In this paper we describe a Python- and Tkinter-based visual-programming environment called ViPEr. This tool enables non-programmers to build computational and visualization networks interactively. Computational nodes can be placed onto a canvas and their input and output ports can be connected using the mouse. The connections between the nodes define a directed graph that will be used to propagate data and trigger the execution of nodes that have new input data. ViPEr is, in appearance, similar to programs such as AVS [Upson et al. 89] from Advanced Visual Simulations Inc, or OpenDX [DX 93] from IBM, but presents some fundamental differences which will be pointed out throughout this paper. Several examples of applications will be used to illustrate ViPEr’s design and current range of capabilities.
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Why do we write documentation? Silly question. Because we want others to be able to use our program, library function or whatever we have written and made available. But writing documentation is not all there is to it: Documentation must be accessible. If it’s hidden in some non?standard place where the documentation?related tools won’t find it ?? how can it serve its purpose?
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Setting Options, and customizing the Drawing toolbar.
Under Tools, Options (Alt-t o), set the following:
“View” tab: Print and Web Layout Options—check Drawings and Object Anchors
“General” tab: If you are using Office XP, UNcheck “Automatically create Drawing Canvas when inserting AutoShapes”
(The Drawing Canvas is a new feature in Word 2002, designed to make it easy to create a complex shape. I have yet to discover any value to it, and find it to be simply a nuisance.)
“Edit” tab: Check “Enable click and type”. This may be useful when you are working with a drawing, since it allows you to position text in relation to the drawing without hitting the Enter key repeatedly.
If you are using Word 2002, I recommend unchecking “Show Paste Option Buttons”. These buttons get in the way, and even sneak there way into my web documents!
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A Word About Secure Database Access
Unfortunately, this database access code exhibits insecurities of its own. For example, you should never use the sa account (or an equivalent) to access databases from Web applications. Instead, use weak accounts that lack permission to drop tables, insert, update, and delete records, and the like. In addition, you should use stored procedures or parameterized commands in lieu of dynamic SQL commands for added protection against malicious input parameters. Finally, consider encrypting database connection strings to minimize the risk of information disclosure if your source code falls into the wrong hands. And note that truly paranoid ASP.NET programmers encrypt connection strings and store them in ACLed registry keys. When it comes to Web security, a little paranoia can be a good thing.
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Information and communication technologies continue to pervade our lives in various aspects which include health, education, entertainment and ecommerce. People need to be able to trust computer systems as the dependence on them increases. The Trustworthy Computing vision (CRA, 2003) refers to computer systems that are intuitive, controllable, reliable and predictable and that ensure availability and security. Secure cod- ing is not trivial and poor code security management may leave the developed web application vulnerable to attack or turn the application into a launch pad for serious attacks.
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This short introduction to BibleWorks 7 is intended to highlight some basic information that will make your experience with BibleWorks much more fruitful and enjoyable.
1. What is BibleWorks?
BibleWorks is a software package containing biblical and extrabiblical texts and lexical and grammatical resources for biblical research and exegesis BibleWorks does not translate or exegete a passage for you but offers many tools and features that can assist you in the study of biblical texts.
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This chapter includes items that are items that are a part of the standard features of most Windows programs. So once you learn how to use them in Concord, you can use them in other Windows programs.
Starting Concord
If Concord is not already running, start it with the following steps:
1. Start Concord by double-clicking the Concord icon on the Windows desktop.
2. If the Select Books dialog box appears, click the checkbox next to Science and Health. Click OK
3. If the Select Book(s) dialog box does not appear, your copy of Concord has been set to automatically open some or all of the Concord books. From the Book menu, select Add or Remove Books. On the Select Book(s) dialog box, place a checkmark next to Science and Health. Remove checkmarks next to any other book. Click OK.
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GNS3 is a Graphical Network Simulator that allows emulation of complex networks. You may be familiar with VMWare or Virtual PC that are used to emulate various operating systems in a virtual environment. These programs allow you to run operating systems such as Windows XP Professional or Ubuntu Linux in a virtual environment on your computer. GNS3 allows the same type of emulation using Cisco Internetwork Operating Systems. It allows you to run a Cisco IOS in a virtual environment on your computer. GNS3 is a graphical front end to a product called Dynagen. Dynamips is the core program that allows IOS emulation. Dynagen runs on top of Dynamips to create a more user friendly, text-based environment. A user may create network topologies using simple Windows ini-type files with Dynagen running on top of Dynamips. GNS3 takes this a step further by providing a graphical environment.
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