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

More documents

Recommendations

Info

Chapter 6Conclusion6.1 ConclusionThis chapter summarises outcomes of the work. The section is broken into threesection1. Answers to Research Questions – provides answers to research questionsasked in the first chapter2. Future Works – addresses works that could derive from outcome of thisstudy3. Summary – provides summary of contribution brought by the thesis6.2 Answers to Research QuestionsRQ 1 What are the existing techniques of migration toward SOA?According to Z.Zhang and H.Yang there are three types of migration to SOA[84]: White–Box, Grey–Box and Black–Box. Each type is characterised by differentproperties. The list below presents example techniques classified to thosethree types of migration( see chapter number 2).1. White box–This technique needs deep insight view into existing code anddocumentation of the migrated system. Example: SMART[49]2. Gray box–This approach is a mix of white and black box techniques. Applicationof the technique requires analysis of code of the application andthe system with subsystems. Example: Taxonomy Analysis[84].3. Black box–The technique treats the migrated system as a black box. Migrationaccording this technique bases upon analysis of system’s input andoutput. Example: Wrapping[23]146
Chapter 6. Conclusion 147There are also some attempts of migration toward SOA based on architecturalpattern applied in the migrated systems. Some patterns like Pipe–and–Filtersare already part of SOA[70]. Other patterns like Client–Server have prototypesof frameworks automating migration to SOA [36]. There are also some attemptsof migration of MVC[73][67][28][78], PCBMER[52] or Peer–to–Peer[69].In addition to those works, a standard (Architectural–Driven Modernisation)of modernisation of systems was identified. The standard considers migration ofsystems as a form of modernisation. The standard consists of seven substandards.At the time being, only two substandards are defined. The third substandard(issued in 2009) is especially important in context of this work. The standard isnamed “Pattern Recognition” and is meant to identify patterns and anti–patternsin order to identify requirements and opportunities for transformation(see section2.2.1).RQ.2 What are drawbacks and advantages of identified techniques ofmigration toward SOA?The presented techniques of migration have different approach to migration.Their advantages and drawbacks are consequences of the way how they treat themigrated system. Some of advantages and drawbacks were identified while establishingcontext of the work (see section 1.1) while others were identified duringstudying related works (see sections 2.1.2, 2.1.3 and 2.1.5 ). Here only the mainadvantages and drawbacks are mentioned. See respective sections for full list ofadvantages and drawbacks. The sections for particular techniques are mentionedbelow.SMART was classified as a White–Box technique. It generates a lot of documentationbut it also gives a deep insight view into the system (see 2.1.2 for moreinformation ).Taxonomy Analysis was classified as a Gray–Box technique. The main advantageof the technique is the fact that relationships between services are identifiedduring identification of services. Application of the technique also gives a deepunderstanding of the system and relationship between its element. The drawbackis that the technique is executed both on code and documentation of thesystem. The problem here is with documentation that may not be maintainedand the result of the analysis many be misleading(see 2.1.3 for more information).Wrapping is the last colour technique. This Black–Box technique is very specificbecause it does not require analysis of the code of the system. It treats thesystem as a black box. Unfortunately, application of the technique requires well
Page 1 and 2:
Master ThesisSoftware EngineeringTh
Page 3 and 4:
AbstractContext: Several examples o
Page 5 and 6:
List of Figures1.1 Research methodo
Page 7 and 8:
List of Tables3.1 Summary of archit
Page 9 and 10:
3.3.1 Definition of Pattern Languag
Page 11 and 12:
Chapter 1Introduction1.1 Background
Page 13 and 14:
Chapter 1. Introduction 3technique
Page 15 and 16:
Chapter 1. Introduction 5was notice
Page 17 and 18:
Chapter 1. Introduction 7do not pro
Page 19 and 20:
Chapter 1. Introduction 9Chapter 4
Page 21 and 22:
Chapter 2. Related Work 11This chap
Page 23 and 24:
Chapter 2. Related Work 13(b) Chara
Page 25 and 26:
Chapter 2. Related Work 15Figure 2.
Page 27 and 28:
Chapter 2. Related Work 17Drawbacks
Page 29 and 30:
Chapter 2. Related Work 19Figure 2.
Page 31 and 32:
Chapter 2. Related Work 21Advantage
Page 33 and 34:
Chapter 2. Related Work 23between a
Page 35 and 36:
Chapter 2. Related Work 252. Applic
Page 37 and 38:
Chapter 2. Related Work 274. Mediat
Page 39 and 40:
Chapter 2. Related Work 292.3 Summa
Page 41 and 42:
Chapter 3. Architectural Patterns 3
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Chapter 4. Service Oriented Archite
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106: Chapter 4. Service Oriented Archite
Page 113 and 114: Chapter 5. Guidelines 1035.1 Patter
Page 115 and 116: Chapter 5. Guidelines 105Descriptio
Page 117 and 118: Chapter 5. Guidelines 107Result Con
Page 119 and 120: Chapter 5. Guidelines 109ContextAn
Page 121 and 122: Chapter 5. Guidelines 111Result Con
Page 123 and 124: Chapter 5. Guidelines 113System’s
Page 125 and 126: Chapter 5. Guidelines 115ViewSchema
Page 127 and 128: Chapter 5. Guidelines 117ViewViewCo
Page 129 and 130: Chapter 5. Guidelines 119ViewViewCo
Page 131 and 132: Chapter 5. Guidelines 121ViewViewPr
Page 133 and 134: Chapter 5. Guidelines 123FrontendFr
Page 135 and 136: Chapter 5. Guidelines 125complicati
Page 137 and 138: Chapter 5. Guidelines 127Concluding
Page 139 and 140: Chapter 5. Guidelines 129UsecasesTh
Page 141 and 142: Chapter 5. Guidelines 131puter (ext
Page 143 and 144: Chapter 5. Guidelines 133Group 3 ma
Page 145 and 146: Chapter 5. Guidelines 135Output: Du
Page 147 and 148: Chapter 5. Guidelines 137generation
Page 149 and 150: Chapter 5. Guidelines 139(a) Fronte
Page 151 and 152: Chapter 5. Guidelines 141Figure 5.1
Page 153 and 154: Chapter 5. Guidelines 143Figure 5.1
Page 155: Chapter 5. Guidelines 145FrontendSc
Page 159 and 160: Chapter 6. Conclusion 149RQ.6 How t
Page 161 and 162: References[1] http://www.soa-manife
Page 163 and 164: References 153[22] Frank Buschmann,
Page 165 and 166: References 155[46] Dirk Krafzig, Ka
Page 167 and 168: References 157[67] Xiaohong Qiu. Bu
show all

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

Create successful ePaper yourself

Delete template?

Save as template?