Re-sequencing of Design Processes With Activity Stochastic Time and Cost: An Optimization-Simulation Approach

2005 ◽  
Vol 129 (2) ◽  
pp. 150-157 ◽  
Author(s):  
Hisham M. E. Abdelsalam ◽  
Han P. Bao
Keyword(s):  
New Product Development ◽  
Design Process ◽  
Life Cycle Cost ◽  
Robust Solution ◽  
Early Introduction ◽  
Design Project ◽  
Design Structure ◽  
Optimization Simulation ◽  
Stochastic Time ◽  
Optimum Sequence

Background. By the mid-1990s, the importance of the early introduction of new products to both market share and profitability became fully understood. Thus, reducing product time-to-market became an essential requirement for continuous competition. Coupled with the fact that about 70% of the life cycle cost of a product is committed at early design phases, the motivation for developing and implementing more effective methodologies for managing the design process of new product development projects became very strong. Method of Approach. One tool that helps in understanding and analyzing such a project is the design structure matrix (DSM). This paper presents a framework that obtains an optimum sequence of project activities—presented by the DSM—that minimizes total time and cost given stochastic activity estimated time and cost. The framework interfaces a meta-heuristic optimization algorithm called simulated annealing with a commercial risk analysis software. Results. The proposed framework was applied to a design project and the results have shown a robust solution minimum was reached. Conclusions. Since much of the time and cost involved in the design process is attributable to its expensive iterative nature. The framework presented in this paper improves a design project via obtaining an optimum sequence of its activities that minimizes total time and cost.

Application of Microsoft Agent in Humanized Courseware

2013 ◽  
Vol 671-674 ◽  
pp. 3239-3242
Author(s):  
Yao Fei Chen ◽  
Wei Zheng ◽  
Huan Tong Chen
Keyword(s):  
Human Computer Interaction ◽  
Design Process ◽  
Significant Influence ◽  
Agent Technology ◽  
Design Structure ◽  
Presentation Effect ◽  
Computer Interaction

Traditional courseware is lack of humanity. Proposes to use Agent technology achieve the humanized design in courseware. Microsoft Agent with its lively and clear human features has had a significant influence upon traditional human-computer interaction. This paper introduces the related technologies of Microsoft Agent, and discussed the realization of the principles and the design process of the Microsoft Agent in authorware . The paper gives the Agent script design structure, the human feedback of humanized courseware and the notes in the process. Microsoft Agent enhanced the expression and presentation effect of courseware by lively images of anthropomorphic expression, speech and action.

Development of a DSM-Based Methodology in an Academic Setting

2012 ◽  
Vol 134 (2) ◽  
Author(s):  
George Platanitis ◽  
Remon Pop-Iliev ◽  
Ahmad Barari
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Engineering Students ◽  
Design Structure ◽  
Academic Settings ◽  
Task Durations ◽  
Random Disturbances ◽  
Process Convergence ◽  
Work Transformation

This paper proposes the use of a design structure matrix/work transformation matrix (DSM/WTM)-based methodology in academic settings to serve engineering educators as a facilitating tool for predetermining the difficulty and feasibility of design engineering projects they assign, given both the time constraints of the academic term and the expected skill level of the respective learners. By using a third-year engineering design project as a case study, engineering students actively participated in this comprehensive use of DSM methodologies. The engineering design process has been thoroughly analyzed to determine convergence characteristics based on the eigenvalues of the system followed by a sensitivity analysis on the originally determined DSM based on data provided by students in terms of task durations and number of iterations for each task. Finally, an investigation of the design process convergence due to unexpected events or random disturbances has been conducted. The obtained predictive model of the design process was compared to the actual dynamics of the project as experienced by the students and the effect of random disturbances at any point in the design process has thereby been evaluated.

scholarly journals Proses Desain Kursi dengan Memanfaatkan Modul Silinder dari Bonggol Jagung

2020 ◽  
pp. 1-10
Author(s):  
Priskila Saptorini ◽  
Andry Masri
Keyword(s):  
Design Process ◽  
Research Method ◽  
Professional Work ◽  
Strong Unit ◽  
Design Project ◽  
Corn Cobs ◽  
Compromise Value ◽  
The Right ◽  
Chair Design

One of the results of the exploration of corncobs is a cylindrical module. In this research, the cylindrical module will be used as a component in the chair, so that the search for the right technique and appropriate design will be made so that it can become a strong unit to be used as a chair. So, the purpose of this design process is to produce an appropriate chair design and in accordance with the techniques in utilizing cylindrical corncobs module, to get a compromise value from the novelty with module assembly techniques that must be able to function properly. The role of research for Design Project 5 and Professional Work is to find and test the material of corn cobs woven with rope as a component of a chair's seat base. The research method used was an experiment. The results showed a novelty and obtained a product made from corncobs in the form of a cylinder that can function well as a chair component.

scholarly journals Providing a Uniform Design Experience in an Undergraduate Mechanical Engineering Program

2021 ◽  
Author(s):  
Filippo A. Salustri ◽  
W. Patrick Neumann
Keyword(s):  
Design Process ◽  
Mechanical Engineering ◽  
Uniform Design ◽  
Design Engineering ◽  
Specific Design ◽  
Design Work ◽  
Design Project ◽  
Engineering Program ◽  
Design Projects ◽  
Design Experience

The design experience of 3rd year undergraduates in Mechanical Engineering at Ryerson University, and the assessment of student design work, was found to be disjointed and highly variable across the program. To attempt to address this, the authors are constructing courseware to help instructors of non-design engineering courses embed rich and consistent design projects into their courses. A “lightweight” Fast-Design process was developed. Course-specific design project examples of the process are being developed for five 3rd year courses using this design process. Current versions of all courseware are freely available. This paper details the nature of the courseware and how it was designed, developed,and deployed for the project. To date, one case has been deployed, two developed, and two more are under development. While results are so far only anecdotal, there is reason to believe that our approach can noticeably improve the design experience of students in non-design engineering courses.

Providing a uniform design experience in an undergraduate Mechanical Engineering Program

2021 ◽  
Author(s):  
Filippo A. Salustri ◽  
W. Patrick Neumann
Keyword(s):  
Design Process ◽  
Mechanical Engineering ◽  
Uniform Design ◽  
Design Engineering ◽  
Specific Design ◽  
Design Work ◽  
Design Project ◽  
Engineering Program ◽  
Design Projects ◽  
Design Experience

The design experience of 3rd year undergraduates in Mechanical Engineering at Ryerson University, and the assessment of student design work, was found to be disjointed and highly variable across the program. To attempt to address this, the authors are constructing courseware to help instructors of non-design engineering courses embed rich and consistent design projects into their courses. A “lightweight” Fast-Design process was developed. Course - specific design project examples of the process are being developed for five 3rd year courses using this design process. Current versions of all courseware are freely available. This paper details the nature of the courseware and how it was designed, developed, and deployed for the project. To date, one case has been deployed, two developed, and two more are under development. While results are so far only anecdotal, there is reason to believe that our approach can noticeably improve the design experience of students in non-design engineering courses.

A Structured Design Methodology and Metadesigner: A System Shell Concept for Computer Aided Creative Design

1989 ◽  
Author(s):  
C. R. Liu ◽  
J. C. Trappey
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Design Space ◽  
Structured Design ◽  
Programming Paradigm ◽  
Knowledge Based ◽  
Design Structure ◽  
Hierarchical Nature ◽  
Design Options ◽  
Human Designer

Abstract This paper discusses the concept of managing the design process using Objected Oriented Programming Paradigm. A software system shell, called MetaDesigner is being developed for aiding the human designer to create new designs, based on the hierarchical nature of the design space. This system shell is intended to have the following capabilities: (1) interactive and system-guided design process to analyze design structure and to characterize design options, (2) to provide interactive and system-guided knowledge acquisition, classification, and retrieval to achieve machine learning, and (3) to build a flexible and forever expandable structure for knowledge-based system implementation.

Optimal Ordering of Activities of New Product Development Projects with Time and Cost Considerations

2013 ◽  
pp. 546-563
Author(s):  
Hisham M. Abdelsalam ◽  
Amany Magdy
Keyword(s):  
New Product Development ◽  
Optimal Order ◽  
Development Projects ◽  
Objective Functions ◽  
Design Structure ◽  
Model Project ◽  
Project Data ◽  
Pareto Fronts ◽  
Optimal Ordering ◽  
Execution Order

This chapter presents a Discrete Multi-objective Particle Swarm Optimization (MOPSO) algorithm that determines the optimal order of activities execution within a design project that minimizes project total iterative time and cost. Numerical Design Structure Matrix (DSM) was used to model project activities’ execution order along with their interactions providing a base for calculating the objective functions. Algorithm performance was tested on a hypothetical project data and results showed its ability to reach Pareto fronts on different sets of objective functions.

Discovering a Hierarchical Design Process Model Using Text Mining

2016 ◽  
Author(s):  
Lijun Lan ◽  
Ying Liu ◽  
Wen Feng Lu
Keyword(s):  
Text Mining ◽  
Design Process ◽  
Process Model ◽  
Entity Recognition ◽  
Coarse Grained ◽  
Design Information ◽  
Design Project ◽  
Design Process Model ◽  
Process Oriented ◽  
Design Documents

The increasing design documents created in the design process provide a useful source of process-oriented design information. Hence, the need for automated design information extraction using advanced text mining techniques is increasing. However, most of the existing text mining approaches have problems in mining design information in depth, which results in low efficiency in applying the discovered information to improve the design project. With the aim of extracting process-oriented design information from design documents in depth, this paper proposes a layered text mining approach that produces a hierarchical process model which captures the process behavior at the different level of details. Our approach consists of several interrelated algorithms, namely, a content-based document clustering algorithm, a hybrid named entity recognition (NER) algorithm and a frequency-based entity relationship detection method, which have been integrated into a system architecture for extracting design information from coarse-grained views to fine-grained specifications. To evaluate the performance of the proposed algorithms, experiments were conducted on an email archive that was collected from a real-life design project. The results showed an increase in the detection accuracy for the process-oriented information detection.

Early Design Modeling and Simulation of Behaviors: Case Study of Mobile Work Machine

2009 ◽  
Author(s):  
William Brace ◽  
Eric Coatane´a ◽  
Heikki Kauranne ◽  
Matti Heiska
Keyword(s):  
Design Process ◽  
Simulation Models ◽  
Integrated Approach ◽  
Simulation Framework ◽  
Early Design ◽  
Early Evaluation ◽  
Design Structure ◽  
Qualitative Physics ◽  
Early Design Phase

The early evaluation of a proposed function structure for a product and also, the possibility to expose the potential failures related to this provides that the design process can be modeled in its entirety. However, so far there are no existed suitable models for the early phase of design process. This article presents an integrated approach aimed to explore the behaviors of concept designs in the early design phase. The approach is founded on a combination of Petri net, π-numbers, qualitative physics principles and Design Structure Matrix. The final aim is to implement this method on the SysML modeling language to integrate a simulation approach that is initially not standardized in the language. A second interest of the approach is to provide a coherent simulation framework that can be used as a reference to verify the coherency of other simulation models further in the design process.

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