Migration of a Chosen Architectural Pattern to Service Oriented ...

Chapter 5GuidelinesThis chapter presents elaborated guidelines in order of their application. Theguidelines apply white-box approach (see section 2.1.1 for example white boxapproach). The presented white-box approach defines process which requirescontext identification, service identification and identification of the target architecture.While the target architecture is already identified (see figure 4.4). Thecontext analysis and service identification is possible because the documentationand source code is available. Each guideline is meant to introduce one SOA architecturalpattern into target architecture. The chapter is organized into followingsections:1. Pattern Languages– the section presents motivation behind chose of patternlanguages as a mean of transformation between two architectural. Additionally,the section describes migrated and the target architectures are patternlanguages.2. Guidelines– Guidelines for migration are meant to simplify migration toSOA. The guidelines are implementation of translation between migratedand target pattern language. Order of application of each guideline reflectthe description section of the target pattern language. Each guidelines introducesone SOA pattern (see section 4.6.1 for full list of identified SOApatterns) into architecture. The target architecture (see figure 4.4 for targetarchitecture) is a result of application of all the guidelines. This sectionpresents how guidelines were created and what determines order of theirapplication. Guidelines are described by “How to” section and figure presentingstate before application of the guideline and after the application.3. Project for migration – the section presents briefly a project selected foran example migration along with selection criteria and their application.Migration of the project illustrates how to apply the guidelines.4. Application of the guidelines– the section presents an example applicationof guidelines and technical issues that were identified during migration.5. Discussion– the section presents a discussion about guidelines and the targetarchitecture that is created as result of their application.102