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Search Publications by: Conrad Bock ()

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Displaying 26 - 50 of 60

New Capabilities for Interaction Modeling in BPMN 2.0

January 15, 2012
Author(s)
Conrad E. Bock, Stephen White
Interaction models capture how businesses interact with customers and each other to provide products and services. The trend toward combinations of products and services increases the complexity of interactions beyond the capacity of conventional business

A Semantic Product Modeling Framework and Its Application for Behavior Evaluation

January 9, 2012
Author(s)
Jae H. Lee, Steven J. Fenves, Conrad E. Bock, Sudarsan Rachuri, Hyo-Won Suh, Xenia Fiorentini, Ram D. Sriram
Supporting different stakeholder viewpoints across the product’s entire lifecycle requires semantic richness to represent product related information and thus enable multi-view engineering simulations. This paper proposes a multi-level product modeling

Ontological Behavior Modeling

May 20, 2011
Author(s)
Conrad E. Bock, James Odell
This article gives an example of improving the effectiveness of behavior modeling languages using ontological techniques. The techniques are applied to behaviors in the Unified Modeling Language (UML), using the logical meanings for classification

NIST Workshop on Ontology Evaluation (NISTIR 7774)

April 1, 2011
Author(s)
Ram D. Sriram, Conrad E. Bock, Fabian M. Neuhaus, Evan K. Wallace, Mary C. Brady, Mark Musen, Joanne Luciano
The National Institute for Standards and Technology sponsored a workshop in October, 2007, on the subject of ontology evaluation. An international group of invited experts met for two days to discuss problems in measuring ontology quality. The workshop

New Capabilities for Process and Interaction Modeling in BPMN 2

January 5, 2011
Author(s)
Stephen White, Conrad Bock
This paper provides a high-level introduction to new features in processes and interaction diagrams in the Business Process Model and Notation (BPMN) Version 2.0. BPMN 2.0 expands the capabilities of BPMN 1.x Process and Collaboration diagrams, and adds

Ontological Product Modeling for Collaborative Design

July 22, 2010
Author(s)
Conrad E. Bock, XuanFang Zha, Hyo-won Suh, Jae H. Lee
This paper shows how to combine ontological and model-based techniques in languages that facilitate collaborative design exploration. The proposed approach uses ontology to capture alternative designs and incremental refinements that meet requirements and

Product Modeling Framework and Language for Behavior Evaluation

May 2, 2010
Author(s)
Jae H. Lee, Steven J. Fenves, Conrad E. Bock, Hyo Won Suh, Sudarsan Rachuri, Xenia Fiorentini, Ram D. Sriram
Supporting different stakeholder viewpoints across the product s entire lifecycle requires semantic richness for representing product related information. This paper proposes a multi-layered product-modeling framework that enables stakeholders to define

A Semantic Product Modeling Framework and Language for Behavior Evaluation

April 8, 2010
Author(s)
Jae H. Lee, Hyo Won Suh, Steven J. Fenves, Sudarsan Rachuri, Xenia Fiorentini, Ram D. Sriram, Conrad E. Bock
Supporting different stakeholder viewpoints across the product's entire lifecycle requires semantic richness for representing product related information. This paper proposes a multi-layered product modeling framework that enables stakeholders to define

Ontological Product Modeling for Collaborative Design

October 30, 2009
Author(s)
Conrad E. Bock, XuanFang Zha, Hyo W. Suh, Jae H. Lee
This paper presents a product modeling language for collaborative design that has the benefits of ontology and expanded capabilities in conventional product modeling. The proposed approach uses ontology to increase flexibility and accuracy in combining

Reasoning in Manufacturing Part-Part Examples with OWL 2

October 29, 2008
Author(s)
Nenad Krdzavac, Conrad E. Bock
This report examines whether the Web Ontology Language 2 (OWL 2) is expressive enough for some common manufacturing examples involving relations between parts of composite or assembled objects (part-part relations). We specify the semantics of these

An Ontological Modeling Platform

June 4, 2008
Author(s)
V.C. Liang, Conrad E. Bock, XuanFang Zha
The Ontological Modeling Platform described in this paper is a class library for extended ontological operations, to support extension of ontology languages, composition of interconnected elements, and high-level product modeling services, such as

An Ontology for Assembly Representation

July 1, 2007
Author(s)
Xenia Fiorentini, Iacopo Gambino, V.C. Liang, Sebti Foufou, Sudarsan Rachuri, Mahesh Mani, Conrad E. Bock
Mechanical assemblies are systems composed of modules that are either subassemblies or parts. Traditionally an assembly information model contains information regarding parts, their relationships, and its form. But it is important that the model also

Interprocess Communication in the Process Specification Language

October 1, 2006
Author(s)
Conrad E. Bock
Interprocess communication is ubiquitous in modern computing, appearing most commonly as inputs, outputs, and messaging. This paper formalizes interprocess communication based on the involvement of entities in a process, and how processes determine which

Part-part Relations in an RDF/S and OWL Extension

September 1, 2006
Author(s)
Conrad E. Bock
This describes an extension to the Resource Description Framework/Schema (RDF/S) to specify relations between parts of the same whole (composite structure). For example, the relation between engine and wheels in a car applies in each individual car, rather

Evaluating Reasoning Systems

May 1, 2006
Author(s)
Conrad Bock, Michael Gruninger, Donald E. Libes, Joshua Lubell, Eswaran Subrahmanian
A review of the literature on evaluating reasoning systems reveals that it is a very broad area with wide variation in depth and breadth of research on metrics and tests. Consolidation is hampered by nonstandard terminology, differing methodologies

CPM: A Core Model for Product Data

October 1, 2005
Author(s)
Steven J. Fenves, Sebti Foufou, Conrad Bock, Ram D. Sriram
The support of PLM throughout the product life, from the product?s conceptualization to its disposal, requires reliable, complete and efficient data models. The Core Product Model (CPM), initially developed at NIST for a number of in-house research

Healthcare Strategic Focus Area: Clinical Informatics

September 1, 2005
Author(s)
Conrad Bock, Lisa Carnahan, Steven J. Fenves, Michael Gruninger, V Kashyap, Bettijoyce B. Lide, Jim G. Nell, Ravi S. Raman, Ram D. Sriram
NIST has conducted several workshops and other information gathering activities, that have identified several key strategic opportunities in healthcare information technology (HIT) for NIST: clinical informatics; bioinformatics; medical devices

Messaging in the Process Specification Language

September 1, 2005
Author(s)
Conrad Bock, Michael Gruninger
This paper characterizes messages by the constraints they place on participation of entities in processes. Constraints are expressed in two ways: informally as usage patterns of the Process Specification Language, and formally as extensions to it. The

SysML and UML 2 Support for Activity Modeling

June 1, 2005
Author(s)
Conrad E. Bock
This article describes activity modeling as specified by the Systems Modeling Language (SysML) and the finalization of the Unified Modeling Language version 2 (UML 2). It reviews and updates an earlier proposed alignment between Enhanced Functional Flow

PSL: A Semantic Domain for Flow Models

May 1, 2005
Author(s)
Conrad Bock, Michael Gruninger
Flow models underlie popular programming languages and many graphical behavior specification tools. However, their semantics is typically ambiguous, causing miscommunication between modelers and unexpected implementation results. This article introduces a

Systems Engineering in the Product Lifecycle

May 1, 2005
Author(s)
Conrad E. Bock
This article introduces basic elements of systems engineering that are useful in managing the product lifecycle, as expressed in an extension to the Unified Modeling Language. Models are described for product requirements in textual and computable form

UML 2 Activity and Action Models, Part 6: Structured Activities

April 1, 2005
Author(s)
Conrad E. Bock
This is the sixth in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how it integrates with the action model [1]. The first article gives an overview of activities and actions [2], while the next four cover

A Core Product Model for PLM with an Illustrative XML Implementation

March 1, 2005
Author(s)
Sebti Foufou, Steven J. Fenves, Conrad Bock, Sudarsan Rachuri, Ram D. Sriram
We propose a Core Product Model (CPM) for modeling product information suitable for supporting the information needs of Product Lifecycle Management (PLM) systems over the lifecycle of the product from the earliest ideation to manufacturing, operation and

Information Models for Product Representation: Core and Assembly Models

March 1, 2005
Author(s)
Sudarsan Rachuri, Mehmet M. Baysal, Utpal Roy, Sebti Foufou, Conrad Bock, Steven J. Fenves, Eswaran Subrahmanian, Kevin W. Lyons, Ram D. Sriram
This paper presents a revised and unified view of the NIST Core Product Model (CPM) [1; 2] and the NIST Open Assembly Model (OAM) [3]. The CPM provides a base-level product model that is not tied to any vendor software; open; non-proprietary; simple

CPM 2: A Revised Core Product Model for Representing Design Information

January 1, 2005
Author(s)
Steven J. Fenves, Sebti Foufou, Conrad Bock, Roger Bouillon, Ram D. Sriram
This report presents a revised version of the Core Product Model (CPM) initially reported in [1]. The objectives of the report are: (1) to document the changes in the CPM relative to the first version; (2) to describe in detail the revised CPM, represented