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69
Value Based Requirements Engineering: Exploring Innovative e-Commerce Ideas
- REQUIREMENTS ENGINEERING JOURNAL
, 2002
"... Innovative e-commerce ideas are characterized by commercial products yet unknown to the market, enabled by information technology such as the Internet and technologies on top of it. How to develop such products is hardly known. We propose a interdisciplinary approach, e -value , to explore an ..."
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Cited by 99 (35 self)
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Innovative e-commerce ideas are characterized by commercial products yet unknown to the market, enabled by information technology such as the Internet and technologies on top of it. How to develop such products is hardly known. We propose a interdisciplinary approach, e -value , to explore an innovative e-commerce idea with the aim to understand such an idea thoroughly and to evaluate it for potential profitability. Our methodology exploits a requirements engineering's way of working, but employs concepts and terminology from business science, marketing and axiology. It shows how to model business requirements and improve business-IT alignment, in sophisticated multi-actor value constellations that are common in electronic commerce. In addition to the e -value approach methodology, we also present the action research-based development of our methodology, by using one of the longitudinal projects we carried out in the field of online news article provisioning.
On the General Ontological Foundations of Conceptual Models
- in Conceptual Modeling - ER 2002, 21st International Conference on Conceptual Modeling, LNCS 2505
"... Abstract. As pointed out in the pioneering work of [WSW99,EW01], an upper level ontology allows to evaluate the ontological correctness of a conceptual model and to develop guidelines how the constructs of a conceptual modeling language should be used. In this paper we adopt the General Ontological ..."
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Cited by 48 (15 self)
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Abstract. As pointed out in the pioneering work of [WSW99,EW01], an upper level ontology allows to evaluate the ontological correctness of a conceptual model and to develop guidelines how the constructs of a conceptual modeling language should be used. In this paper we adopt the General Ontological Language (GOL), proposed in [DHHS01], for this purpose. We discuss a number of issues that arise when applying the concepts of GOL to UML class diagrams as a conceptual modeling language. We also compare our ontological analysis of some parts of the UML with the one proposed in [EW01].
Emancipating Instances from the Tyranny of Classes in Information Modeling
- ACM Transactions on Database Systems
, 2000
"... Database design commonly assumes, explicitly or implicitly, that instances must belong to classes. This can be termed the assumption of inherent classification. We argue that the extent and complexity of problems in schema integration, schema evolution, and interoperability are, to a large extent, c ..."
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Cited by 40 (1 self)
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Database design commonly assumes, explicitly or implicitly, that instances must belong to classes. This can be termed the assumption of inherent classification. We argue that the extent and complexity of problems in schema integration, schema evolution, and interoperability are, to a large extent, consequences of inherent classification. Furthermore, we make the case that the assumption of inherent classification violates philosophical and cognitive guidelines on classification and is, therefore, inappropriate in view of the role of data modeling in representing knowledge about application domains. As an alternative, we propose a layered appro...
A Semantic Approach to XML-based Data Integration
- In Proc. ER’01
, 2001
"... Abstract. The paper describes a prototype tool, named DIXSE, which supports the integration of XML Document Type Definitions (DTDs) into a common conceptual schema. The mapping from each individual DTD into the common schema is used to automatically generate wrappers for XML documents, which conform ..."
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Cited by 37 (1 self)
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Abstract. The paper describes a prototype tool, named DIXSE, which supports the integration of XML Document Type Definitions (DTDs) into a common conceptual schema. The mapping from each individual DTD into the common schema is used to automatically generate wrappers for XML documents, which conform to a given DTD. These wrappers are used to populate the common conceptual schema thereby achieving data integration for XML documents. 1
Modelling Off-the-Shelf Information Systems Requirements: An Ontological Approach
- REQUIREMENTS ENGINEERING
, 2001
"... Requirements for choosing off-the-shelf information systems (OISR) differ from requirements for development of new information systems in that they do not necessarily provide complete specifications, thus allowing flexibility in matching an existing IS to the stated needs. We present a framework for ..."
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Cited by 29 (6 self)
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Requirements for choosing off-the-shelf information systems (OISR) differ from requirements for development of new information systems in that they do not necessarily provide complete specifications, thus allowing flexibility in matching an existing IS to the stated needs. We present a framework for OISR conceptual models that consists of four essential elements: business processes, business rules, information objects and required system services. We formalise the definitions of these concepts based on an ontological model. The ontology-based OISR model provides a framework to evaluate modelling languages on how appropriate they are for OISR requirements specifications. The evaluation framework is applied to the Object-Process Methodology, and its results are compared with a similar evaluation of ARIS. This comparison demonstrates the effectiveness of the ontological framework for evaluating modelling tools on how well they can guide selection, implementation and integration of purchased software packages.
P.: Situational Maturity Models as Instrumental Artifacts for Organizational Design
- In: DESRIST 2009
, 2009
"... In order to identify and explore the strength and weaknesses of particular organizational designs, a wide range of maturity models have been developed by both, practitioners and academics over the past years. However, a systematization and generalization of the procedure on how to design maturity mo ..."
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Cited by 21 (0 self)
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In order to identify and explore the strength and weaknesses of particular organizational designs, a wide range of maturity models have been developed by both, practitioners and academics over the past years. However, a systematization and generalization of the procedure on how to design maturity models as well as a synthesis of design science research with the rather behavioural field of organization theory is still lacking. Trying to combine the best of both fields, a first design proposition of a situational maturity model is presented in this paper. The proposed maturity model design is illustrated with the help of an instantiation for the healthcare domain.
An Extended Entity-Relationship Model for Geographic Applications
- SIGMOD Record
, 1997
"... . A special-purpose extension of the EntityRelationship model for the needs of conceptual modeling of geographic applications, called the Geo-ER Model, is presented. Handling properties associated to objects not because of the objects' nature but because of the objects' position, calls for ..."
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Cited by 21 (0 self)
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. A special-purpose extension of the EntityRelationship model for the needs of conceptual modeling of geographic applications, called the Geo-ER Model, is presented. Handling properties associated to objects not because of the objects' nature but because of the objects' position, calls for dealing-at the semantic modeling levelwith space, location and dimensionality of objects, spatial relationships, space-depending attributes, and scale and generalization of representations. In order to accomplish this in the framework of ER and its derivatives, we introduce special entity sets, relationships, and add new constructs. The rationale as well as examples of usage of the Geo-ER model from actual projects are presented. 1. Introduction Is everybody special or are we all alike? Should we develop applications according to a special methodology for each class of applications, such as medical, business process and geographic, or should we use a single blanket approach for all? Personal prefer...
Goal Modeling in Requirements Engineering: Analysis and Critique
- OF CURRENT METHODS, INFORMATION MODELING METHODS AND METHODOLOGIES
, 2004
"... In the field of Requirements Engineering, goal modelling approaches have received much attention in recent years by researchers and practitioners alike. This chapter identifies the uses of these approaches in different contexts of requirements analysis phases. It examines goal modelling in terms of ..."
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Cited by 14 (0 self)
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In the field of Requirements Engineering, goal modelling approaches have received much attention in recent years by researchers and practitioners alike. This chapter identifies the uses of these approaches in different contexts of requirements analysis phases. It examines goal modelling in terms of five methodological orientations and defines a framework for their analysis. Using this framework it provides an analysis of goal modelling approaches in a systematic and consistent manner. The aim of this analysis is to understand the best fit for purpose of different goal modelling approaches and to highlight open issues that provide a foundation for further research in this important area of Requirements Engineering methodology.
A design methodology for modeling trustworthy value webs
- International Journal of Electronic Commerce
, 2005
"... ABSTRACT: In this paper we introduce a design methodology for business models from two perspectives: the value web perspective and the trust perspective. The value web perspective models the creation, distribution, and consumption of goods or services of economic value in a network of multiple enter ..."
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Cited by 10 (4 self)
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ABSTRACT: In this paper we introduce a design methodology for business models from two perspectives: the value web perspective and the trust perspective. The value web perspective models the creation, distribution, and consumption of goods or services of economic value in a network of multiple enterprises and end-consumers. The goal of the methodology is to create a shared understanding of a business model for all actors involved, and to assess the potential profitability. The trust perspective describes how value webs can be expanded with trustworthy control procedures thus enhancing confidence of actors in each other to enable trading. We present a first outline of a formal theory to design trustworthy control procedures in the setting of the e 3 value methodology. KEY WORDS AND PHRASES: network organisations, business models, design methodology, trust, control.
An Aggregation Model and its C++ Implementation
- Proc. of the 4th Int. Conf. on Object-Oriented Information Systems, OOIS’97
, 1997
"... Object-oriented conceptual models strive to capture more semantics in order to better represent requirements of real-world applications. Aggregation is a powerful construct for semantic modeling. Intuitively, it relates a composite object to its component objects. This paper presents a new versio ..."
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Cited by 10 (4 self)
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Object-oriented conceptual models strive to capture more semantics in order to better represent requirements of real-world applications. Aggregation is a powerful construct for semantic modeling. Intuitively, it relates a composite object to its component objects. This paper presents a new version of aggregation, with a generalized version of cardinality constraints and a new subcategorization of part relationships, with an associated transitivity rule. An implementation in C++ is also presented.
