Design and Evaluation of Usable Systems

2002 ◽  
Vol 46 (3) ◽  
pp. 367-371
Author(s):  
John F. McGrew
Keyword(s):  
Genetic Algorithm ◽  
Change Management ◽  
Management System ◽  
Design Method ◽  
The Other ◽  
Design Team ◽  
Style Analysis ◽  
Decision Style ◽  
Parallel Design

This paper discusses a case study of a design and evaluation of a change management system at a large Telecommunications Corporation. The design and evaluation were done using the facilitated genetic algorithm (a parallel design method) and user decision style analysis. During the facilitated genetic algorithm the design team followed the procedure of the genetic algorithm. Usability was evaluated by applying user decision style analysis to the designed system. The design is compared with an existing system and with one designed by an analyst. The change management system designed by the facilitated genetic algorithm took less time to design and decision style analysis indicated it would be easier to use than the other two systems.

scholarly journals Finocyl Grain Design Using the Genetic Algorithm in Combination with Adaptive Basis Function Construction

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Saeed Mesgari ◽  
Mehrdad Bazazzadeh ◽  
Alireza Mostofizadeh
Keyword(s):  
Genetic Algorithm ◽  
Level Set Method ◽  
Level Set ◽  
Computer Aided Design ◽  
Optimization Design ◽  
Design Method ◽  
Burning Surface ◽  
Aided Design ◽  
Function Construction

This study deals with the application of optimization in Finocyl grain design with ballistic objective functions using a genetic algorithm. The classical sampling method is used for space filling; a level-set method is used for simulating the evaluation of a burning surface of the propellant grain. An algorithm is developed beside the level-set code that prepares the initial grain configuration using a computer-aided design (CAD) to export generated models to the level-set code. The lumped method is used to perform internal ballistic analysis. A meta-model is used to surrogate the level-set method in an optimization design loop. Finally, a case study is done to verify the proposed algorithm. Observed results show that the grain design method reduced the design time significantly, and this algorithm can be used in designing any grain type.

The origins of severe software defects method

2020 ◽  
Vol 2 (2) ◽  
pp. 23-30
Author(s):  
Nico Hillah
Keyword(s):  
Management System ◽  
School Management ◽  
The Other ◽  
Software Defects ◽  
Financial Cost

Identifying the causes which may potentially generate high financial damage was the goal of our research. To reach this goal, we conducted a case study on a system in the field of education. We studied the software defects of this system over several months and classified them based on two classification concepts: the EVOLIS and their severity. These defects prevent any essential operation or activity to be conducted through the concerned system or other systems connected to it. In fact, the occurrence of these failures causes a double financial cost to organizations: one in fixing them and the other one because of the unavailability of the system or systems. We targeted three types of software defects as sources of these failures. We conducted this study by classifying 665 software defects of a school management system and we found that the top two trigger groups are the technology and the IS architecture groups. This result led us to propose a method to identify the origins of severe software defects.

scholarly journals An Evolutionary and Visual Framework for Clustering of DNA Microarray Data

2013 ◽  
Vol 10 (3) ◽  
pp. 51-65
Author(s):  
José A. Castellanos-Garzón ◽  
Fernando Díaz
Keyword(s):  
Genetic Algorithm ◽  
Cluster Analysis ◽  
Dna Microarray ◽  
Microarray Data ◽  
The Other ◽  
Visualization Tool ◽  
Data Set ◽  
Dna Microarray Data ◽  
Cluster Visualization

Summary This paper presents a case study to show the competence of our evolutionary and visual framework for cluster analysis of DNA microarray data. The proposed framework joins a genetic algorithm for hierarchical clustering with a set of visual components of cluster tasks given by a tool. The cluster visualization tool allows us to display different views of clustering results as a means of cluster visual validation. The results of the genetic algorithm for clustering have shown that it can find better solutions than the other methods for the selected data set. Thus, this shows the reliability of the proposed framework.

Seismic Evaluation of Retrofitted Factory with Rubber Bearing and Design Method

2013 ◽  
Vol 671-674 ◽  
pp. 1435-1440
Author(s):  
Bin He ◽  
Jin Lai Pang ◽  
Cheng Qing Liu
Keyword(s):  
Design Method ◽  
Design Procedure ◽  
The Other ◽  
Engineering Practice ◽  
Seismic Evaluation ◽  
Direct Construction ◽  
Existing Building ◽  
Rubber Bearing ◽  
Retrofit Design

For particular change of function, factories are sometimes to be retrofitted into specific buildings with insertion of additional floors. Conventionally, there are two methods in retrofit of factories when additional floor is needed. One is the reconstruction of a secondary structure inside the existing building, while the other is the so called direct construction of additional floor. The latter is preferred on particular occasions due to the simplification of procedure. However, strengthening is still required in this case for the loads induced by extra floor may impose an adverse effect on existing strucutre. In this study, the rubber isolation is introduced into retrofit of factories. Based on case study, its effect in isolating earthquake is evaluated, and relative discussion is also made with energy balance concept. The design procedure of retrofit design of factories with additional floors is discussed in this study, which may provide instruction in applying this technology into engineering practice.

scholarly journals Change Management System (CMS) Evaluation: A Case Study in a Multinational Manufacturing Company in Malaysia

2020 ◽  
Author(s):  
S. Sarifah Radiah Shariff ◽  
K. N. M. Nasir Nasir ◽  
Noor Asiah Ramli ◽  
Siti Meriam Zahari
Keyword(s):  
Monte Carlo Simulation ◽  
Change Management ◽  
Cycle Time ◽  
Change Process ◽  
Management System ◽  
Effectiveness Measure ◽  
Manufacturing Company ◽  
External Forces ◽  
A Company

Changes can be defined as modification of the form, fit or function of an object such as a process or a product. Changes can be positive or negative but in general, making changes show that a company is progressing and improving. A company can choose to take initiative to change or just wait for external forces depending on its necessity or requirement. In some cases, change is not favourable unless it is really necessary as it involves time and money as well as other resources. Due to this, a good change management is necessary so that changes can be monitored effectively. A dynamic and timely change management is important in order to ensure that the company does not fall behind in being competitive in the industry. This study focuses on the evaluation of the change management system in a manufacturing company. Focus is given to the measurement of the change process which has been agreed to be due to cycle time in which an ideal cycle time for the change process is simulated. Based on Monte Carlo simulation, it is figured that the overall cycle time can be improved by 35%. At the same time, other effectiveness measure is also identified to improve the management system of the company.

DESIGNING CUSTOMIZED AND TAILORABLE VISUAL INTERACTIVE SYSTEMS

2008 ◽  
Vol 18 (03) ◽  
pp. 305-325 ◽  
Author(s):  
MARIA FRANCESCA COSTABILE ◽  
DANIELA FOGLI ◽  
ANDREA MARCANTE ◽  
PIERO MUSSIO ◽  
LOREDANA PARASILITI PROVENZA ◽  
...  
Keyword(s):  
Mechanical Engineering ◽  
Design Method ◽  
Participatory Approach ◽  
End Users ◽  
Interactive Systems ◽  
The Other ◽  
Design Team ◽  
Domain Experts ◽  
Software Engineers

This paper presents a novel participatory approach to the design of customized and tailorable visual interactive systems; it includes end users as domain experts in the design team. A design method is described which leads to two different visual specifications, one suitable for end users and the other suitable for software engineers. It is also shown how this second specification is directly mapped to the implementation architecture, based on XML technology. The discussion is supported by the description of an example in the mechanical engineering domain.

scholarly journals A Case Study of Nanofiltration Using an Irreversible Thermodynamics-Based Model

2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
G. R. Vakili-Nezhaad ◽  
Z. Akbari
Keyword(s):  
Genetic Algorithm ◽  
Irreversible Thermodynamics ◽  
The Other ◽  
Real Solution ◽  
Mineral Salts ◽  
Existing Data

The extended Spiegler-Kedem model that can be solved by using genetic algorithm (GA) has been used for study of the rejection of charged and uncharged solutes in a nanofiltration process. In this work, the accuracy and applicability of this model were tested with the data obtained from the nanofiltration of a real solution. The permeated solution was obtained from the whey ultrafiltration system (ultrafiltered whey). The studied process separates lactose and mineral salts from ultrafiltered whey. Moreover, the ultrafiltered whey nanofiltration system has been simulated with higher precision compared to the other sources of existing data.

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