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网络营销/电子商务词典:网络广告/交互式广告/互联网广告媒体等相关英文词汇(D)

【说明】:下列词汇为网上营销新观察通过多个网站的相关资源整理汇总,并未一一核对词汇内容的准确性,对词汇的解释不代表本站的观点,仅供初步参考,如需要严格考证词汇的意义,请参考互联网相关的专业词典。

Daughter window
an ad that runs in a separate ad window associated with a concurrently displayed banner. In normal practice, the content and banner are rendered first and the daughter window appears thereafter.

Demographics
common characteristics used for population or audience segmentation, such as age, gender, household income, etc.

Digital signatures
signatures for electronic documents. They establish identity and therefore can be used to establish legal responsibility and the complete authenticity of whatever they are affixed to -- in effect, creating a tamper-proof seal.

Digital Video Server
a robust, dedicated computer at a central location that receives command requests from the television viewer through a video-on-demand application. Once it receives this request, it then instantly broadcasts specific digital video streams to that viewer.

Display
successful download giving the user an opportunity to see.

DHTML (Dynamic Hypertext Markup Language)
an extended set of HTML commands which are used by Web designers to create much greater animation and interactivity than HTML.

Domain name
the unique name that identifies an Internet site. Every domain name consists of one top or high-level and one or more lower-level designators. Top-level domains (TLDs) are either generic or geographic. Generic top-level domains include .com (commercial), .net (network), .edu (educational), .org (organizational, public or non-commercial), .gov (governmental), .mil (military); .biz (business), .info (informational),.name (personal), .pro (professional), .aero (air transport and civil aviation), .coop (business cooperatives such as credit unions) and .museum. Geographic domains designate countries of origin, such as .us (United States), .fr (France), .uk (United Kingdom), etc.

DPO (Distinct Point of Origin)
a unique address from which a browser connects to a Web site on the Internet.

Drill down
when an online user accesses more and more pages of the Web site, i.e., he or she goes deeper into the content of the site.

DSL (Digital Subscriber Line)
a high-speed dedicated digital circuit from a given location to the telephone company's central office, using normal copper telephone lines. DSL provides a separate channel for voice and fax, which means that phone calls and faxes can be carried at the same time high-speed data is flowing across the line. DSL is a general term that includes several variations: ADSL (Asymmetric Digital Subscriber Line), ranging up to 1.5 Mbps; HDSL (High-bit-rate Digital Subscriber Line), 1.5 Mbps; SDSL (Single-line Digital Subscriber Line), 1.5 Mbps; VDSL (Very high-data-rate Digital Subscriber Line), ranging up to 2.3 Mbps; and RDSL (Rate Adaptive Digital Subscriber Line), various speeds.

DVR (Digital Video Recorder)
a high capacity hard drive that is embedded in a set-top box, which records video programming from a television set. These DVRs are operated by personal video recording software, which enables the viewer to pause, fast forward, and manage all sorts of other functions and special applications.

Dynamic ad placement
the process by which an ad is inserted into a page in response to a user's request. Dynamic ad placement allows alteration of specific ads placed on a page based on any data available to the placement program. At its simplest, dynamic ad placement allows for multiple ads to be rotated through one or more spaces. In more sophisticated examples, the ad placement could be affected by demographic data or usage history for the current user.

Dynamic IP address
an IP address that changes every time a user logs on to the Internet.

Dynamic rotation
delivery of ads on a rotating, random basis so that users are exposed to different ads and ads are served in different pages of the site.

【说明】:上述词汇为网上营销新观察通过多个网站的相关资源整理汇总,并未一一核对词汇内容的准确性,对词汇的解释不代表本站的观点,仅供初步参考,如需要严格考证词汇的意义,请参考互联网相关的专业词典。

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