Design of HCI
Table of Contents Abstract 2 Introduction 2 Method 4 Design 5 Experimental Participants 5 Materials 6 Procedures 7 Results 14 Discussion 16 Conclusion 19 Bibliography 20 Abstract Over the last decade the multi-disciplinary approach of H.C.I. to interface design has seen major innovations in the technical design of graphical user interfaces. This raising of H.C.I. to a central player in software application and design, has allowed the user to issue commands by simply selecting from a number of display icons or buttons. As such, this methodological approach has lead to reduced learning, reduced keystroke time and structured interface decision-making. The following project will apply H.C.I. techniques to a VCR interface and evaluate this process through a number of H.C.I. guidelines. This approach will focus on keeping the user interface clean and simple, with the novice user being the targeted market. Finally, a hypothesis will be used to test the validity of the overall project. Introduction The technological advances in software development over the last two decades have seen a number of significant improvements in the technical design of graphic user interfaces. These developments have been accompanied by the rise of the discipline of Human Computer Interaction, which draws on a number of different analytical approaches. Writing on this phenomena Macaulay
3SFE518 Computer System Organisation - Piping
Coursework for: Computer System Organisation 3SFE518 Malshani Nanayakkara 2007020 CONTENTS Introduction - About the Piping 3 Program Listing 4 Screenshots 7 ABOUT THE PIPING In order to be able to communicate between two terminals, pipes have been used. As pipes are FIFO structure (First In First Out), it is well suited to be used for such an application. Two pipes are created, one used to define a communication channel from the server terminal to the client and the other to define a communication channel from the client terminal to the server terminal. Lets call these two pipes, np1 and np2, where np1 is the connection from the client to the server. In the program running on the server terminal, the pipe np1 is opened in the read only mode. Thereby, allowing it to read the information being sent by the client terminal. In the program running on the client terminal, the pipe np2 is opened in the read only mode so the information being written by the server can be read by the client. Whenever the information from the pipe is being read, it is temporarily stored in a buffer before being printed out on the screen. PROGRAM LISTING fullduplex.h //Reference: http://developers.sun.com/solaris/articles/named_pipes.html #define NP1 "/tmp/np1" #define NP2 "/tmp/np2" #define MAX_BUF_SIZE 255 server.c //Reference :
Investigating Seed Germination.
Investigating Seed Germination. Results Table of Results TEMP. (?c) PERCENTAGE GERMINATED GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 MEAN -10 0 0 0 0 0 0.0 4 8 4 2 6 0 8.0 22 80 00 74 86 00 88.0 30 60 74 8 96 94 81.0 40 0 6 0 0 2 5.6 CONTROL 0 0 0 0 0 0.0 NB. Numbers in bold italics are anomalous. They have not been included in the mean. ==> TEMP. (?c) MEAN PERCENTAGE GERMINATED -10 0.0 4 8.0 22 88.0 30 81.0 40 5.6 CONTROL 0.0 These results can now be used to perform statistical analysis and to plot a graph. Analysis To determine whether temperature has had an effect I shall use the Chi-Squared (?2) Test for Goodness of Fit. The Chi-Squared Test is used to determine whether the actual results of the experiment confirm the null hypothesis stated. For this investigation, the null hypothesis would be; 'temperature has no effect on the percentage of seeds that germinate' Whereas the alternative hypothesis would be; 'temperature does have an effect on the percentage of seeds that germinate' We will now determine whether the results fit the null hypothesis: The following results were obtained: -10?c 4?c 22?c 30?c 40?c % Germinated 0.0 8.0 88.0 81.0 5.6 By using these results we can determine the expected frequencies if the null hypothesis is correct: ==> Total percentage of seeds that germinate /
The purpose of this paper is to provide an analysis of Cisco Systems primary business strategies and its utilization of information technologies to achieve a competitive advantage in the network equipment industry.
Cisco Systems Networking the Internet Revolution Brandi Martin [email protected] Table of Contents Paper Objective Section 1: The Network Equipment Industry A. Industry Profile B. Competitive Strategies within the Industry C. Porter Model Evaluation of Industry Forces D. Globalization of the Industry E. Importance of Information Technology to the Industry Section II: Company Perspective: An Analysis of Cisco Systems A. Cisco Company Profile B. Market and Financial Performance C. The Competitive Strategy D. Significance of Information Technologies E. Strengths and Weaknesses of Cisco Section III: A. Strategic Option Generator B. Roles, Roles and Relationships C. Redefine/Define D. Significance of Telecommunications E. Success Factor Profile Section IV: A Final Analysis of the Success of Cisco Systems A. Success of Business Strategy and Information Technology Use to Date B. The Effective Position of Cisco for the Future Objective of Paper The purpose of this paper is to provide an analysis of Cisco System's primary business strategies and its utilization of information technologies to achieve a competitive advantage in the network equipment industry. The paper is divided into four sections, starting with a broad industry analysis, then narrowing to concentrate on Cisco Systems Inc., followed by an analysis of their use of information technology. The
IP network design
Network Design Purpose 4 .1 Scope 4 .2 Target Audience 5 .3 Strategic Issues 5 .4 Summary of Responsibilities 6 .5 National Education Network 8 .6 Interoperability and Standards 8 2 Network Design 9 2.1 Transmission Technologies 9 2.2 IP Addressing 15 2.3 Network Address Translation 17 2.4 Wide Area Network Topologies 18 2.5 Routed or Switched Backbone 19 2.6 Schools' Local Network Considerations 20 2.7 Separation of Administrative and Teaching Traffic 22 2.8 Network Security 22 3 Router Management 23 3.1 Edge Equipment 23 3.2 Router Security Policies 23 3.3 Firewall Features 23 3.4 Remote Management 24 3.5 Interface to the National Interconnect 24 4 Provision of Network Services 24 4.1 Domain Name System (DNS) 25 4.2 E-Mail 28 4.3 Web Services 29 4.4 External Access 30 4.5 Location of Network Services 31 4.6 Disaster Recovery 31 5 Support Services 32 5.1 Technical Support 32 5.2 Network Monitoring 33 5.3 Information Dissemination and Staff Development 34 6 Advanced and Emerging Technologies 35 6.1 IPv6 35 6.2 IP Multicast 35 6.3 IP Quality of Service (QoS) 36 7 References 37 Appendix A: Network Topology Discussion 39 Appendix B: Glossary 44 Purpose School networks are complex and serve a rapidly developing set of educational requirements, some of which challenge the technology and its security, implemented within limited budgets.
Case Analysis: Forecasting Food and Beverage Sales
CASE ANALYSIS: FORECASTING FOOD AND BEVERAGE SALES Suzanne Michelle Gager QNT 531: Advanced Problems in Statistics and Research Methods Terrance C. Feravich March 20, 2006 Case Analysis: Forecasting Food and Beverage Sales Problem Definition The Vintage Restaurant is on Captiva Island, a resort community near Fort Myers, Florida. The restaurant, which is owned and operated by Karen Payne, has just completed its third year of operation. During that time, Karen has sought to establish a reputation for the restaurant as a high-quality dining establishment that specializes in fresh seafood. The efforts of Karen and her staff have proven successful, and her restaurant has become one of the best and fastest-growing restaurants on the island. Karen has concluded that to plan for the growth of the restaurant in the future, she needs to develop a system that will enable her to forecast food and beverage sales by month for up to one year in advance. Karen has the following data ($1000s) on total food and beverage sales for the three years of operation. Lost Beverage and Food Sales Case Vintage Restaurant Sales MONTH First Year Second Year Third Year January 242 263 282 February 235 238 255 March 232 247 265 April 78 93 205 May 84 93 210 June 40 49 60 July 45 57 66 August 52 61 74 September 10 22 26 October 30 30 48 November 52
Interview and survey: an evaluation and contrast of these two approaches to data collection In this essay I shall be evaluating and contrasting the interview and survey approach to data collection
Interview and survey: an evaluation and contrast of these two approaches to data collection In this essay I shall be evaluating and contrasting the interview and survey approach to data collection. I shall describe each method and the circumstances in which they would be used, and look at the strengths and weakness of each method by referring to two examples of research where each method has been utilised. Interviews and surveys can take many forms and the research approach will often determine which type is used. Some researchers such as Fontana and Frey (1994) view a survey as just another form of interview, where interviews fall into three main categories; structured, semi-structured and unstructured, of which the structured is type is a survey interview. For the purpose of this essay, I shall be treating a structured interview as a survey and the semi and unstructured as interviews. A survey is where a pre-determined set of questions is asked with a range of possible answers. Although a survey is commonly paper based, requiring the recipient to fill in the answers without the need to discuss with an interviewer, they can also be used over the telephone and in a face-to-face situation. Surveys of this type are often used for market research purposes. When used in face-to-face or telephone situations, one of the advantages is that the person asking the
What are the more important pull factors bringing people to Wheatley - location of the property within the village/location of the village within the environment OR the specific facilities of the property.
Geography Coursework - What are the more important pull factors bringing people to Wheatley - location of the property within the village/location of the village within the environment OR the specific facilities of the property Author: Chris Edson School: Abingdon School Candidate Number: 5054 Total Word Length: Programme Used: Microsoft Word 2002 and Microsoft Word 2001 Hardware Used: Amd Athlon, Home Computer/Apple i-Mac, School Computer Contents . Introduction .1 Background 1.1.2 Wheatley in the past 1.1.3 Wheatley today 1.2 Aims .3 Objectives .4 Hypotheses .5 Theory 2. Methodology 2.1 Primary data 2.1.1 Questionnaire 2.1.2 Other primary data 2.1.3 Secondary data 2.2 Scope 2.3 Limitations 2.3.1 Operator error 2.3.2 Technical 3. Data Presentation 4. Interpretation & Evaluation 5. Conclusion References Oxfordshire records office Centre for Oxfordshire Studies, Westgate Library Wheatley Archive group Oxfordshire County Council Planning Dept Land and Records - Highways Dept Landscape and Environment Dept Wheatley Newsletters ( July/August 2003) Wheatley Information booklet (2000) Wheatley Society - Jim Watson Glynn, P (1988) Fieldwork - firsthand Geography Coursework information booklet Centenary of the Merry Bells, Wheatley, 1888-1988 . Introduction .1 Background I am doing my project on the village where I
Human Computer Interaction Project.
Human Computer Interaction Project Evaluation of Olympus C1400l Digital Camera Group Members: Lorna Brodbin 9838635 Jean Cronin 9838856 Gillian O'Sullivan 9840435 . Introduction "Every picture tells a story" An old saying that holds true. A picture can tell us more in an instant than a thousand words ever could. A picture records emotions, expressions, feelings and conveys them easily to the onlooker. Photographs capture hundreds of years of history be it on a world scale or at a personal level. We capture our weddings, births, birthdays and other occasions dear to us on camera because we want to hold on to that moment forever. Every time we look at a photograph we remember that day and relive that moment. The camera never lies. It takes a moment in time and freezes it. We rely on photographs as a tool to help us to understand and to remember the history of the world. Most of the worlds great historical events have been captured on film. A photograph of an innocent victim of war makes the victim real, like someone we knew rather than a name in a paper, and touches us far more deeply than stories in a book. Peoples descriptions of events are often tainted by exaggeration, imperfect memories and personal opinions but there is no denying the evidence of a photograph. The camera has come along way since the days of Niepcei. The first cameras were big and
Systems Modelling and Simulation - Prey predator model. The goal of this experiment is to model the population dynamics of animals both predator and prey when they are present in an environment.
Systems Modelling and Simulation Assignment No 2 Predator Prey Model By Vishal Vora (roll no 32) Submitted in partial fulfilment of the course requirement to Prof. Girja Sharan & Mr. Bhavesh Dharmani Predator Prey Model Goal: The goal of this experiment is to model the population dynamics of animals both predator and prey when they are present in an environment. Description: . Initially at time t=0, the population of prey is some value say x0 and that of predator is y0 2. Prey eats vegetarian food and predator eats prey 3. If there are no predators, the population of preys will grow exponentially over time and will be growing at the rate of the difference of the birth and death rate. 4. If there are predators, the population of prey will decrease to the extent they interact and the predator is successful in hunting the prey (Alpha) 5. The population of the predator is dependent on the growth rate of the predator due to prey availability (Beta) and the death rate of the predator. Assumptions: . The forest is large and the preys are born and die continuously. 2. There is no shortage of food. At time t, the prey population is x. After time t+?t, the prey population is given by : x+ no of prey born in time ?t- no of natural prey deaths in time ?t. The rate of growth during interval ?t is : (x +?x-x)/(t+?t-t) Taking lim ?x/?t= dx/dt. ?t-->0
