The worldwide scope of an electronic commerce offer must rely on a set of physical and logical solutions to meet users’ expectations. Not all customers are computer wizards, and the architecture must account for ergonomic factors, in addition to the security of the exchanges and the different methods for accessing the telecommunications network. This section […]
The arguments in favor of the Internet sound, at a decade interval, like an echo of those that were previously formulated in praise of the Minitel. This passion for information technology is displayed in a context where ambitious growth rates are not physically sustainable, due to market saturation in rich countries, the progressive depletion of […]
JEPI (Joint Electronic Payment Initiative) is a joint initiative of the W3C and the CommerceNet consortium. The purpose is to allow a server to negotiate, with a client, the payment protocol advantageous to both parties. Membership of the JEPI project includes several suppliers of solutions for secure payments (Cybercash, GCTech), software (Microsof, IBM, OpenMarket), services […]
The proliferation of incompatible payment systems creates difficulties for all concerned — users, service suppliers, financial institutions, and regulatory bodies. History has shown repeatedly that the expansion of commerce requires a stable and uniform environment. Yet, in a single aspect of electronic commerce such as electronic purses, there are more than 20 commercialized schemes in […]
The automation and dematerialization of monetary exchanges are not objectives per se, but are solely means to improve the productivity of financial institutions. In this regard, an overabundance of standards, and sometimes their competition, may constitute a barrier to the establishment of electronic commerce. Even if some manufacturers think they can profit from this situation, […]
ecommerce, hosting, domain registration, electronics, digital, appliance
In this section we will build a very basic front end that makes a connection to our database, validates a user’s login, and retrieves (searches for) data. Although this is just a start, it will provide the building blocks you need to develop it further for your own needs.
This unlike the others, is more like […]
It gives me a chance to rave about some of the cool new functionality in SQL Server 2000. Plus, I can show you some of the things that are not totally relevant to our application but that you definitely will want to know as you continue developing and maintaining SQL Server.
Although the enhancements to the […]
User-defined functions (UDFs) rock! UDFs allow us to create compliant units of Transact-SQL that can return either a scalar value or a table.
A scalar value returns a single value (as our UDF did) of the type we specify in the CREATE FUNCTION statement.
A table returns a table of results. It leverages the new data type […]
As you move into a multi-user environment, security, user, and resource management will become key to the performance and integrity of your application. Some of these security features are available on Windows 2000 only.
Understanding Kerberos and Security Delegation
Unfortunately, we cannot take advantage of these new enhancements. We are not running Windows 2000—maybe that’s a good […]
The instance name must follow some rules, and these are listed here. These rules are from the SQL Server Setup Help provided with the CD for installation.
An instance name is not case sensitive.
An instance name cannot be the terms Default or MSSQLServer.
Instance names are limited to 16 characters.
The first character in the instance name must […]
Server, web hosting, domain, fonts, template, php
Design-Software, web-hosting, photo, fonts, language-software
One of the main concerns of network administrators in the 1980s was that any person in the company network could easily install a modem in her computer and connect to computers outside the network. For digital telephone systems, this was not a problem. But for small businesses using an analog telephone system, this could present […]
Other Bluetooth Profiles
Bluetooth 1.x and 2.0 specifications provide for several others. More profiles are expected to be added if the technology is accepted by the marketplace as a solution for short-distance cable replacement. Many of the following profiles are still in draft format and are not yet considered to be standards that all Bluetooth vendors […]
mobile, cell-phone-accessories, wallpaper, ringtones
mobile device, cell phone accessories, ringtones, wallpaper
IP addresses are divided into three major classes (A, B, and C) and two less familiar ones (D and E). Each class uses a different portion of the IP address bits to identify the network. There is a need for classifying networks because there is a need to be able to create networks of different […]
TCP/IP was built using a layered approach. You may have heard about the OSI (Open Systems Interconnect or Open Systems Interconnection) Reference model that is used mostly as a framework around which a discussion of network protocols can be discussed. Developed in 1984 by the International Organization for Standardization (ISO), this model defines a protocol […]
Sometimes, different network segments both use the same network ID and are connected by a router or another device. Because ARP uses broadcast packets to resolve IP addresses to hardware addresses, it would appear that computers on different network segments that use the same network ID would never be able to communicate.
Proxy ARP allows for […]