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How to implement Web-based Groupware Systems based on WebDAVIn general, the World Wide Web has a high potential as a platform for distributed groupware systems. Authors create and change documents locally and upload them to a Web server, where they can be accessed by their collaborators. However, Web browsers and servers which implement the protocol HTTP are mostly limited to provide reading access to Web documents. For this reason, existing Web-based groupware systems (e.g. the BSCW system) are implemented using client/server side scripting. These scripts are used to implement the basic operations needed for this kind of applications.
The protocol WebDAV (World Wide Web Distributed Authoring and Versioning) which was developed as an extension of HTTP/1.1 by the WebDAV working group of the Internet Engineering Task Force (IETF) and defines new methods which offer additional services for editing and managing files on remote Web servers in a structured way (e.g. locking, version management, metadata management, etc.). When using WebDAV, the Web is becoming a rich infrastructure for collaborative applications, where the Web-DAV methods can be used to implement the basic operations needed (e.g. copy, delete, upload, assign metadata to documents, etc.). Scripting can be used in this context as well, but not for implementing the basic tasks of collaboration, but to simplify maintenance of the application.
The paper is structured as follows: In Section 2 we introduce the functionality of WebDAV. In Section 3, we briefly summarize related work in the area of implementing Web-based groupware systems and we give a short description of two systems, BSCW and DReSS. Furthermore,Code Centric: T-SQL Programming with Stored Procedures and TriggersThe brackets around objectowner indicate it is an optional argument. An object’s owner is determined at create-time, but it can be changed post-creation. The main goal of this section is to explain which owner is assigned when you omit this optional argument or when the object is created by a member of the fixed-server role sysadmin. The rules that dictate who the object owner is can be a little confusing until you understand fixed-server and fixed-database roles and the system-created user dbo.
The SQL Server fixed-server and fixed-database roles are somewhat analogous to the group concept used in NT to implement security. These roles are a part of SQL Server’s Security Model and allow you to more easily manage the actions users can perform. For example, a member of the fixed-server role sysadmin can perform any action within an instance of SQL Server, while a member of the fixed-database role db_owner can perform any action within a database. A member of the fixed-database role db_ddladmin can create, alter or delete all database objects within a database.
Each database in an instance of SQL Server has a special system-created user called dbo (database owner). The dbo user has implicit permission to perform any action in a database and cannot be deleted. When a member of sysadmin performs any action within a database, it is executed in the context of dbo. The dbo user is not explicitly associated with the fixed-database roles db_owner or db_ddladmin. When you create a database object with a loginManual for Unbound on WindowsThis manual aims to provide information about the Unbound server on the Windows platform. Included is installation, uninstallation and some information on configuration specific for Windows. Full details of operating a DNS resolver are not part of this document, and can better be documented in a platform independent document.
What is Unbound and what is DNSSEC
Unbound is a DNS resolver. It supports validation, caching, and DNSSEC. It supports NSEC and NSEC3, Ipv4 and Ipv6. Unbound is written for Unix (posix) machines, and runs on FreeBSD, OpenBSD, NetBSD and Linux (Fedora, Debian, Ubuntu, ...). This document is about the Windows version.
The service that unbound provides is that it performs DNS lookups, and can perform DNSSEC validation on the result. If the result is bad, it is not returned to the client (who sees a temporary error in name resolution). Applications that support DNSSEC can ask to see the verification result. DNSSEC is a standard for securing the information in the DNS. Your validator needs to have public keys to check the signatures on the data. DNSSEC is explained more fully on http://www.dnssec.net pages.
The unbound package for windows provides DNSSEC validation – the client that verifies the signatures published by authoritative DNS servers on the internet.
Download pdf Manual for Unbound on WindowsMaking 3d (2.5d) models of an object in 3ds maxOften a shape looks great on screen using max, but if you want to actually make it in 3d then it’s a bit tricky seeing as we don't have access to a rapid prototyping machine or a CNC mill, but we do have a laser cutter. So this explains how to turn a 3d studio model into a real thing made up of laminates of card, paper, ply, Perspex whatever you want. This tutorial assumes a basic knowledge of 3DS Max an AutoCAD.
It’s worth using the measure distance tool in the tools menu to see how big it is, then measuring your hand or foot or something so you actually have an idea about how big it's going to come out.
Once you are happy with an object that you have designed in max and want to actually see what it looks like then you need to make a decision about what you are going to make it out of. as the model is going to be made up of layers the thickness of the material will affect the curve resolution, there will be steps in one direction, so the thinner the layers the finer the curve resolution, but the more layers, so more work and more material.
As the layers are going to sit on top of each other they will need to have some sort of key or registering point to make sure they line up in the same place as they did on the computer model. the easiest wayWeb 2.0 tools and some things they could be used for: Community buildingTwitter http://twitter.com/ – won’t suit everyone but is very good for little snippets, observations and off the cuff chats that the web has not really replicated until now. Could be used to build communities and for lightweight communication between projects. A useful feature is the use of hash (#) tags, placing the # at the beginning of an event or project tag to aggregate comments.
Blogs – persuading projects to blog regularly is great for the programme manager, for a community of projects and for anyone interested in the project.
A Project Manager’s reflection on the issue of keeping a blog:
So is it worth it? Speaking personally and (for once) completely frankly, I’ve been quite enjoying writing, for several reasons. First, it has allowed me to do a bit of self-indulgent vanity publishing, something for which I criticise other bloggers but, hey, I’m a hypocrite! Second, the requirement to be reflective has made me think about various aspects of the project, which is no bad thing. Third, as it has turned out, I haven’t had to trouble my conscience by using buckets of whitewash to tell a positive story; the project really has been going pretty well.
Ning https://www.ning.com/ – easily build your own social network, a good place for people to get to know each other online communities can be closed or open and communication can be public or private. Ning is also a useful tool to run before a workshop for participants to start thinking, and during the workshop for gettingMicrosoft Access Tutorial pdfThe Basics Part 1. Start MS Access
From the Start menu click on
> Programs
> Microsoft Office
> Microsoft Office Access 2003
2. Note the Getting Started task pane on the right side of your screen.
3. Click on Create a new file.
4. The New File task pane will appear. Under Templates, click On my computer, to open the Templates window. Also notice the online templates.
5. Click on the Databases tab. Notice that there are templates for all types of databases. Double click on the Contact Management icon. The File New Database window will appear. Select
Download Microsoft Access Tutorial pdfMetaStock Professional User’s ManualFor Windows 98 and higher Version 8.0 When you need to make an investment decision, the last thing you want is to have your computer get in the way. Technology should help you reach a decision, not hinder you. Which is why MetaStock Professional is based on visual investing. Visual investing lets your eyes operate the software, freeing your mind to concentrate on more important matters–like your trades. Visual investing is made possible through object orientation. Simply put, “object orientation” means that the commands for objects are contained within the objects themselves. Rather than having to search a maze of menus and toolbars, you access commands directly from the objects.
To use MetaStock Professional, you only need to know two commands: • Right-click on everything. The object will display a menu of its commands. • Drag and drop everything. The on-screen animation of line studies and the fluid manner in which you can move indicators, prices, and inner windows greatly simplify the interface while helping you see investment opportunities. By mastering these two commands, you will be positioned to make better trades using MetaStock Professional’s extensive collection of analysis tools. Thank you for using MetaStock Professional.
Download pdf MetaStock Professional User’s ManualOntology Maturing: a Collaborative Web 2.0 Approach to Ontology EngineeringMost of the current methodologies for building ontologies rely on specialized knowledge engineers. This is in contrast to real-world settings, where the need for maintenance of domain specific ontologies emerges in the daily work of users. But in order to allow for participatory ontology engineering, we need to have a more realistic conceptual model of how ontologies develop in the real world. We introduce the ontology maturing processes which is based on the insight that ontology engineering is a collaborative informal learning process and for which we analyze characteristic evolution steps and triggers that have users engage in ontology engineering within their everyday work processes.
This model integrates tagging and folksonomies with formal ontologies and shows maturing pathways between them. As implementations of this model, we present two case studies and the corresponding tools. The first is about image-based ontology engineering (introducing so-called imagenotions), the second about ontology-enabled social bookmarking (SOBOLEO). Both of them are inspired by lightweight Web 2.0 approaches and allow for realtime collaboration.
Within state-of-the-art semantic approaches, ontologies have emerged as the key to enable more advanced technological support for end users and their work processes, which particularly applies to knowledge work. However, current research and development concentrates more on what we can do as soon as we have ontologies—rather than having a closer look at the processes of creating and especially maintaining such domain-specific ontologies. In real-world settings these issues are crucial to fulfill the users’ needs and currently insufficiently dealt with.
It is usually acknowledged that ontologies areAbout Microsoft .NETMicro FrameworkBuilt on the .NET foundation and optimized for use in small intelligent devices, .NET Micro Framework combines the reliability and efficiency offered by a .NET enabled managed code environment, the strength of the C# programming language, and the professional Microsoft Visual Studio 2005 tools. Sharing existing .NET code across multiple product lines and platforms results in a shortened development cycle and significantly improved productivity.
With its small memory footprint, specific focus on critical features, and Digi’s exclusive support for Ethernet network connectivity, .NET Micro Framework is the ideal choice for smaller network-connected devices utilizing Digi embedded modules in applications that do not rely on the advanced capabilities of a Real-Time Operating System (RTOS) or advanced operating system environments such as Microsoft Windows® Embedded CE or Linux®.
The Digi JumpStart Kit™ for Microsoft .NET Micro Framework provides an easy-to-use and complete solution for embedded development. The kit includes a Digi embedded module, development board with power supply, sample code and user documentation. The included Microsoft .NET Micro Framework SDK and the fully functional 90-day trial of Microsoft Visual Studio 2005 allows professional embedded C# development right out of the box.
Get pdf About Microsoft .NETMicro FrameworkAutoCAD 2008 Second Level: 3D Modeling Tutorial3D Surface Modeling Although all three commands can be used to create planar surfaces, the resulting surfaces are not equal. In fact, the three commands are developed for specific tasks in mind. The 2D Solid command is mostly used in 2D drawings to create 2D filled area and the Region command is designed so that general 2D shapes can be easily transformed into solid models. The 3D Face command is the only one that is designed specifically for surface modeling and therefore it is the most suitable for such tasks. The use of the 2D Solid and Region commands in 3D surface modeling can be somewhat awkward and at times very difficult. Note that the use of the Region command will be focused on in the solid modeling chapters of this text.
As one can imagine, sketching each surface manually can be very time consuming and tedious. AutoCAD also provides additional tools for more advanced surface modeling, such as Tabulated surfaces, Ruled surfaces and Revolved surfaces. These tools are basically automated procedures, which can be used to define and create multiple copies of planar surfaces in specific directions. The principles and concepts used by these tools are also used in creating solid models, which are covered in chapter six through chapter eight of this text. You are encouraged to re-examine these commands after you have finished the solid modeling chapters. In this chapter, the general procedures to create surface models are illustrated. The use of the 2D Solid and 3D Face
