and their end-to-end implications and rationales. CSGL sheds furthermore light
into the utmost important aspect of collaboration and the positioning of design time repository and
run time registry.

Constituted thorough methodology, embedded in the CSGL, makes the art of SOA tangible,
amenable and ultimately more scientific. Organizations possess now a profound fundament to
consistently start building and maturing SOA, while being ensured to harness promised benefits.
The consistent quality and innate value of the thesis has already been recognized by a variety of
internal and especially external CAGM members, who provided free usable ‘marketing’ material,
such as quotes and logos, as well as interesting follow-up project proposals. Key is now to transfer
the gained knowledge internally and to mutually and beneficially match it with the existing eSOA
expertise. This may, in the long run, enable SAP to clearly be positioned as the state-of-the-art SOA
methodology thought leader and enhance credibility and market momentum.

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