In any modern Airport or Railway station, passengers have been informed of departure and arrival times by digital screens showing specific content. This is known as Digital Signage. In recent years, technological advances in computer software and audio visual hardware have brought this concept to the high street, corporations, public bodies and into industry replacing traditional methods of providing information. The advantages of Digital Signage include the ability to update content seamlessly and to deliver the right message to the right people at the right time. Software based Digital Signage have almost rendered video distribution systems redundant by being more flexible and more cost effective.

A screen network should reflect the viewer’s needs at any given moment in order to add value to the broadcast, and provide a return on the investment. Put simply, Content is King!!

Digital Signage allows access to specific demographic ranges and creates the opportunity to tailor your company proposition to suit those demographics. Such content doesn’t necessarily include information on the company. In certain circumstances, e.g. a busy supermarket, the display of traffic reports, weather reports and currency rates shown along side company information can all add value to a Digital Screen Broadcast.

PWG Screen Media provide a consultative approach to Digital Signage. We aim to break a mindset concerned with limitations, and unravel what each client needs explicitly. In essence we can show any information on a screen network by tailoring our content delivery system.

Glossary Of Terms

Ad Channels - TV channels dedicated to running advertisements. Ad channels are semi-automated great sources of revenue. Ad channel applications include... Real Estate Channels, Cable Personals, Cable Classifieds, Cars Channels.

Advertising Displays - Any location-based display that carries advertising. Some Digital Signage solutions specialise in remotely updateable signage, but advertising displays can be anything, including... End Caps, ATM Toppers, Posters, Billboards, Point-of-purchase displays (pop displays), Cardboard displays.

Air - An option that helps keep underlined text legible. An outline that is the colour of the background ("air"), is applied to the letters of underlined text. When the color of the text and the underline is the same, the air keeps the text and underline from blending together.

Alert - A status message that is sent to report an error or some other unexpected condition. See also heartbeat.

Alignment - The position of an element, or the lines in a multi-line text element, in relationship to left and/or right margins.

Animation - A sequence of frames that, when played in order at sufficient speed, presents a smoothly moving image like a film or video. An animation can be digitized video, computer-generated graphics, or a combination.

ATM toppers - video screens built into ATMs (automatic teller machines) which run advertising and other information independent of the ATM.

Attributes - The characteristics of a style that you can modify; for example, the degree of slant in the italic style.

Authoring Station - A machine running software, used for authoring and publishing the scripts that are sent to Players.

Authoring System - Software for assembling multimedia applications.

Authoring Tools - Authoring tools usually refers to computer software that helps multimedia developers create products. Authoring tools are different from computer programming languages in that they are supposed to reduce the amount of programming expertise required in order to be productive. Some authoring tools use visual symbols and icons in flowcharts to make programming easier. Others use a slide show environment.

Back Channel - A data pathway through which a Player can send information back to the network manager.

Backdrop - An optional adjustable rectangular area of colour behind a screen element.

Background - The graphic image or plain colour used as the basis for a screen page on which elements are placed.

Bandwidth - The amount of data that is able to be sent over a network, measured in Kilobytes and Megabytes per second (Kbps and Mbps). Modern low bandwidth communications include dialup modems and ISDN, ranging from 56Kbps to 128Kbps, but actual downloading times are closer to 1/10th of this speed. High-speed cable modems, DSL, T-1, and Satellite are much faster, by factors of as little as 10 or even higher than 100.

Bevel - A three-dimensional effect that can be applied to text elements and clips in the application.

Bounding Box - The box, represented by the selection frame, that surrounds a multi-line text element. The element's text lines can be aligned within the bounding box (left/center/right) independently of the alignment of the element as a whole.

Branch - For script execution to jump to a different point in the linear sequence of events, as the result of a Go To or Repeat event.

Broadcast - A type of connection in which Network Manager sends information to many Players all at once, rather than making a separate connection to each Player one at a time.

Broadcast Folder - A folder on the Broadcast Server machine in which published files are received for subsequent broadcast transmission.

Broadcast Server - A machine that prepares and transmits broadcast files received from a Network Manager machine. Also may refer to the broadcasting software that runs on this machine, or the Network Manager definition of the machine's location.

Button - An area on the screen that responds when selected. Software menus consist primarily of buttons, and scripts can define buttons that the viewer of the script can select, for example to proceed to the next page of the script.

Cabling - The data lines run to connect computer, display, or power sources

Call Center - A location staffed by telemarketing, telesales, or technical support staff. Often times, call statistics are calculated and displayed on displays.

Captive Audience Networks - A captive audience network is a digital advertising media network installed where your target audience is assured to remain in place for a period of time. Typical captive audience networks are installed in supermarket queues, petrol station pumps, banks, and wherever people gather and wait.

CAT5 - A data and communications cable adopted by the Telecommunications Industry Association and ISO (International Standards Organization). This version of Category 5 uses all four pairs of wires to both send and recieve. This version is formally called ANSI/TIA/EIA 568A-5 or simply Category 5e. Category 5e operates at up to 350MHZ.

Center Alignment - Alignment that places items an equal distance from left and right margins.

Channel - A script that has been published in such a way that when its contents change, the updated material is forwarded to machines running the viewer that have subscribed to the channel.

Character Generator - A device for creating text on video. Character generators are often used to make information channels and electronic bulletin boards for TV and Cable.

Choose - To put a menu option into effect, usually by clicking on a button. This is different from selecting, which highlights an object, file, etc. to work with, but does not actually perform the work.

Clip - A predefined graphic image, such as a picture, drawing, symbol, etc., that can be imported and positioned on a background.

Closed Circuit Television - Traditionally, a private television network broadcasted internally within an organization. Modern narrowcasting solutions work over the Internet, deploying custom video and messaging anywhere in the world.

Codec - A software module responsible for compressing and/or decompressing an encoded media format such as AVI digital video.

Colour Bar - The horizontal strip at the top of most Design menus, used to assign colours to elements and certain styles. It shows the colour chips of the current colour set in the User palette, and also includes the Colour Set Switcher.

Colour Chip - Shows the colour used when the style is applied. The blocks of colour on the colour bar are also colour chips.

Colour Depth - The number of possible colours in a graphic image, stored as a given number of bits per pixel. A colour depth of 8 bits provides 256 colours; 16 bits (also known as "High Colour") provides about 65,000 colours; 24 bits (also known as "True Colour") provides about 16,000,000 colours.

Colour Palette - A set of colours that make up an image or animation, or the set of colours available to be applied to elements on a page.

Colour Set - The set of 16 colours of a palette that are shown at one time in a Design menu colour bar. A palette can have many colour sets, selectable by the Colour Set Switcher.

Colour Set Switcher - A special value control to the far right of the colour bar in Design menus that allows you to cycle through the colour sets in a palette.

Combination Icon - A toolbar icon that is divided into two areas. The right-hand side of the icon, containing a downward pointing arrow (d), opens a drop-down list when clicked.

Composite Video - A standard video signal containing colour, brightness, and sync information. VCRs and dvd players almost always include a composite video output.

Compression - The process of condensing a file, video, or animation using special hardware, software, or both so that it requires less storage space.

Confirmed Broadcasting - Broadcasting in which there is a back channel through which Players can respond to transmissions with confirmation or error messages. See also Back Channel.

Connection - A set of communications parameters that can be named and saved for use with different Players.

Content - Any files that are played back, including graphics files, sound files, video files, and script files themselves.

Content Folder - A folder on the Player machine in which all content files sent to the Player are stored. See also Installed Content folder.

Crawltext - The segment of text that moves through a Text Crawl element' box.

Crop - To cover up portions of a graphic image that are not needed by adjusting its top, bottom, and side borders.

Database - The collection of data on accounts, Players, jobs, etc. that collectively define an information network installation and its settings.

Datacasting - Broadcast of digital information over networks to receivers and players. Datacasting is sometimes used as an alternative to traditional video broadcasting, because the receivers and player units can have the "intelligence" to customise their playback programming for the location and intended audience. The system of receivers set up to receive messages from a particular datacast are known as Datacasting Networks, which are a venue for advertisers.

Decompress - The process of expanding a file to its original uncompressed form after it has been compressed.

Default - A value or option that system uses if you do not specify anything.

Design Button - A button that generates a pop-up list of the menus available for designing and composing a page that has a background.

Design Icon - A toolbar combination icon that generates a drop-down list of the menus available for designing and composing a page that has a background.

Design Menu - A menu providing access to all the text or graphics utilities that can be used when composing a page. The Design menus include: Text to create and manipulate text elements. Clips to import and manipulate clip-art images. Palette to customise the colours in backgrounds, clips, and text. Background to modify or replace an existing page background. Buttons to create and modify buttons for interactive presentations. Styles to define special settings for text and graphic elements; for example, the length and direction of a shadow, the thickness of an underline, etc. List to examine the relationship in sequence and in time among the elements of the page; for example, when text appears, or a graphic wipes in or out.

Digital Dynamic Signage - Digital dynamic signage is a term used to describe the emerging industry where flat panel devices such as plasma screens and liquid crystal displays are used as moving posters, electronic bulletin boards, etc.

Digital Dynamic Signs - Digital dynamic signs are flat panel devices, such as plasma display panels or liquid crystal displays that are being used in signage applications. That is to say, digital dynamic signs are flat panel TVs being used as signs.

Digital Instore Merchandising - Digital in-store merchandising refers the use of digital audio/visual equipment in retail environments to help compete for consumer attention. Increasingly, flat panel display devices, such as plasma screens, liquid crystal displays, and LED signs are being used to fill all available merchandising "real estate".

Digital Media Network - The term digital media network can refer to anything from multiple websites, to multiple television stations being centrally owned and operated. With the reduction in cost of custom controllable player devices, a new breed of digital media network is emerging, known under many different terms. The industry appears to be settling on the term digital signage to describe these new digital media networks, where custom images are digitally delivered to sign-like devices located throughout retail environments, or the enterprise.

Digital Media Networks - Digital Media Networks consist of output devices such as televisions, computer monitors, plasma display panels, and liquid crystal displays that are networked together and remotely controlled by the Network Operator using a control system. A digital media network may be used for advertising, merchandising, delivering news or emergency information, or corporate and community events, depending on the venue. Such networks are appearing in venues such as retail outlets, shopping malls, franchises, office buildings, outdoor billboards, stadiums and sporting arenas.

Digital Multimedia Broadcast - The process of broadcasting multimedia over the Internet, or satellite, to be tuned in by multimedia receivers, or players, capable of playing back the multimedia program. Through a process called multicast, a single broadcast can send programming to thousands of receivers, which can play back the content individualised to the location. This is one of the advantages of multimedia broadcasting over traditional video broadcasting.

Digital Signage Network - A digital signage network is a series of interconnected flat panel screens or televisions that are presented similar to traditional signs, but can be controlled from a remote location to deliver dynamically changing content.

Digital Signs - Plasma display panels (PDPs), liquid crystal displays (LCDs), light emitting diode signs (LEDs), or traditional television (CRTs) being used like signage. That is, instead of tuning in a television station, they are showing specially prepared visual images to make them function like signs. This gives the operator of these signs the ability to update them quickly, and to use engaging content.

Digital Video - A video that has been digitized so that it can be controlled from a PC and displayed directly on a computer monitor.

Dithering - An image-processing technique that makes a digitized or rendered image appear smoother and more natural by simulating additional colours.

Drop-down Icon - A toolbar icon with the symbol that displays a list of options; choosing one of the options enables you to access other functions or menus.

Dynamic Digital Signage - See Dynamic Signage.

Dynamic Signage - Literally means, moving signs, and now covers two fields. The first is the novelty field of moving kinetic signage, such as billboards with moving parts. The second refers to the increasingly common use of plasma display panels (PDPs), liquid crystal displays (LCDs), or other flat screen displays as signs. These signs can display video and other moving images. Dynamic signage is an emerging field, and is still being defined. Often times, the advantage of dynamic signage is lost by the use of mind-numbing repeating loops that quickly lose audience appeal. The true advantage of dynamic signage come in always delivering content that is fresh and relevant to the target audience, which may change by location or time of day. This customised content delivery is cost-prohibitive with traditional video production and animation. Consequently, multimedia software is frequently being turned to as a way to produce multimedia messaging more quickly than by any other means.

Dynamic Signs - see Digital Signage.

Dynamic Visual Messaging - The process of using animated graphic design to communicate to target audiences through signs and public displays.

Electronic Billboards - Billboards that can be updated electronically. This term covers a wide array of products. Sometimes it is used to refer to television channels run by computers, and sometimes it refers to very large screen video displays actually being used outdoors as billboards. Both are growing trends in advertising.

Electronic Kiosks - Terminals that disseminate information and services to the public through touch-screens and video displays. Electronic kiosks come in all shapes and sizes. They are often built by display companies and customised to individual needs by multimedia developers and value added resellers. They often incorporate card readers, coupon printers, and other devices specific to their application. The use of electronic kiosks as Internet Access Terminals is a growing trend.

Electronic Signage - When digital media such as plasma display panels (PDP), liquid crystal displays (LCD) or light emitting diodes (LED) are used to replace traditional signs. Advantages include increased visual arresting power, rapidly updateable, and the ability to construct large digital signage media networks.

Element - Anything that can appear on a page of a script, for example, a clip or a text line.

Element Design Menus - Any of the several Design menus used for working with the properties of the different types of elements in a Designer, such as the Design Text, Design Clip, Design Box, Design Animclip and Design Text Crawl menus.

Element Wipe - An effect that defines the way one or more elements (text and/or graphics) of a screen page moves onto and/or off the page.

Emergency Alert Systems - Systems allowing for the rapid dissemination of late-breaking news and information.

Emergency Notification Systems - See emergency alert systems

Emergency Response Networks - See emergency alert systems.

Enclosure - A piece of equipment which houses the components, such as a monitor or display, and in some cases a computing device and/or other option peripherals devices such as printers, keyboards, etc.

ERP (Enterprise Resource Planning) - Business software for running every aspect of a company including managing orders, inventory, accounting, and logistics. Well known ERP software providers include BAAN, Oracle, PeopleSoft and SAP, collectively known to industry insiders as the "BOPS". ERP software deployments are usually associated with very large companies such as those in the Fortune 500, but as competition drives technology forward, accounting and industry-specific business management software is entering the ERP market space.

Evaluate - To look at an expression and return the single numeric, logical, or text value that is its result. For example, the expression '1+2+3' evaluates as 6; '8 < 5' evaluates as FALSE. See also expression.

Event - An action in a script; virtually everything that happens in a script is an event, including text, sounds, wipes, animations, etc.

Expression - A mathematical or logical statement that a software program can evaluate to arrive at a variable value or TRUE/FALSE condition.

Fade - A gradual change in a setting (such as volume) that takes place over a specified period of time. See also fade-in; fade-out.

Fade-in - A gradual increase in a setting (such as volume) that begins at a zero point and reaches a specified value in a certain length of time.

Fade-out - A gradual decrease in a setting (such as volume) that begins at a specified value and reaches zero in a certain length of time.

Flat Panel Signage - Refers to using flat panel electronic display devices, such as plasma display panels (PDPs) or liquid crystal displays (LCDs) in place of traditional signs. Advantages include the ability to update messaging rapidly and to deliver scheduled messaging to targeted audiences.

Flow - The sequence of pages shown when you run a script. This can be different from the sequence of the pages in the script itself.

Fly-on - A type of wipe in which an image or text moves onto the screen from a position outside the screen borders.

Frame - In an animation, one of the individual images displayed in sequence with others to create the illusion of movement.

Frames Per Second - The speed at which an animation, film or video is displayed. The frames per second setting for an animation should be at least 12 to create the illusion of movement.

FTP (File Transfer Protocol) - A standard protocol for transferring data over the Internet. To use FTP, FTP software must be set up on both sending and receiving ends of an FTP transmission, and the client (initiator) must have a username, password and a valid target address on the server.

FTP Server - A computer that can receive requests for an FTP link from a client machine, or the software on that machine that allows it to do so. IIS includes FTP server capability. Also called an FTP host. See also IIS.

Function - An automatic procedure that accepts one or more variables or values as input and returns a value (text, numeric, or logical) as a result.

Genlock - A video device that synchronizes two video signals and enables them to be mixed; for example, to overlay a subtitle produced on the computer onto live video.

Graphical User Interface (GUI) - A computer working environment, such as Windows, that represents files and operations visually, using icons, buttons, windows, and other imagery that you can manipulate with a mouse.

Graphics - Images such as symbols, drawings, diagrams, photographs and clip art.

Group - A collection of pages or elements represented by a single line in the Main menu.

HDTV (High Definition Television) - The next generation of video content, capable of almost three times the clarity and resolution of standard NTSC and PAL broadcasts.

HDTV Signage - See digital signage.

Head-end - An installation that is the final point from which video feeds for multiple channels are sent to broadcast or cable television customers. In addition to transmitting equipment, a head-end can contain feeds for various channels.

Health Monitoring - In information technology and multimedia terms, health monitoring refers to checking on the status of computers to see if they are still running.

Heartbeat - A brief status message sent to the Network Manager machine at regular intervals by a running Player, for health monitoring purposes.

Hit Area - The area of an interactive button that responds when the mouse pointer passes over it or clicks on it. This can be a rectangular area surrounding the button, or an irregular area defined by pixels in the button image.

Horizontal Scan Rate - A figure that describes the speed of the electron beam that creates the scan lines of a video or computer display. The horizontal scan rate for standard NTSC/PAL video is approximately 15 kHz. For VGA displays and above, scan rates of 31.5 kHz or more are used.

Host, FTP - See FTP server.

HTML (Hypertext Markup Language) - HTML is the language used to create Web pages for display in Web Browsers. HTML can be created directly with text editors or Web publishing programs, such as DreamWeaver, or it can be the output of other programs that make dynamic webpages on the fly. When you select "view source" from your Web browser, the code that you are viewing is HTML.

IIS (Internet Information Services) - Microsoft's suite of Internet-related software included with the Windows 2000 and above operating system software. IIS provides both FTP server and web server capability.

Image Processing - Enhancing and manipulating an image, such as by adjusting its size, resolution, or colour palette.

In wipe - The way an element moves onto a page or a page moves onto the screen to replace another page. See also element wipe.

Independent Element - An element that has an In wipe, so that it wipes in independently of the background. See also passive element.

Information Display Systems - Technology used to display information on screens for communication.

InStore Digital Media - See digital signage.

Interactive Kiosks - Usually free-standing information displays that allow users to retrieve information through touch-screens, buttons, and video displays. Interactive kiosks are frequently controlled by computers running software written with multimedia authoring software.

Interactive Script - A script in which the viewer controls the direction of the production.

Interlace - A process used to refresh video displays and some computer displays that alternately scans every other horizontal scan line in the display. Interlaced displays often flicker, especially when showing static images containing narrow horizontal lines.

Internal Communications - A term referring to communication within a company or supply chain. Also used to refer to the policies, departments, and specific technologies. Telephones, faxes, computers, bulletin boards, memos, newsletters, and email are all part of a company's internal communications.

Interrupt Scheduling - A type of scheduling for pages that causes a scheduled page to play at a precise time, interrupting any other script activity currently occurring.

IP Address - An address in four-part numerical format that uniquely identifies a computer accessible over a TCP/IP-based LAN or the Internet. For example, 120.0.0.10.

IP Multicast (Internet Protocol Multicast) - IP Multicast is a networking transmission protocol allowing multiple computers to simultaneously receive the same transmission. This is faster than sending packet to each individual computer, and is an efficient way to update many remote locations simultaneously. Each player site is "tuned in" for the packets being sent by the broadcast server. The question then arises, how can each remote site deliver customised content to its localised audience? The answer is in the fact that each player knows where it is, and makes intelligent choices about what parts of the broadcast it needs, if any. IP Multicast is not limited to the Internet and terrestrial connections, but can also be broadcast over Satellite to be received by inexpensive VSAT dishes, often already part of a company's infrastructure for their WAN. In this way, multimedia networks of unlimited sizes can be created.

ISA (Industry Standard Architecture) - A standard expansion bus for internal devices on the PC platform.

ISP (Internet Service Provider) - A company that provides web hosting, FTP hosting, email and other Internet services.

Job - A command or series of to perform maintenance tasks on one or more Players. Jobs typically involve uploading and downloading scripts, log files, and media files.

Kerning - An adjustment of the normal space between certain combinations of characters, to eliminate excess space.

Kiosk - An electronic device the provides information (via a display), is interactive in nature (a multimedia combination), and allows for input (via an input device such as a touchscreen or a keyboard). The kiosk is unique from a standard pc as it is created for a specfic user and specific purpose and is owned, controlled, and operated by the deployer.

LAN (Local Area Network) - A network of computers sharing a single server or servers in a single location, typically in an office or building. See also WAN.

LCD (Liquid Crystal Display) - LCDs are thin displays used for TV, computer monitors, wristwatches, digital thermometers, microwaves, digital signage, and countless other technologies, possibly the most common and diverse electronic flat screen technology in use today. LCDs contain two thin transparent surfaces (usually glass), with grooves full of a liquid crystal substance. Thin film transistors (TFTs) on the surface material apply an electric current to the liquid crystals. This current will polarize the crystals, making them twist. This twisting blocks light. When off, the liquid crystals go into random alignment and let light pass through.

LCD Projection Panel - A portable display unit that is placed on top of an overhead projector and connected to a computer so that the computer's display can be projected onto a large screen.

LED (Light Emitting Diode) - Diodes are electronic components that let electricity pass in only one direction. Light emitting diodes are diodes that emit visible light when electricity is applied, similar to a light bulb. When many LEDs are side-by-side, they can create pictures, such as the scrolling red LED signs found everywhere. LED displays are often confused with LCDs (liquid crystal displays), but they are different technologies.

Linked Content - Content that is referenced by a script, but is not sent as part of the script when that script is sent to Players. Linked content can be updated at a separate time from normal script content or from an independent source.

List view - In the Main menu, a listing of pages by name, in sequence by page number; in the File menu, an alphabetical listing of subfolders and files in the current folder. See also Shuffler view.

Location Based Advertising - The placement of advertisements near an actionable location. In other words, location based advertising deals with strategically placing messaging near where buyer behavior can be most immediately influenced, and converted into a sale. This most often applies in retail settings, such as shopping malls.

Location Based Media - Refers to any public display media, such as signs, billboards and posters located out of home, usually near where the audience is near the point of purchase decision.

Loop - (1) In a script, a sequence of events that repeats. (2) A setting determining the number of times a sound or animation should repeat when it runs.

Marquee - (1) A permanent roof-like structure or canopy of rigid materials supported by and extending from the facade of a building, frequently used to display signage. (2) On the World Wide Web, the term marquee is often used to describe scrolling text effects created with the HTML marquee tag (Microsoft Internet Explorer-specific), Flash, JavaScript, and Java Applets.

MCI (Media Control Interface) - The standard method of controlling multimedia devices before DirectShow/Windows 95. It is a standard for communicating with devices that support VCR-like operations like play, pause, stop, etc., such as MPEG playback cards. A given device might offer both MCI and DirectShow drivers.

Multi-Tile - A multi-tile divides the source image into several "slices", which are tiled together to produce a final image of the desired size.

Multimedia - The combination of various presentation media such as text, sound, graphics, animation, and video.

Multimedia Displays - TVs, plasma display panels, LCDs or other video display device delivering multimedia conent, often connected to a computer and touch screen.

Multimedia Signs - Multimedia signs are a growing trend in the signage industry, where televisions or flat panel display devices such as plasma screens or liquid crystal displays, are turned into updatable signage. Advantages of multimedia signs include the ability to deliver messaging to targeted audiences depending on schedule or environmental conditions. For example, advertise umbrellas when it's raining.

Multistyle Button - A selector-like button in the Text and Clips menus, used to access a variety of styles that can be applied to text or graphics.

Narrowcasting - Narrowcasting in public places is a growing trend in advertising. The concept means delivering highly targeted and customised messages to audiences in public locations at scheduled times. Usually, this is accomplished with a networked multimedia system allowing rapid production, customisation, distribution, and playback to multiple locations on display devices such as televisions, plasma display panels, and liquid crystal displays (indoors or outdoors). The advantages of narrowcasting over traditional media include lower production costs, greater flexibility, and more attention-grabbing visuals.

Narrowcasting Networks - Narrowcasting networks are a new type of digital media designed to reach targeted portions of the public. They employ selective broadcasts of media-rich content to a variety of types of "receivers". These receivers are typically some form of television, computer monitor, or flat screen display such as plasma display panels (PDPs) or liquid crystal displays (LCDs) with a multimedia player attached. They emulate the appearance of signs, billboards, and kiosks, located in prime locations for exposure to your desired demographics. These players can then be selectively updated with scheduled, rapidly produced, and rapidly adapted programming. Narrowcasting networks may display targeted messaging to bus terminals, retail outlets, sports arenas, theaters, outdoor billboards, office buildings, and other public venues. More narrowcast networks are springing up around the world as the cost of deployment decreases, and the ease of maintenance increases.

Newscasting - Sending news out over the Internet, either point-to-point, or with multicast for client computers to receive and display.

Out of Home Advertising - Refers to that portion of advertising delivered in locations other than the home. Primary examples include billboards, movie theaters, and petrol stations.

Out of Home Media Networks - Out of Home Media Networks are like private television channels run by companies, organizations, and advertisers without having to have a complete television studio. For example, a growing number of companies are finding it viable to install small pilot programs where they push rapidly produced content, such as news, weather, and stock quotes, mixing in advertising. As the pilots prove successful in driving consumer behavior, the network can be expanded from dozens of screens, to hundreds or thousands, located throughout a country or region. Such out of home media networks are sometimes also referred to as location-based media, or location-based advertising, because they appeal to the target audience at or close to the point of purchase, such as shopping malls, retail chains, or franchise operations.

Out wipe - The way in which an element moves off a page.

Outernet - A term used to describe out-of-home electronic display networks.

Overlay - A feature of most video cards that allows particularly smooth digital video playback without overloading the computer's CPU.

P.O.P. (Point of Purchase) - The term point of purchase usually refers to the industry concerned with customer behavior at the location of the purchase decision. POP is considered one of the most important aspects of advertising and merchandising. It is believed that the most critical time to influence buyer behavior is when they have money in hand.

Passive Element - An element that has no In wipe, and is already on the page when the page wipes in.

PDP (Plasma Display Panels) - PDPs, also known as gas plasma displays or plasma screens, are flat screen display devices that are used for television, computer monitors, and dynamic signage. They consist of two layers of glass surrounding cells of xenon and neon glass. Surrounding electrodes switch the cells on and off, causing them to emit light and create the picture. This emitted light makes PDPs have an appealing vibrancy that competes with Cathode Ray Tubes (CRTs), the technology of traditional televisions.

Periodic Scheduling - A type of scheduling that defines ranges of time within which events are allowed to play.

Permissions - Attributes that may be associated with a folder to restrict the types of access that different users have to it.

Pipe - A software/hardware construct that moves data from one location to another.

Plasma - Just as solids, liquids and gases are states of matter, plasma is a state of matter. Specifically, plasma is ionized gas. That is, gas that has been given an electrical charge by being stripped of electrons. Such ionized gas is the most abundant observable form of matter in the universe, being a main ingredient in stars and nebulas. And as if we're not already seeing enough of the stuff, it's also what goes inside those flat panel displays called "plasmas" that are popping up all around us. Why? Because when you apply an electromagnetic field to plasma, it glows, making for a nice, vibrant TV screen, computer monitor, or digital signage.

Plasma Display Panels - Plasma display panels are components in the current generation of flat panel televisions, computer monitors, and digital signage. They consist of a material called "plasma", which is an electrically charged noble gas (usually argon, xenon, or neon) sandwiched in millions of compartments between 2 panes of transistor-covered glass. An electrical charge is applied to the gas to make it glow red, green, or blue. This is similar both to how neon signs work (the application of an electrical charge to a noble gas), and how cathode ray tube (CRT) works, in illuminating cells red, green or blue to create an image.

Polling Interval - The length of time that may elapse before a Player checks for a certain condition, such as whether a job has been delivered to its job folder, or whether its script has been updated.

Port, IP - A numerically designated access point for messages of a particular type in TCP/IP network communications.

Public IP Multicast Displays - A device capable of receiving an IP multicast transmission and displaying the contents, often used to update large numbers of visual display devices including digital signage.

Push Software - Software that pushes news and information from a broadcast server to a player client. Push technology can be used to deliver vital information to screens without the player asking.

RAS (Remote Access Service) - A service provided by Windows Dial-Up Networking to establish a network connection with another computer via modem.

Remapping - Automatically rearranging and/or adjusting the colour palettes of images so that they share colours, with the least possible distortion of the images' intended appearance.

Return Value - The value that results as the output of a function or the evaluation of an expression.

Root - A particular folder chosen as the base reference point, relative to which all other paths within a web server or FTP server are defined.

Self-Running Script - Also referred to as a continuous script; a script designed to run continuously; for example, to demonstrate a product or service, or provide information without interruption.

Special Event - An event that is not associated with a file. Special events can be added like pages in the Main menu, or like elements in the List menu. They are used to control a device or an element, for example, changing the volume of a sound.

Store and Forward - A networking term referring to when information is stored at routing points before its ultimate destination. Store and forward can be used to reduce the load on the original server. Players can retrieve their data from other players instead of the original broadcast site.

Sysadmin (System Administrator) - Employee responsible for a company's computer network, also sometimes called a network administrator. A sysadmin's duties may include configuring the company's firewall, acquiring and installing hardware, setting up email addresses and keeping the printers working.

TAPI - A standard for PCs that allows applications to easily use serial devices (such as modems) that have already been configured in Windows.

TCP/IP - A networking protocol designed for flexible, high-speed communications, used for LANs and the Internet.

Timeout - A time limit for an operation. If the timeout period expires before the operation completes successfully, some default or alternative action is taken.

Topology - Physical and logical layout of a networked system.

Touch Screen - Also called a touch-sensitive screen, a computer monitor attachment that can sense the location at which a viewer touches the screen to respond to a question or prompt in a script.

Traffic - Data being transferred over a network. Downloading text and graphics represent low-bandwidth traffic while streaming video is higher.

TWAIN - A standard developed to allow imaging devices such as scanners and digital cameras to communicate with PCs.

UNC (Universal Naming Convention) - A standard format for paths referring to locations directly accessible on a local area network: \\\\\\...

URL (Universal Resource Locator) - A string of text that specifies the location of an object accessible through the Hypertext Transfer Protocol (HTTP), typically a World Wide Web address, as of a home page or iplay channel. A Web URL begins with "http://".

VAR (Value-Added Reseller) - A person or company that sells, services, configures, and/or trains clients to use an advanced product. Application software installations are often set up and maintained for their customers by VARs.

Versionation - The process of inserting a serial number into a file name or folder name to indicate the order in which successively newer versions of a file with the same base name have been received on the Player.

VSAT (Very Small Aperture Terminal) - VSATs are those little satellite dishes that you see used for PrimeStar and DirecTV among other things. In addition to tuning in satellite TV, they can be used to receive data such as IP multicasting. Many companies create a wide area computer networks (WAN) infrastructure.

WAN (Wide Area Network) - A network of computers sharing servers in multiple locations, such as the different offices of a large company. See also LAN.

Wi-Fi (Wireless Fidelity) - A local area network (LAN) that communicates via radio waves on the 802.11 standard instead of wires.

XML (Extensible Markup Language) XML is a standard data format used for text files and information in computer memory that allows easy data processing and exchange between different applications.

XSL (Extensible Stylesheet Language) - XSL was the original proposal to allow formatting of XML files for display. It has since diverged into XSL FO and XSLT. They each derrive from XSL, but use different parser programs and acheive slightly different goals. XSL FO, which stands for XSL formatting objects, is most often used for outputting PDF files with extreme formatting and pagination control. XSLT, which stands for XSL transformations, is most often used to convert one XML data structure into another.

XSLT (Extensible Stylesheet Language Transformations) - XSLT is a standard subset language of XML designed to allow one XML data structure to be transformed into another. For example, XML files can be transformed into HTML pages (the way this website is made), or into WML for display on Web-enabled mobile phones.