...[pic]University of Illinois at Chicago College of Business Administration Department of Information & Decision Sciences [pic] IDS 578 Research Methodology II Instructor Stanley L. Sclove [pic] The Sears, Roebuck Case These notes Copyright © 2005 Stanley Louis Sclove [pic] HyperTable of Contents 0. Introduction; Key Terms 1. What is Structural Equation Modeling? 2. A Simple Example of SEM 3. The Role of Theory in Structural Equation Modeling 4. Developing A Modeling Strategy 5. Estimating a Path Model with Structural Equation Modeling References [pic] 0. Introduction; Key Terms Preview In this course we consider Structural Equation Models. This note anticipates much material which will be discussed in more detail in the course or in the text (Schumacker and Lomax 2004). The note is based on a Harvard case, together with an example from Hair et al. and some introductory material. Key Terms The diagrams used in SEM are called path diagrams. The response variables are endogenous; the explanatory variables, exogenous. The modeling proceeds in terms of concepts, represented by constructs, measured by variables called indicators of the constructs. The model relating the indicators to the constructs is called the measurement model. The model relating the constructs to one another is called the structural model. [pic] 1. What is Structural Equation Modeling? Structural equation...
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...Graphical model From Wikipedia, the free encyclopedia A graphical model is a probabilistic model for which a graph denotes the conditional dependence structure between random variables. They are commonly used in probability theory, statistics—particularly Bayesian statistics—and machine learning. An example of a graphical model. Each arrow indicates a dependency. In this example: D depends on A, D depends on B, D depends on C, C depends on B, and C depends on D. Contents [hide] 1 Types of graphical models 1.1 Bayesian network 1.2 Markov random field 1.3 Other types 2 Applications 3 See also 4 Notes 5 References and further reading 5.1 Books and book chapters 5.2 Journal articles 5.3 Other Types of graphical models[edit] Generally, probabilistic graphical models use a graph-based representation as the foundation for encoding a complete distribution over a multi-dimensional space and a graph that is a compact or factorized representation of a set of independences that hold in the specific distribution. Two branches of graphical representations of distributions are commonly used, namely, Bayesian networks and Markov networks. Both families encompass the properties of factorization and independences, but they differ in the set of independences they can encode and the factorization of the distribution that they induce.[1] Bayesian network[edit] Main article: Bayesian network If the network structure of the model is a directed acyclic graph, the model represents...
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...be well versed in command line or they will be lost, it also makes it impossible to run any type of custom programming or third party apps. To sum it up, Server Core is safer, requires less maintenance, stable and requires much less resources but it’s harder to administer because of the lack of GUI and has no unessential services or applications. The Server Core option is not something that can be used in any situation, in fact it is best used for server’s that are dedicated to a single role that does not require and added applications or services. One example for when Server Core is applicable is for running a single server role such as a DNS server that requires no graphical user interface or extras to operate. The security benefits do indeed outweigh the inconvenience of having no graphical interface because you will typically be running Server Core on a server with a single role that is vital to the network, in which keeping it stable and running has a high priority. So sacrificing a bit of convenience to better protect these servers and maintain the job they perform. A virtual server is just as its name suggests a server that only exists in virtual space; it’s basically an operating system...
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...Android User Interface Development Beginner's Guide Quickly design and develop compelling user interfaces for your Android applications Jason Morris Android User Interface Development Beginner's Guide Copyright © 2011 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: February 2011 Production Reference: 1160211 Published by Packt Publishing Ltd. 32 Lincoln Road Olton Birmingham, B27 6PA, UK. ISBN 978-1-849514-48-4 www.packtpub.com Cover Image by Charwak A (charwak86@gmail.com) Credits Author Jason Morris Reviewers David J. Groom Martin Skans Acquisition Editor Chaitanya Apte Development...
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...their most used or needed applications without excess command line input or closing out the current program and losing their data. This increased speed and productivity as well as making operating the PC much easier and user friendly for the mostly untrained populace. With this new advent, those who shunned the computer because of the heavy command coding needed to work it now had the option to use the newest technology in a way they could easily grasp. Consumers however, were not the only ones who reaped a benefit from this advance, application developers also enjoyed increased ease of use. Programs that were very difficult to execute with command line (from an input coding standpoint) were now much easier to create and run with the graphical representation. Further, the GUI allowed for some things that could not be accomplished with command line (one example of this would be the ability to scroll...
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...SEC450 Security Demands Opnet iLab Objectives In this lab, the students will examine the following objectives. * The use of flow analysis to create required security demands * Creation of ACLs to meet the requirements of the security demands * Verification of security demands using web reports Scenario A small company is using the topology shown below. Minimal security measures have been implemented. Assume that the 200.100.0.0/16 network represents the Internet. The Dallas and Chicago Hosts need to be protected from specific types of traffic from the Internet. Topology The last page of the lab assignment document contains a full page topology. Remove this page and use it for reference to the topology and the IP addresses. Initial OpNet Preparation The Week 2 iLab is entitled Security Demands. The following steps show how to create the project required for the Week 2 iLab. * Log into the Citrix iLab Environment (lab.devry.edu). * Click on the OpNet 17 icon. * Click the Accept button to open OpNet 17. * Click File/Open and navigate to the F:\op_models\SEC450\SEC450.project\SEC450 file and click Open. * In OpNet 17 with the SEC450 project open, click File/Save As. * Save the project in the F:\op_models\SEC450 directory as SecurityDemands. You are now ready to begin the Security Demands iLab with a project called SecurityDemands. Initial Configuration The Dallas and Chicago Routers’ FastEthernet...
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...Creating a motion tween Step 1: Prepare the object to animate Important: Each object must be interpolated in a different layer and that object must be a symbol. If you do not have symbols in your library, this is a procedure: Step 2: Create the interpolation animation (motion tween) Then do one of the following: • Menu Insert> Motion Tween • Right-click (Windows) or Ctrl-click (Macintosh) on the object or the current "frame" and choose Create Motion Tween. [pic] In the following screenshot we used motion tween How to create fireworks; Step one prepare your brush tool and the draw a little dot in the center or anywhere in the picture [pic] Creating a classic tween [pic] Click anywhere on the stage and drag your mouse until you obtain an oval. You may use any color you like. [pic] Now, select Modify > Convert to Symbol (shortcut key: F8). This dialog box will appear: • In the Name field, enter green oval or any name you like. Choose names that will tell you what your movie clip is about and try to avoid using default names (Symbol 1, Symbol 2). Any name can seem good now, when you have just one movie clip. But once you have your library full of different symbols, intuitive symbol names can help you a lot. You will know instantly what any given symbol is about, and you’ll find them more quickly. Click OK. Creating a classic tween animation Write know my timeline looks like this: [pic] So go anywhere further...
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...Microsoft ® Desktop Optimization Pack for Software Assurance Case Study: Siemens Leading BPO targets savings of $1,400 per agent per year through application virtualization. The Challenge: Siemens Information Processing Services wanted to manage its PC fleet, along with the two main problems that the company had been facing—underutilization of desktops and high maintenance costs. The SoluTion: Company overview: SIPS implemented Microsoft® SoftGrid® Application Virtualization, a solution that delivers applications to desktops without installing the application. The ReSulTS: • • • • • $1,400 per agent per year in savings Hot desking facility Increased desktop utilization Improved security Business continuity and agility Challenges Siemens Information Processing Services (SIPS) was facing challenges in terms of underutilization of desktops and high maintenance costs. 1. Inefficient usage of desktop was resulting in high cost of operations. Desktops were not shared across processes because resources were already predefined to the processes. In case of high demand, desktops which otherwise are kept idle in that particular shift of operation cannot be used because the applications are not installed. This results in inefficiency of operation, inability to cope with sudden rise in demand and hence loss of money. 2. High level of attrition of the BPO Agents was increasing security risks due to manual/physical requirement of deleting applications and...
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...Unit 10 Final Project IT 320 Justin Burse An operating system is the main management system which is loaded after the boot loader has finished. Its responsible has many core responsibilities which allows all the programs to work together as one system. In the layer structure on the right you can see it is the link between the core hardware and the applications that use these pieces of hardware. How input and output devices link to the applications is controlled by this core program. Device Manager When a new device is made it has a program to control it, known as a “driver”. This driver is built to become a plug-in to the operating system, allowing the link to be built between the applications and that hardware device. If a device has not got a driver it cannot be used by the applications. Classes of devices however may use the same driver. An example of this is USB mass storage devices. All USB mass storage devices work using a Mass Storage Device Class which is transmitted as a signal when the device is connected. All these devices use the same protocol (A SCSI command set) and therefore can share a general driver. Although this is not a problem with this device, other devices which may have specialist functions or extra commands within their command set may not be able to use them, because the operating system has chosen a general driver Memory Management An example of a job fulfilled by an operating system...
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...from SkyGolf. This will allow them to be able to select the different options for the balls, color, number, and type in the required information for a custom imprint or adding a logo. JOptionPane can then also display in a window after all of the selections have been made and the customer can verify the information is correct. Then you can prompt the customer if everything is correct to enter a 1 or if it is incorrect then maybe select a 2 to route them back to the selection process. The scanner method can also be used to accomplish the same results except all of the information is shown line by line in a command window. I would use this method for the customer input but the JOptionPane has a better visual appearance for the user with graphical user interface (GUI). I have found that the Oracle website is a good source for finding predefined Java classes and methods. These can be found at the address http://docs.oracle.com/javase/6/docs/api/allclasses-noframe.html. It’s really unbelievable how of these are available. Also, just by using the program will give the experience using the predefined classes and methods to be able to build your own programmer defined methods. Well it seems there is going to be many choices for creating programmer defined methods for my class and case diagrams for...
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...Zenmap Specs * Supported Operating systems: Windows, Mac, Linux, BSD * Cost: Free * Requirements: Nmap Who’s it for? Zenmap is for any network or security administrator who needs to keep a constant check on their network topology. With it’s next-to-zero learning curve, just about any network administrator can have all of the information they need quickly. Zenmap will work for any size company or even a single-user consultancy, where a quick scan of a network topology can make the difference between spotting a security issue and finding a resolution or, well…not. What problem does it solve? There are two very key issues Zenmap solves. One is making the more-challenging Nmap scanner useable for the average administrator. Nmap is a console-only tool and the majority of administrators do not want to spend their day at the console (with a nod to the old-school Linux and UNIX admins who would much rather spend their day at the command line than in a GUI tool). Zenmap also gives the administrator a topology mapping tool where they can actually see an interactive, animated visualization of the hosts on your network. Key features * Free * Easy-to-use GUI * Quickly saves scans * Uses traceroute and ping * Saves profiles for frequent run tests * Topology mapping * Compares scan results of different scans * Runs multiple scans and views them as one big scan * Plenty of default scan profiles to choose from * Searches scan results...
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...updates in current system development trends. Figure 1. System Development Life Cycle (SDLC) Analysis The proponents had a session for them to analyze the applications that they will be using that can help in development of the actual system and the proponents analyzed the right and accurate design that will be using in making the system. After gathering information, the proponents focused on how they will come up with a good and useful system. Design and Development The proponents designed the system using Visual Basic 6.0 for the system interface because it is particularly easy to develop graphical user interfaces and to connect them to handler function provided by the application. The proponents used Adobe Photoshop CS4 for the...
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...business-related tasks. HCI concepts apply to everything from a PC desktop to the main menu for a global network. HCI includes all the communications and instructions necessary to enter input to the system and to obtain output in the form of screen displays or printed reports. 2. Explain the concept of a GUI and a switchboard. How does a GUI design differ from a character-based screen design? A GUI uses graphical objects and techniques. A well-designed GUI helps users learn and use a system effectively. Now that GUIs have become universal in application packages, users expect in-house software also to have GUIs. Unlike a character-based screen design, a GUI combines process control and data entry. A switchboard is an opening screen that introduces an application and allows users to view the main options. A switchboard contains command buttons that enable users to navigate the system and select tasks. 3. Describe seven principles for a user-centered interface design. Seven principles for a user-centered design are: · Understand the Business · Maximize Graphical Effectiveness · Think Like a User · Use Models and Prototypes · Focus on Usability · Invite Feedback · Document Everything 4. Describe six types of user interface controls, and provide an example of how you could use each type in a data entry screen. Controls can include menu bars, toolbars, dialog boxes, text boxes, toggle buttons, list boxes, scroll bars, drop-down list boxes...
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...Test Automation Criteria Benefit * How often do you believe the test should be run? * How many minutes are required for one tester to execute the test manually? * Will human intervention still be required to execute the test after automation? * Does the execution of the test require the tester to input a large amount of data (e.g. populating many fields or populating the same fields many times) via the gui interface? * Does the test require an inordinate amount of user interface actions (e.g. mouse clicks, validations)? * Will automating the test increase the productivity of the team? * Will automating the test allow us to increase test coverage? * Will automating the test allow us to increase the accuracy (exactness) and precision ( reproducibility or repeatability) of the test? * Is the execution of this test prerequisite to the execution of multiple other tests? Cost * How many hours of data preparation (e.g. querying data, setup within the application, etc.) is required for this test? * Is the test documented in such a way that someone other than the author can execute it, and is it stored in Quality Center? * What is the average number of times the test needs to be updated (e.g to reflect development changes) within a six month span? * Are the manual test steps currently up to date? * Are the systems and environments in which the test is run stable and consistently available? * Are third party systems involved...
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...lab 1.1 INSTALLING MICROSOFT WINDOWS SERVER 2008 |QUESTION 1 |WHAT DROP-DOWN BOXES ARE AVAILABLE ON THE INITIAL INSTALLATION SCREEN? | | |Language to Install, Time and Currency Format, and Keyboard or Input Method | |Question 2 |Why is the Upgrade option disabled? | | |There is no operating system currently installed on the computer. | |Question 3 |What network components are installed on your computer? | | |Client for Microsoft Networks, QoS Packet Scheduler, File and Printer Sharing for Microsoft | | |Networks, Internet Protocol Version 6 (TCP/IP v6), Internet Protocol Version 4 (TCP/IP v4), | | |Link-Layer Topology Discovery Mapper I/O Driver, and Link-Layer Topology Discovery Responder | 5. |Question 4 |What is the current name of your computer? | | |This answer will vary. The default value is “WIN-“ followed by a random string. | |Question 5 |What is the current name of your computer? | | |The name should now be W2K8yy. ...
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