Refactoring Process Models in Large Process Repositories.

With the increasing adoption of process-aware information systems (PAIS), large process model repositories have emerged. Over time respective models have to be re-aligned to the real-world business processes through customization or adaptation. This bears the risk that model redundancies are introduced and complexity is increased. If no continuous investment is made in keeping models simple, changes are becoming increasingly costly and error-prone. Though refactoring techniques are widely used in software engineering to address related problems, this does not yet constitute state-of-the art in business process management. Process designers either have to refactor process models by hand or cannot apply respective techniques at all. This paper proposes a set of behaviour-preserving techniques for refactoring large process repositories. This enables process designers to eectively deal with model complexity by making process models better understandable and easier to maintain

Towards Consistency Management for a Business-Driven Development of SOA

The usage of the Service Oriented Architecture (SOA) along with the Business Process Management has emerged as a valuable solution for the complex (business process driven) system engineering. With a Model Driven Engineering where the business process models drive the supporting service component architectures, less effort is gone into the Business/IT alignment during the initial development activities, and the IT developers can rapidly proceed with the SOA implementation. However, the difference between the design principles of the emerging domainspecific languages imposes serious challenges in the following re-design phases. Moreover, enabling evolutions on the business process models while keeping them synchronized with the underlying software architecture models is of high relevance to the key elements of any Business Driven Development (BDD). Given a business process update, this paper introduces an incremental model transformation approach that propagates this update to the related service component configurations. It, therefore, supports the change propagation among heterogenous domainspecific languages, e.g., the BPMN and the SCA. As a major contribution, our approach makes model transformation more tractable to reconfigure system architecture without disrupting its structural consistency. We propose a synchronizer that provides the BPMN-to-SCA model synchronization with the help of the conditional graph rewriting

Keeping the Cost of Process Change Low through Refactoring

With the increasing adoption of process-aware information systems (PAIS) large process model repositories have emerged. Over time respective models have to be re-aligned to the real world business processes through customization or adaptation. This bears the risk that model redundancies are introduced and complexity is increased. If no continuous investment is made in keeping models simple, changes are becoming increasingly costly and error-prone. Although refactoring techniques are widely used in software engineering to address related problems, this does not yet constitute state-of-the art in business process management. Consequently, process designers either have to refactor process models by hand or can not apply respective techniques at all. In this paper we propose a set of techniques for refactoring large process repositories, which are behaviour-preserving. The proposed refactorings enable process designers to effectively deal with model complexity by making process models easier to change, less error-prone and better understandable

Towards a scope management of non-functional requirements in requirements engineering

Getting business stakeholders’ goals formulated clearly and project scope defined realistically increases the chance of success for any application development process. As a consequence, stakeholders at early project stages acquire as much as possible knowledge about the requirements, their risk estimates and their prioritization. Current industrial practice suggests that in most software projects this scope assessment is performed on the user’s functional requirements (FRs), while the non-functional requirements (NFRs) remain, by and large, ignored. However, the increasing software complexity and competition in the software industry has highlighted the need to consider NFRs as an integral part of software modeling and development. This paper contributes towards harmonizing the need to build the functional behavior of a system with the need to model the associated NFRs while maintaining a scope management for NFRs. The paper presents a systematic and precisely defined model towards an early integration of NFRs within the requirements engineering (RE). Early experiences with the model indicate its ability to facilitate the process of acquiring the knowledge on the priority and risk of NFRs

Navigating The Leading Edge: A Prototype Curriculum for Software Systems Management

This article presents a meaningful and advantageous new direction for information technology education, embodying principles for systematically optimizing the functioning of the business. Our curriculum was built on the thesis that every aspect of software systems management can be understood and described as a component of four universal, highly correlated behaviors: abstraction, product creation, product verification and validation, and process optimization. Given this, our model curriculum was structured to provide the maximum exposure to current best practice in six thematic areas, which taken together as an integrated set, makes-up the attributes that differentiate us from the other computer disciplines: Abstraction: understanding and description of the problem space Design: models for framing artifact to meet criteria 3, 4, 5, and 6 Process Engineering: application of large models such as IEEE 12207 Organizational Control Systems: SQA and configuration management Evaluation with Measurement: with an emphasis on testing and metrics Construction: professional programming languages with emphasis on reusability Our teaching strategy approaches this as a hierarchy of similar activities. In every course we require the student to define and implement all three interfaces and be able to clearly communicate this as a logically consistent model before working out the details of the solution. The focus of all understanding is top-down from the information interface. Our curriculum centers on the application of software engineering standards (such as those promulgated by IEEE) and the software process improvement, or quality standards (such as those promulgated by SEI and ISO) under the assumption that this embodies the common body of knowledge and state of best practice in software production and management. The practical realization of this is an integration of the large subject areas of: software engineering (methods, models and criteria), process and product quality management (software quality assurance and metrics), software project management (work decomposition, planning, sizing and estimating), and software configuration management. Reconciliation of project and configuration management is accomplished by cross-referencing the problems, tools, notations and solutions (through explicit identification, authorization and validation procedures). As a side agenda, we have also stressed the need for re-engineering the vast number of software products currently on the shelves. This model plus germane simulated real-world experience introduces all of the relevant principles to the student within the (currently understood) framework. It allows them to develop and internalize their own comprehensive understanding and formulate a personal model of the disciplinary body of knowledge

Automation of procedure writing for the RLWTF

In August of 1997, the Radioactive Liquid Waste Treatment Facility (RLWTF) at Los Alamos National Laboratory (LANL) recognized the need to re-engineer document management business process. All nuclear facilities at LANL are required to ensure that both the latest approved revision of controlled documents and any changes to those documents are available to operating personnel at all times. The Nuclear Materials Technology (NMT) Division was also re-engineering its document management business processes and searching for a solution. Both groups contacted several internal and external organizations in search of potential software solutions in use that would meet requirements. This report describes the objectives and features required by the software package, the choice of Procedure Design as the software package, and its implementation

Negotiating Response-ability and Repeat-ability in Requirements Engineering

Requirements engineering (RE) practices are critical to success during the development of business software. As managers assess RE practices, they apply specific perspectives that determine problems identified and recommendations for improvement. Two perspectives have recently dominated managerial thinking within the software industry, one rooted in software process improvement and the other rooted in agile software development. Underpinning these perspectives are two theories about what constitutes good software practice. In this paper, we explicate these theories in relation to RE and show how they differ in basic assumptions about the nature of requirements, requirements capture, requirements usage, change management, and approach to improvement. The repeat-ability theory holds that good requirements practices are plan-driven and follow generic best practices to arrive at an agreed-upon baseline of software requirements. Response-ability holds that good requirements practices are adaptive and involve close interaction between customers and developers to arrive at satisfactory software solutions. We use case study data from a software firm, TelSoft, to show how the theories lead to different interpretations about why current practices are problematic and how problems are resolved. Relating to the improvement strategy adopted at TelSoft, we demonstrate the superiority, for managers, of negotiating response-ability and repeat-ability concerns when improving RE practices. The paper concludes with a discussion of implications for research and practice

Proximal business intelligence on the semantic web

This is the post-print version of this article. The official version can be accessed from the link below - Copyright @ 2010 Springer.Ubiquitous information systems (UBIS) extend current Information System thinking to explicitly differentiate technology between devices and software components with relation to people and process. Adapting business data and management information to support specific user actions in context is an ongoing topic of research. Approaches typically focus on providing mechanisms to improve specific information access and transcoding but not on how the information can be accessed in a mobile, dynamic and ad-hoc manner. Although web ontology has been used to facilitate the loading of data warehouses, less research has been carried out on ontology based mobile reporting. This paper explores how business data can be modeled and accessed using the web ontology language and then re-used to provide the invisibility of pervasive access; uncovering more effective architectural models for adaptive information system strategies of this type. This exploratory work is guided in part by a vision of business intelligence that is highly distributed, mobile and fluid, adapting to sensory understanding of the underlying environment in which it operates. A proof-of concept mobile and ambient data access architecture is developed in order to further test the viability of such an approach. The paper concludes with an ontology engineering framework for systems of this type – named UBIS-ONTO

Towards Consistency Management for a Business-Driven Development of SOA

International audienceThe usage of the Service Oriented Architecture (SOA) along with the Business Process Management has emerged as a valuable solution for the complex (business process driven) system engineering. With a Model Driven Engineering where the business process models drive the supporting service component architectures, less effort is gone into the Business/IT alignment during the initial development activities, and the IT developers can rapidly proceed with the SOA implementation. However, the difference between the design principles of the emerging domain-specific languages imposes serious challenges in the following re-design phases. Moreover, enabling evolutions on the business process models while keeping them synchronized with the underlying software architecture models is of high relevance to the key elements of any Business Driven Development (BDD). Given a business process update, this paper introduces an incremental model transformation approach that propagates this update to the related service component configurations. It, therefore, supports the change propagation among heterogenous domain-specific languages, e.g., the BPMN and the SCA. As a major contribution, our approach makes model transformation more tractable to reconfigure system architecture without disrupting its structural consistency. We propose a synchronizer that provides the BPMN-to-SCA model synchronization with the help of the conditional graph rewriting