Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632730
T. Ploom, A. Glaser, Stefan Scheit
Automation of workflows has been the focus of much research for more than three decades. There has also been significant research about the evolution of workflows. In this paper we describe how to achieve automation of workflows, not only in a single application but in an entire landscape of applications. How can distinctive types of workflow applications be built in an IT landscape? How can the SOA and BPM perspectives be combined in a very large scale system of systems context? We define a platform based approach for the automation of workflows which is in contrast with the classical single application based approach for workflow automation. Furthermore, we describe the core concepts of our workflow execution platform and provide an overview of the results.
{"title":"Platform based approach for automation of workflows in a system of systems","authors":"T. Ploom, A. Glaser, Stefan Scheit","doi":"10.1109/MESOCA.2013.6632730","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632730","url":null,"abstract":"Automation of workflows has been the focus of much research for more than three decades. There has also been significant research about the evolution of workflows. In this paper we describe how to achieve automation of workflows, not only in a single application but in an entire landscape of applications. How can distinctive types of workflow applications be built in an IT landscape? How can the SOA and BPM perspectives be combined in a very large scale system of systems context? We define a platform based approach for the automation of workflows which is in contrast with the classical single application based approach for workflow automation. Furthermore, we describe the core concepts of our workflow execution platform and provide an overview of the results.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121001144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632731
Daniel Knight, Gregory Knight, Nasseh Tabrizi
Large legacy applications are rapidly becoming less practical for both the organizations they service, and for the organizations responsible for servicing them. This paper establishes a process model for refining the initial concept associated with overhauling legacy enterprise software applications, and examines a case study of that process as applied to a real-world legacy software system to demonstrate its usability in a SOA migration.
{"title":"Overhauling legacy enterprise software applications with a Concept Refinement Process Model","authors":"Daniel Knight, Gregory Knight, Nasseh Tabrizi","doi":"10.1109/MESOCA.2013.6632731","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632731","url":null,"abstract":"Large legacy applications are rapidly becoming less practical for both the organizations they service, and for the organizations responsible for servicing them. This paper establishes a process model for refining the initial concept associated with overhauling legacy enterprise software applications, and examines a case study of that process as applied to a real-world legacy software system to demonstrate its usability in a SOA migration.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128081656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632741
A. Bertolino, Antonello Calabrò, G. D. Angelis
The deployment and the execution of applications on dynamic Cloud infrastructures introduces new requirements of adaptability with respect to monitoring. Specifically, the governance of service choreographies enacted over Cloud-based solutions relies on the observation and analysis of events happening at different abstraction layers. Adaptability requirements are even more evident when monitoring deals with Service Level Agreements (SLA) established among the choreography participants. In fact, as the Cloud paradigm offers on-demand solutions as a service, often monitoring rules cannot be completely defined off-line. Thus also the monitoring infrastructure must keep track of the continuous evolution of the underlying environment, and adapt itself accordingly. This paper proposes an adaptive multi-source monitoring architecture that can synthesize on-the-fly SLA monitoring rules following the evolution of the Cloud infrastructure. We demonstrate the idea on a case study and discuss limitations as well as planned further advancements.
{"title":"Adaptive SLA monitoring of service choreographies enacted on the Cloud","authors":"A. Bertolino, Antonello Calabrò, G. D. Angelis","doi":"10.1109/MESOCA.2013.6632741","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632741","url":null,"abstract":"The deployment and the execution of applications on dynamic Cloud infrastructures introduces new requirements of adaptability with respect to monitoring. Specifically, the governance of service choreographies enacted over Cloud-based solutions relies on the observation and analysis of events happening at different abstraction layers. Adaptability requirements are even more evident when monitoring deals with Service Level Agreements (SLA) established among the choreography participants. In fact, as the Cloud paradigm offers on-demand solutions as a service, often monitoring rules cannot be completely defined off-line. Thus also the monitoring infrastructure must keep track of the continuous evolution of the underlying environment, and adapt itself accordingly. This paper proposes an adaptive multi-source monitoring architecture that can synthesize on-the-fly SLA monitoring rules following the evolution of the Cloud infrastructure. We demonstrate the idea on a case study and discuss limitations as well as planned further advancements.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125392589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632736
Juncal Alonso, Leire Orue-Echevarria Arrieta, M. Escalante, Jesús Gorroñogoitia, D. Presenza
Many software companies have in mind jumping into the Cloud in order to take advantage of this technical paradigm as well as the innovative business models associated (such as SaaS). However, taking this leap becomes a hard task since it implies a high uncertainty and a raised risk without knowing when or even if the investment will be recovered. This paper presents the solution proposed by the ARTIST project to assess companies which are considering the migration of their products to Cloud, and provide estimations of the costs, ROI, efforts and migration tasks that this process could imply. The envisioned solution comprises a pre-migration phase through which 1) the maturity (to migrate to Cloud) of the application and the company will be measured, 2) a feasibility analysis both at technical and business level will be performed. In addition to the general approach of the proposed solution, this paper presents the first results obtained by means of a theoretical exercise conducted with the PetStore Java application.
{"title":"Cloud modernization assessment framework: Analyzing the impact of a potential migration to Cloud","authors":"Juncal Alonso, Leire Orue-Echevarria Arrieta, M. Escalante, Jesús Gorroñogoitia, D. Presenza","doi":"10.1109/MESOCA.2013.6632736","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632736","url":null,"abstract":"Many software companies have in mind jumping into the Cloud in order to take advantage of this technical paradigm as well as the innovative business models associated (such as SaaS). However, taking this leap becomes a hard task since it implies a high uncertainty and a raised risk without knowing when or even if the investment will be recovered. This paper presents the solution proposed by the ARTIST project to assess companies which are considering the migration of their products to Cloud, and provide estimations of the costs, ROI, efforts and migration tasks that this process could imply. The envisioned solution comprises a pre-migration phase through which 1) the maturity (to migrate to Cloud) of the application and the company will be measured, 2) a feasibility analysis both at technical and business level will be performed. In addition to the general approach of the proposed solution, this paper presents the first results obtained by means of a theoretical exercise conducted with the PetStore Java application.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122227145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632729
R. Khadka, Amir Saeidi, S. Jansen, Jurriaan Hage
Legacy to Service-Oriented Architecture migration approaches have been extensively researched over the last decade, primarily to reuse the valuable business logic that resides within legacy applications. Interestingly, most of the proposed approaches fail to cover the complete process from the technological, organizational and business perspectives. This paper presents a structured six-phase process that covers both migration planning and execution, and does so by considering the aforementioned perspectives. Furthermore, within each of the six phases of the process, we present a rationale to justify the need of each phase, current practices within each phase, and challenges that require further attention. The proposed structured process is then evaluated by (i) migrating features of two simple yet representative applications to SOA, and (ii) by mapping activities reported in literature. Based on our findings, we believe that the proposed structured process is successfully fitting to capture the essence of the activities that are performed within the legacy to SOA migration domain by combining various perspectives.
{"title":"A structured legacy to SOA migration process and its evaluation in practice","authors":"R. Khadka, Amir Saeidi, S. Jansen, Jurriaan Hage","doi":"10.1109/MESOCA.2013.6632729","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632729","url":null,"abstract":"Legacy to Service-Oriented Architecture migration approaches have been extensively researched over the last decade, primarily to reuse the valuable business logic that resides within legacy applications. Interestingly, most of the proposed approaches fail to cover the complete process from the technological, organizational and business perspectives. This paper presents a structured six-phase process that covers both migration planning and execution, and does so by considering the aforementioned perspectives. Furthermore, within each of the six phases of the process, we present a rationale to justify the need of each phase, current practices within each phase, and challenges that require further attention. The proposed structured process is then evaluated by (i) migrating features of two simple yet representative applications to SOA, and (ii) by mapping activities reported in literature. Based on our findings, we believe that the proposed structured process is successfully fitting to capture the essence of the activities that are performed within the legacy to SOA migration domain by combining various perspectives.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123567872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632735
Qing Gu, P. Lago, Simone Potenza
A main incentive in favor of migrating to the cloud is delegating the management of large volumes of data to cloud providers. To make the notion of data cloud successful, providers must ensure availability, reliability, and data integrity among other qualities. Few researches so far have addressed the potential benefits data cloud provisioning can offer for energy efficiency. In this case study carried out in a multi-national telecommunication organization, we investigate under which circumstances delegating data management to the cloud can add value to cloud customers, in terms of both energy consumption (hence efficiency) and cost when archiving data in the cloud. Results show that data cloud migration is beneficial only if consumers yield certain characteristics in terms of type of data, retention period, and frequency of usage. We design a framework called “Value of Energy framework”, that estimates wastes in the way a company manages data, and hence identify what data can and should be migrated to a cloud provider.
{"title":"Delegating data management to the cloud: A case study in a telecommunication company","authors":"Qing Gu, P. Lago, Simone Potenza","doi":"10.1109/MESOCA.2013.6632735","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632735","url":null,"abstract":"A main incentive in favor of migrating to the cloud is delegating the management of large volumes of data to cloud providers. To make the notion of data cloud successful, providers must ensure availability, reliability, and data integrity among other qualities. Few researches so far have addressed the potential benefits data cloud provisioning can offer for energy efficiency. In this case study carried out in a multi-national telecommunication organization, we investigate under which circumstances delegating data management to the cloud can add value to cloud customers, in terms of both energy consumption (hence efficiency) and cost when archiving data in the cloud. Results show that data cloud migration is beneficial only if consumers yield certain characteristics in terms of type of data, retention period, and frequency of usage. We design a framework called “Value of Energy framework”, that estimates wastes in the way a company manages data, and hence identify what data can and should be migrated to a cloud provider.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133996644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632734
Animesh Chaturvedi, Atul Gupta
In this paper, we present a tool supported approach to perform efficient regression testing of web services. Functional and non-functional web service testing is done with the help of WSDL parsing and regression testing is performed by identifying the changes made thereafter. We identify, categorize, and capture the web service regression testing needs into three different categories, namely, changes in WSDL, changes in code, and selective re-testing of web service operations. To capture above three changes we proposed three intermediate forms of WSDL, namely, Difference WSDL (DWSDL), Unit WSDL (UWSDL), and Reduced WSDL (RWSDL), respectively. These intermediate forms of WSDLs are then combined to form Combined WSDL (CWSDL) which is further used for regression testing of the web service. This approach is prototyped as a tool, named as Automatic Web Service Change Management (AWSCM), which helps in performing the efficient regression testing of web services by selecting the relevant test cases to constructing reduced test suite from the old test suite file of SoapUI. The reduction in the effort for regression testing of web service is estimated by two proposed cost metrics. We present three case studies demonstrating the applicability of the proposed tool for the real world projects.
{"title":"A tool supported approach to perform efficient regression testing of web services","authors":"Animesh Chaturvedi, Atul Gupta","doi":"10.1109/MESOCA.2013.6632734","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632734","url":null,"abstract":"In this paper, we present a tool supported approach to perform efficient regression testing of web services. Functional and non-functional web service testing is done with the help of WSDL parsing and regression testing is performed by identifying the changes made thereafter. We identify, categorize, and capture the web service regression testing needs into three different categories, namely, changes in WSDL, changes in code, and selective re-testing of web service operations. To capture above three changes we proposed three intermediate forms of WSDL, namely, Difference WSDL (DWSDL), Unit WSDL (UWSDL), and Reduced WSDL (RWSDL), respectively. These intermediate forms of WSDLs are then combined to form Combined WSDL (CWSDL) which is further used for regression testing of the web service. This approach is prototyped as a tool, named as Automatic Web Service Change Management (AWSCM), which helps in performing the efficient regression testing of web services by selecting the relevant test cases to constructing reduced test suite from the old test suite file of SoapUI. The reduction in the effort for regression testing of web service is estimated by two proposed cost metrics. We present three case studies demonstrating the applicability of the proposed tool for the real world projects.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127472204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632732
H. Sneed, C. Verhoef, Stephan H. Sneed
This paper describes the reuse of existing classes and methods in an existing object-oriented system as web services in a service-oriented architecture. The approach presented here identifies the interfaces and public methods which can be invoked from outside and generates a WSDL interface to access them. It is a bottom-up approach to creating web services which allows business processes to reuse existing functionality. The tool SoftReuse described in this paper not only generates interfaces to existing public methods in Java and C# code, but also generates a visual documentation of those interfaces and test scripts for testing them. The test scripts use assertions to generate service requests as well as to validate the service responses. The goal is to build the reused services into new S-BPM business processes. This is an extension of the work already made with procedural languages and presented at a previous MESOCA Workshop.
{"title":"Reusing existing object-oriented code as web services in a SOA","authors":"H. Sneed, C. Verhoef, Stephan H. Sneed","doi":"10.1109/MESOCA.2013.6632732","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632732","url":null,"abstract":"This paper describes the reuse of existing classes and methods in an existing object-oriented system as web services in a service-oriented architecture. The approach presented here identifies the interfaces and public methods which can be invoked from outside and generates a WSDL interface to access them. It is a bottom-up approach to creating web services which allows business processes to reuse existing functionality. The tool SoftReuse described in this paper not only generates interfaces to existing public methods in Java and C# code, but also generates a visual documentation of those interfaces and test scripts for testing them. The test scripts use assertions to generate service requests as well as to validate the service responses. The goal is to build the reused services into new S-BPM business processes. This is an extension of the work already made with procedural languages and presented at a previous MESOCA Workshop.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122723587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632733
R. R. Oliveira, Robson Vinicius Vieira Sanchez, J. C. Estrella, Renata Pontin de Mattos Fortes, Valerio Brusamolin
Web services not only are one of the most promising technologies in terms of the availability of network services but also solve the problem of integrating heterogeneous applications on the web. Because of their increasing popularity, maintainability has become an important issue as it helps to reduce maintenance costs and improve software quality. However, from the perspective of evolution and maintenance, there are many issues to be examined. This paper describes a controlled experiment to compare RESTful and SOAP-WSDL web services in terms of specific modifiability sub-characteristics and time spent on web services maintenance. The findings indicate that RESTful web services are more maintainable on the server-side, while SOAP-WSDL web services are more maintainable on the client-side. Studies based on controlled experiments are promising and may help reduce the maintenance costs of web services as well as improve the quality of software-oriented services.
{"title":"Comparative evaluation of the maintainability of RESTful and SOAP-WSDL web services","authors":"R. R. Oliveira, Robson Vinicius Vieira Sanchez, J. C. Estrella, Renata Pontin de Mattos Fortes, Valerio Brusamolin","doi":"10.1109/MESOCA.2013.6632733","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632733","url":null,"abstract":"Web services not only are one of the most promising technologies in terms of the availability of network services but also solve the problem of integrating heterogeneous applications on the web. Because of their increasing popularity, maintainability has become an important issue as it helps to reduce maintenance costs and improve software quality. However, from the perspective of evolution and maintenance, there are many issues to be examined. This paper describes a controlled experiment to compare RESTful and SOAP-WSDL web services in terms of specific modifiability sub-characteristics and time spent on web services maintenance. The findings indicate that RESTful web services are more maintainable on the server-side, while SOAP-WSDL web services are more maintainable on the client-side. Studies based on controlled experiments are promising and may help reduce the maintenance costs of web services as well as improve the quality of software-oriented services.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131487333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-17DOI: 10.1109/MESOCA.2013.6632740
C. Pahl, Huanhuan Xiong
In the cloud computing technology stack, infrastructure has matured more than platform or software service technologies with respect to languages and techniques used for architecting and managing respective applications. Platform-as-a-Service (PaaS) emerges as a focus for the near future that we will focus on. We look at software architecture and programming concerns in the context of migration to PaaS solutions, i.e. the transition of platform systems from on-premise to cloud solutions. We investigate best-practice approaches in cloud-aware coding in the form of patterns and formulate these as a migration process. While one-to-one mappings of software from on-premise to cloud platforms are possible, statelessness and data externalisation from stateful sessions and applications emerge as solutions if cloud benefits such as elasticity and performance are aimed at.
{"title":"Migration to PaaS clouds - Migration process and architectural concerns","authors":"C. Pahl, Huanhuan Xiong","doi":"10.1109/MESOCA.2013.6632740","DOIUrl":"https://doi.org/10.1109/MESOCA.2013.6632740","url":null,"abstract":"In the cloud computing technology stack, infrastructure has matured more than platform or software service technologies with respect to languages and techniques used for architecting and managing respective applications. Platform-as-a-Service (PaaS) emerges as a focus for the near future that we will focus on. We look at software architecture and programming concerns in the context of migration to PaaS solutions, i.e. the transition of platform systems from on-premise to cloud solutions. We investigate best-practice approaches in cloud-aware coding in the form of patterns and formulate these as a migration process. While one-to-one mappings of software from on-premise to cloud platforms are possible, statelessness and data externalisation from stateful sessions and applications emerge as solutions if cloud benefits such as elasticity and performance are aimed at.","PeriodicalId":226841,"journal":{"name":"2013 IEEE 7th International Symposium on the Maintenance and Evolution of Service-Oriented and Cloud-Based Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134149951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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