Experimenting with Linguistic Tools for Conceptual Modelling: Quality of the Models and Critical Features

2004 ◽  
pp. 135-146 ◽  
Author(s):  
Nadzeya Kiyavitskaya ◽  
Nicola Zeni ◽  
Luisa Mich ◽  
John Mylopoulos
Keyword(s):  
Conceptual Modelling

A Conceptual modelling of QOS’ Web Service Framework

2018 ◽  
Vol 7 (3.32) ◽  
pp. 132 ◽  
Author(s):  
Pattama Charoenporn ◽  
. .
Keyword(s):  
Quality Of Service ◽  
Web Service ◽  
Business Process ◽  
Practice Guideline ◽  
Business Practice ◽  
Class Diagram ◽  
Conceptual Modelling ◽  
New Paradigm ◽  
Service Framework

The evolution of web service technologies is well known in many organizations. When many organizations want to develop our business, they will add new services in their businesses policy, these additions may help the organization to increase some policy but it is difficult to implement some requirements. To solve this problem, we present the new paradigm of QOS for develop web service that is the procedure to implement web service and help developer to create service appropriate each business process. This conceptual of modelling based on LSS and BWW framework and under business practice guideline the example is Cobit and ITIL for approximate each of business process. In success, we illustrate our approach by class diagram that design under conceptual of modelling quality of service for web service and implement web service for test this idea. Then we choose 2 scenarios in different combination of QoS requirements for test, the results show that this technique is satisfy for choose and we think this paper can be guideline for researcher in the future.  

scholarly journals Multiple Conceptual Modelling of Perceived Quality of In-flight Airline Services

2017 ◽  
Vol 29 (3) ◽  
pp. 311-319 ◽  
Author(s):  
Urban Šebjan ◽  
Polona Tominc ◽  
Karin Širec
Keyword(s):  
Service Quality ◽  
Conceptual Model ◽  
Word Of Mouth ◽  
Perceived Quality ◽  
Conceptual Modelling ◽  
Relative Importance ◽  
Behavioural Intentions ◽  
Research Results ◽  
Seat Comfort

Despite growing literature on the different aspects of airline service quality in relation to behavioural intentions, less attention has been paid to some specific aspects of in-flight services. The focus of the present research is, therefore, on a multiple conceptual model of the quality of in-flight services in relation to passengers’ perception of value, followed by recommendations (word of mouth - WOM) of airlines, as well as the quality and comfort of airline seats. The study is performed using two databases of reviewers’/passengers’ opinions regarding the quality of in-flight airline services and airline seat comfort. Our research results reveal that the perceived comfort of the airplane seat is the most important factor of passengers’ perceived quality of in-flight airline services, which also considerably affects the passengers’ perception of value, and consequently moderates behavioural intentions (in our research, expressed through positive WOM). The analysis of the relative importance of the components of perceived airline seats’ comfort shows that seat width is the most significant factor that contributes to the overall perceived comfort of the airline seat.

Knowledge-Based Systems for Data Modelling

2017 ◽  
pp. 354-374 ◽  
Author(s):  
Sabrina Šuman ◽  
Alen Jakupović ◽  
Mile Pavlić
Keyword(s):  
Systems Development ◽  
Information Systems Development ◽  
Conceptual Modelling ◽  
Knowledge Based Systems ◽  
Data Modelling ◽  
Knowledge Based ◽  
Complex Process ◽  
Entity Relationship ◽  
Modelling Process

Data modelling is a complex process that depends on the knowledge and experience of the designers who carry it out. The lack of designers' expertise in that process negatively affects the quality of created models which has a significant impact on the quality of successive phases of information systems development. This chapter provides an overview of data modelling, especially the entity relationship method, main actors in the modelling process, and highlights the main problems and challenges in this field. Knowledge based system for data modelling support has a potential to minimize and prevent most of the problems that occur in modelling process. Therefore, a systematic review of the existing KB systems, methods, and tools for the data modelling process is made. By summarizing their main characteristics, some important desirable features of the new KB system for data modelling support are identified. With this in mind, a new KB system for data modelling support is proposed, which applies formal language theory (particularly translation) during the process of conceptual modelling.

Immunoferritin localization of intracellular antigens in positively stained frozen sections

1978 ◽  
Vol 36 (2) ◽  
pp. 168-169
Author(s):  
K. T. Tokuyasu
Keyword(s):  
Surface Tension ◽  
Water Surface ◽  
Thin Layers ◽  
The Other ◽  
Positive Staining ◽  
Frozen Sections ◽  
The Past ◽  
Ultrathin Frozen Sections ◽  
Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

Lithography below 100 nm

1983 ◽  
Vol 41 ◽  
pp. 96-99
Author(s):  
L. D. Jackel
Keyword(s):  
Spatial Distribution ◽  
Electron Beam ◽  
Electron Scattering ◽  
Electron Beam Lithography ◽  
Substrate Material ◽  
Local Electron ◽  
Electron Dose ◽  
Positive Resist ◽  
Exposure Process

Most production electron beam lithography systems can pattern minimum features a few tenths of a micron across. Linewidth in these systems is usually limited by the quality of the exposing beam and by electron scattering in the resist and substrate. By using a smaller spot along with exposure techniques that minimize scattering and its effects, laboratory e-beam lithography systems can now make features hundredths of a micron wide on standard substrate material. This talk will outline sane of these high- resolution e-beam lithography techniques.We first consider parameters of the exposure process that limit resolution in organic resists. For concreteness suppose that we have a “positive” resist in which exposing electrons break bonds in the resist molecules thus increasing the exposed resist's solubility in a developer. Ihe attainable resolution is obviously limited by the overall width of the exposing beam, but the spatial distribution of the beam intensity, the beam “profile” , also contributes to the resolution. Depending on the local electron dose, more or less resist bonds are broken resulting in slower or faster dissolution in the developer.

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