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  Virtualization is an approach to IT that pools and shares(1)so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human(2)are aligned around an application or business function. With a virtualized(3), people, processes, and technology are focused on meeting service levels,(4)is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization(5)that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.

  The Rational Unified Process (RUP) is a software engineering process, which captures many of best practices in modern software development. The notions of(1)and scenarios have been proven to be an excellent way to capture function requirements. RUP can be described in two dimensions-time and content. In the time dimension, the software lifecycle is broken into cycles. Each cycle is divided into four consecutive(2)which is concluded with a well-defined(3)and can be further broken down into(4)-a complete development loop resulting in a release of an executable product,a subset of the final product under development, which grows mcrementally to become the final system. The content structure refers to the disciplines, which group(5)logically by nature.

  A typical(1)language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to "spaceless" values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the(2). In this setting, values are data structures of low volume, typically afew computer words or less, which means that an illusion of "spacelessness" can be realized by having(3)results during expression evolution stored at the discretion of the language implementation, and effecting parameter(4)and(5)operations through value copying.

  Traditional structured analysis techniques focus upon the flow of(1)within a system. Object-oriented analysis emphasizes the building of real-world models. It examines requirements from the perspective of the classes and objects found in the vocabulary of the(2)domain.

  Traditional system design method emphasizes the proper and effectrve structure of a complex system. Object-oriented design method encompasses the process of object-oriented decomposition and a(3)for depicting both logical and physical as well as static and dynamic models of the system under design.

  Object-oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an(4)of some class, and whose classes are all members of a hierarchy of classes united via(5)relationships.

  Certificates are(1)documents attesting to the(2)of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to(3)someone else. In their simplest form, Certificates contain a public key and a name. As commonly used,a certificate also contains an(4)date, the name of the CA that issued the certificate,a serial number, and perhaps other information. Most importantly, it contains the digital(5)of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.

  WebSQL is a SQL-like(1)language for extracting information from the web. Its capabilities for performing navigation of web(2)make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a(3), all the pages that can be reached from a given URL through(4)that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common(5)Interface.

  Originally introduced by Netscape Conununications,(1)are a general mechanism which HTTP Server side applications, such as CGI(2), can be used to both store and retrieve information on the HTTP(3)side of the connection. Basically, Cookies can be used to compensate for the(4)nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities ofWWW-based(5)．

  SOCKS is a generic proxy protocol for ICP/IP-based networking, applications. SOCKS includes two(1), the SOCKS server and the SOCKS client. The SOCKS server is implemented at the application layer. The SOCKS client is implemented between applications and the(2)layer. When an application client needs to connect to an application server, the client connects to a SOCKS proxy server. The proxy server connects to the application server instead of the client, and(3)data between the client and the application server. For the application server, the proxy server is the(4). SOCKS is also one of the popular(5)to network firewalls. Because of its simplicity and flexibility, SOCKS has been used as generic application proxy in virtual private network (VPN), and for extranet applications.

  Most computer systems are(1)to two different groups of attacks: Insider attacks and outsider attacks. A system that is known to be(2)to an outsider attack by preventing(3)from outside can still be vulnerable to the insider attacks accomplished by abusive usage of(4)users. Detecting such abusive usage as well as attacks by outsides not only provides information on damage assessment, but also helps to prevent future attacks. These attacks are usually(5)by tools referred to as Intrusion Detection Systems.

  DOM is a platform-and language(1)API that allows programs and scripts to dynamically access and update the content, structure and style of WWW documents (currently, definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incoporporated back into the presented(2). DOM is a(3)-based API to documents, which requires the whole document to be represented in(4)while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large(5)documents that do not fit into the memory available for processing.