ServiceTechMag.com > Archive > Issue VII: May 2007
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Finding Services in the Mainframe

Mike Oara

Mike Oara

It is an accepted fact that legacy applications implicitly contain services which may be exposed to the outside world. However, the identification of such services is not a trivial task. A number of questions must be answered. Should one begin by deriving services from the legacy application, or rather start with all potential services and decide which would fit actual business requirements? Also, if certain services are required, what is the best way to find them within a typical legacy application? And, what is the most suitable degree of granularity at which they should be defined? This article answers such questions and develops a rational and systematic approach for locating and extracting services from legacy environments in support of SOA and service-oriented computing...


Quality Assurance for SOA Through Process Cadence

Wayne Ariola

Wayne Ariola

These days, most organizations moving ahead with SOA projects are aware of the fact that traditional design and development approaches will need to undergo some significant changes. Often overlooked, however, are the processes in place for ensuring the ultimate quality of delivered service-oriented solutions. This article explores the concept of "process cadence" as it applies to the modernization of quality assurance in support of SOA. It provides a step-by-step process for realizing process cadence by taking both top-down and bottom-up delivery considerations into account and explores both technological and organizational issues and considerations unique to testing and applying quality assurance to SOA implementations and service-oriented solutions...


SOA Principles: An Introduction to the Service-Orientation Paradigm

Thomas Erl

Thomas Erl

The key to getting the most out of SOA lies within the knowledge of how to create "truly" service-oriented solution logic. That knowledge has been documented as part of the service-orientation design paradigm. As with object-orientation, service-orientation represents a distinct approach to designing solution logic in support of a very specific set of goals. This paper (consisting of book excerpts from "SOA: Principles of Service Design" and published on a separate Web site at www.SOAPrinciples.com) introduces the design principles that comprise the service-orientation design paradigm and further explores various aspects and effects of applying service-orientation in the real world...


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