Combining the Strengths of BPEL and Mule ESB

2014 ◽  
Vol 24 (03) ◽  
pp. 347-390
Author(s):  
Aimrudee Jongtaveesataporn ◽  
Shingo Takada
Keyword(s):  
Business Process ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Control Flow ◽  
Configuration File ◽  
Application Framework ◽  
Loosely Coupled ◽  
Technology Services ◽  
Service Oriented ◽  
Business Process Execution

Service Oriented Architecture (SOA) provides an application framework which integrates variety of technology services in a loosely coupled way. Mule Enterprise Service Bus (ESB) is a widely-used ESB product that provides important functions such as message routing, message transformation, protocol-mediation, and event handling. These functions enable Mule ESB to integrate services implemented on various platforms and technologies. However, Mule ESB does not support business logic at all. Another approach to integrate services is to use a business process language such as BPEL (Business Process Execution Language). BPEL is used to define activities along with control flow. It is limited to Web service connections. One major difference is that BPEL is capable of orchestrating a business process with programming constructs, whereas Mule ESB is capable of processing messages in many protocal connections. Both BPEL and Mule ESB have different advantages. Unfortunately, neither one is powerful enough to solve some classes of business problems. In this paper we present the COMBO framework, which merges the strengths of Mule ESB and BPEL. We develop a tool to translate an extended BPEL file to a Mule ESB configuration file. The configuration file is used within a Mule ESB to execute the process that has been described within the BPEL document. We add extension modules to the standard Mule ESB for supporting BPEL functions that Mule ESB does not provide. The extended ESB has capabilities for supporting variable assignment and conditional branches in complex business processes. Our translation can cover frequently used activities in business processes. We also present case studies that use many business activities to show how the COMBO framework supports various activity translation.

An Open Source e-Procurement Application Framework for B2B and G2B

2011 ◽  
pp. 76-97 ◽  
Author(s):  
Georgousopoulos Christos ◽  
Xenia Ziouvelou ◽  
Gregory Yovanof ◽  
Antonis Ramfos
Keyword(s):  
Open Source ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Cost Effective ◽  
Assessment Process ◽  
Application Framework ◽  
Two Phase ◽  
Model Driven ◽  
Service Oriented ◽  
The Cost

Since the early 1980s, Open Source Software (OSS) has gained a strong interest and an increased acceptance in the software industry that has to date initiated a “paradigm shift” (O’Reilly, 2004). The Open Source paradigm has introduced wholly new means of software development and distribution, creating a significant impact on the evolution of numerous business processes. In this chapter we examine the impact of the open source paradigm in the e-Procurement evolution and identify a trend towards Open Source e-Procurement Application Frameworks (AFs) which enable the development of tailored e-Procurement Solutions. Anchored in this notion, we present an Open-Source e-Procurement AF with a two-phase generation procedure. The innovative aspect of the proposed model relates to the combination of the Model Driven Engineering (MDE) approach with the Service-Oriented Architecture (SOA) paradigm for enabling the cost-effective production of e-Procurement Solutions by facilitating integration, interoperability, easy maintenance, and management of possible changes in the European e-Procurement environment. The assessment process of the proposed AF and its resulting e-Procurement Solutions occurs in the context of G2B in the Western-Balkan European region. Our evaluation yields positive results and further enhancing opportunities for the proposed Open Source e-Procurement AF and its resulting e-Procurement Solutions.

Behavioral Attestation for Web Services Based Business Processes

2010 ◽  
Vol 7 (3) ◽  
pp. 52-72 ◽  
Author(s):  
Masoom Alam ◽  
Mohammad Nauman ◽  
Xinwen Zhang ◽  
Tamleek Ali ◽  
Patrick C. K. Hung ◽  
...  
Keyword(s):  
Business Process ◽  
Trust Management ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Trusted Computing ◽  
Business Services ◽  
Dynamic Composition ◽  
Open Set ◽  
Service Oriented ◽  
Root Of Trust

Service Oriented Architecture (SOA) is an architectural paradigm that enables dynamic composition of heterogeneous, independent, multi-vendor business services. A prerequisite for such inter-organizational workflows is the establishment of trustworthiness, which is mostly achieved through non-technical measures, such as legislation, and/or social consent that businesses or organizations pledge themselves to adhere. A business process can only be trustworthy if the behavior of all services in it is trustworthy. Trusted Computing Group (TCG) has defined an open set of specifications for the establishment of trustworthiness through a hardware root-of-trust. This paper has three objectives: firstly, the behavior of individual services in a business process is formally specified. Secondly, to overcome the inherent weaknesses of trust management through software alone, a hardware root of-trust devised by the TCG, is used for the measurement of the behavior of individual services in a business process. Finally, a verification mechanism is detailed through which the trustworthiness of a business process can be verified.

Business Process Modeling with Services

2013 ◽  
pp. 177-200
Author(s):  
Youcef Baghdadi ◽  
Naoufel Kraiem
Keyword(s):  
Reverse Engineering ◽  
Business Process ◽  
Process Modeling ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Source Code ◽  
Legacy Systems ◽  
Service Oriented ◽  
Business Functions ◽  
Maintenance Process

Reverse engineering techniques have become very important within the maintenance process providing several benefits. They retrieve abstract representations that not only facilitate the comprehension of legacy systems but also refactor these representations. Business process archaeology has emerged as a set of techniques and tools to recover business processes from source code and to preserve the existing business functions and rules buried in legacy source code. This chapter presents a reverse engineering process and a tool to retrieve services from running databases. These services are further reused in composing business processes with respect to Service-Oriented Architecture, a new architectural style that promotes agility.

Service Identification and Specification with SoaML

2012 ◽  
pp. 102-125 ◽  
Author(s):  
Michael Gebhart
Keyword(s):  
Business Processes ◽  
Service Oriented Architecture ◽  
Cloud Services ◽  
Legacy Systems ◽  
Model Driven ◽  
Service Identification ◽  
Service Oriented ◽  
Service Components ◽  
Business Process Execution ◽  
Architecture Modeling

This chapter focuses on the identification and specification of services based on prior modeled business processes and legacy systems. The resulting service interfaces and service components formalized by using the Service oriented architecture Modeling Language (SoaML) describe the integration of legacy systems into a service-oriented application landscape. The legacy systems provide services for integration purposes and represent the implementations of service components. Additionally, the resulting architecture allows functionality of legacy systems to be replaced with functionality provided by external cloud services. According to model-driven development concepts, the formalized service interfaces and service components as part of the service designs can be used to automatically derive service interface descriptions using the Web Services Description Language (WSDL). These descriptions enable the technical integration of legacy systems. If necessary, service implementations based on the Service Component Architecture (SCA) and the Business Process Execution Language (BPEL) can be generated.

Behavioral Attestation for Web Services Based Business Processes

2012 ◽  
pp. 308-329
Author(s):  
Masoom Alam ◽  
Mohammad Nauman ◽  
Xinwen Zhang ◽  
Tamleek Ali ◽  
Patrick Hung ◽  
...  
Keyword(s):  
Business Process ◽  
Trust Management ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Trusted Computing ◽  
Business Services ◽  
Dynamic Composition ◽  
Open Set ◽  
Service Oriented ◽  
Root Of Trust

Service Oriented Architecture (SOA) is an architectural paradigm that enables dynamic composition of heterogeneous, independent, multi-vendor business services. A prerequisite for such inter-organizational workflows is the establishment of trustworthiness, which is mostly achieved through non-technical measures, such as legislation, and/or social consent that businesses or organizations pledge themselves to adhere. A business process can only be trustworthy if the behavior of all services in it is trustworthy. Trusted Computing Group (TCG) has defined an open set of specifications for the establishment of trustworthiness through a hardware root-of-trust. This paper has three objectives: firstly, the behavior of individual services in a business process is formally specified. Secondly, to overcome the inherent weaknesses of trust management through software alone, a hardware root of-trust devised by the TCG, is used for the measurement of the behavior of individual services in a business process. Finally, a verification mechanism is detailed through which the trustworthiness of a business process can be verified.

Verifiable Model Construction for Business Processes

2021 ◽  
Vol 31 (07) ◽  
pp. 1017-1042
Author(s):  
Shunhui Ji ◽  
Liming Hu ◽  
Yihan Cao ◽  
Pengcheng Zhang ◽  
Jerry Gao
Keyword(s):  
Business Process ◽  
Business Processes ◽  
Control Flow ◽  
Service Description ◽  
Data Types ◽  
Input Language ◽  
Business Process Execution Language ◽  
Composite Service ◽  
Business Process Execution

Business process specified in Business Process Execution Language (BPEL), which integrates existing services to develop composite service for offering more complicated function, is error-prone. Verification and testing are necessary to ensure the correctness of business processes. SPIN, for which the input language is PROcess MEta-LAnguage (Promela), is one of the most popular tools for detecting software defects and can be used both in verification and testing. In this paper, an automatic approach is proposed to construct the verifiable model for BPEL-based business process with Promela language. Business process is translated to an intermediate two-level representation, in which eXtended Control Flow Graph (XCFG) describes the behavior of BPEL process in the first level and Web Service Description Models (WSDM) depict the interface information of composite service and partner services in the second level. With XCFG of BPEL process, XCFGs for partner services are generated to describe their behavior. Promela model is constructed by defining data types based on WSDM and defining channels, variables and processes based on XCFGs. The constructed Promela model is closed, containing not only the BPEL process but also its execution environment. Case study shows that the proposed approach is effective.

The problem of effective deployment architecture in SOA

2019 ◽  
Vol 0 (9/2019) ◽  
pp. 33-44
Author(s):  
Tadeusz Nowicki ◽  
Adrian Woźniak
Keyword(s):  
Business Process ◽  
Business Processes ◽  
Unique Feature ◽  
Service Oriented Architecture ◽  
Evaluation Criteria ◽  
Process Step ◽  
System Environment ◽  
Optimization Task ◽  
Service Oriented ◽  
Runtime Environments

Service Oriented Architecture is popular in many organizations. In particular, it has already deeply rooted in large corporations that need to automate entire business processes and implement them in many systems. It has a unique feature that allows unambiguously indicate service that is to realise business process step. That indication is possible to show directly in BPMN diagram. Thus, it is possible to trace which server has used resources to implement the service and how much of those resources were needed. Therefore, it is possible to build an optimization task that, with limited and unreliable resources, will determine such allocation of components to servers and such an algorithm for assigning tasks to them, so that the processes will work as well as possible. The article presents a model of such an optimization task. This model consists of four layers. The Organization Layer describes the system environment – the types and frequency of initiating business process instances. The Integration Layer describes the business processes and indicates the services that should be performed at every step. The Component Layer describes component characteristics and what services they provide. In Server Layer both: server characteristics and runtime environments necessary for the component to run are described. Finally, the optimization task and evaluation criteria are formulated.

A Novel Framework of Using Petri Net to Timed Service Business Process Modeling

2016 ◽  
Vol 26 (04) ◽  
pp. 633-652 ◽  
Author(s):  
Xiaoxian Yang ◽  
Tao Yu ◽  
Huahu Xu
Keyword(s):  
Business Process ◽  
Petri Net ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Functional Requirements ◽  
Service Model ◽  
Distributed Services ◽  
Service Business ◽  
Service Oriented ◽  
Time Requirements

In open and changeful Internet, the enterprise business process needs to be organized or restructured dynamically in order to adapt to environment changes and business logic updates. The solution of Web service and service-oriented architecture (SOA) provides a promising approach. The business processes working as a temporary workflow can be composed by distributed services. However, the cross-organizational service feature of business process requires considering not only the functional requirements but also the timed constraints. The timed property plays an important role in service interactions between business processes, such as timed activity, timeout and timed deadlock. Thus, if time requirements cannot be guaranteed, the new created business process will not be acceptable. In this paper, it proposes a framework of using Petri Net to model timed service business process. First, it defines the behavior model of service business process and gives process composition patterns for different structural forms. Second, service model is extended with time specifications, describing timed constraints among business activity interactions. Third, to support further verifications, it introduces a method for the automatic timed properties generation in the form of temporal logic formulae. Our framework gives a reference in practice to formalize service business process into timed service model.

Services Derivation from Business Process

2016 ◽  
Vol 7 (1) ◽  
pp. 59-74
Author(s):  
Mohamed El Amine Chergui ◽  
Sidi Mohamed Benslimane
Keyword(s):  
Business Process ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Critical Role ◽  
Optimal Designs ◽  
Design Metrics ◽  
Service Identification ◽  
Starting Point ◽  
Business Analysis ◽  
Service Oriented

Several approaches for services development in SOA (Service Oriented Architecture) suggest business processes as a starting point. However, there is a lack of systematic methods for services identification during business analysis. It is recognized that in service engineering, service identification plays a critical role as it lays the foundation for the later phases. Existing Service identification approaches are often prescriptive and mostly ignore automation principles, most are based on the architect's knowledge thus could result in non-optimal designs which results in complicated dependencies between services. In this paper the authors propose a top down approach to identify automatically services from business process by using several design metrics. This approach produces services from business processes as input and using an improved combinatorial particle swarm optimization algorithm with crossover of genetic algorithm. The experimentation denotes that the authors' approach achieves better results in terms of performance and convergence speed.

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