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1D barcode:
Most well-known type of barcode, you can find it on nearly all of your consumer products. The bar code was invented in 1952, but it is in the 70's that it has started to be commercially used through "UPC" standardization (Universal Product Code).
Read the article on Wikipedia

2D barcode:
Early in the 80's, engineers have tried to increase information storage capacity in 1D codes. They invented the first two-dimensional code called "2D code".
In addition to a superior capacity, these codes provide the advantage of being easier to decode by digital cameras (compared to laser barcode scanner) who had, until there, difficulties to distinguish the different bars of a 1D code.
Read the article on Wikipedia

Barcode formats:
1D : EAN/UPC 8 12 and 13 , ISBN , Code 39 et Code 128
2D : Datamatrix, QRcodes, PDF 417

Free or private codes:
Datamatrix, the first system of bar code in two dimensions, was born in the 1980s and belongs to the public domain. Since its invention, many formats of different codes have been created. Most are patented and owned by private parties such as Adobe, Microsoft, Toyota or are managed by associations of mobile operators. Some formats are free of rights (no royalties), like the QRcode of DENSO WAVE while others are completely private and often require the use of an appropriate reader. Therefore, they cannot be considered as universal.

MyTAGG chooses freedom, reliability and universality for the edition of its TAGGs by honouring the QRcode, because it is the most effective and the most common.
They also include the "Reed Solomon" algorithm, which allows the encoded information to be reconstructed in case of visual degradation of the code (up to 30% of its surface damaged).

Direct barcode:
A 'direct' code contains 'raw' information. It can be text, a telephone number, an email, a card in Vcard format, for example but it contains, more generally, generic identifiers (like universal product codes).
If the direct code has the advantage of being able to work without an Internet connection it cannot, on the other hand, be updated once issued. Furthermore, it is limited to a single function.

Indirect barcode:
An "indirect" code uses features that can only be found on the Internet and which, in fact, require an Internet connection. Generally those codes contain a webpage address (URL). Sometimes there is a simple identifier (direct code) which, once implemented in relation to a specific database, will then issue information and related services.
But beware, this kind of use is not at all universal! This means that a specific application, knowing the address of said database, will be needed to display the contents.

MyTAGG proposes an intermediate use: the ID-Url.

According to their exposure and their popularity, some TAGGs may generate unusually high traffic. This is why MyTAGG has a contractual limitation on the bandwidth consumption (number of views) generated by your TAGGs. This limit, particularly flexible, may be augmented by acquiring additional bandwidth capabilities.

MyTAGG offers you a personal storage space. It may contain images, backgrounds, logos that you want to use in your mobile pages generated via MyTAGG. The size of the space depends on the account formula you have subscribed to. Although storage space can be increased without changing your subscription, you can also use third-party services such as Dropbox or Google Drive.

Conditional contextual filters allow you to attach content to an object and to limit their access depending on certain conditions.
There are various filters that can be combined together.

The "Contact List" filter only allows specific contacts to access your contents.
The "Devices" filter only allows specific devices to access your contents.
The "Country" filter only allows specific countries to access your contents.
The "Language" filter only allows browsers with specific languages to access your contents.
The "Time Slot" only allows access to your content within a specific time period, for example from January 1st to February 22nd.

Filters combinations work in descending order or priority. When one of your ID-Urls is "called", they will be tested one by one. If any of the conditions corresponding to the filters is fulfilled, it will be executed. Those placed below on the list will therefore not be tested.

When referring to a 2D barcode, "flash" means "read". The word "scan" can also be used. Hence "flashing/scanning a TAGG" means "read a TAGG" or "get access to that TAGG's information".

FreeTAGG is the name MyTAGG has given to its Simple QRcode Generator.

An ID-Url is a classical webpage address (called url) which is used to identify a single object, multiple objects, or even a place in the physical world (e.g. a shop, a museum, ...).

It has many advantages:
- It uses the http protocol, which is universal, - You can use your own personal domain name to create identifiers in unlimited ways, - You can control the official content (meaning the webpages) attached to it, - You are independent from organizations such as GS1 that distribute and allocate unique identifiers.

Examples:

Prints, advertising:	Artworks:	Products:	Shops:
http://newspaper.biz/page5	http://museum.org/place354	http://company.com/productX	http://shop.com/location

Be carefull ! By using custom ID-Urls, you increase your dependence and reliance on your domain name (or host name). It becomes critical to control it carefully.

A reader is a software that reads (scans or flashs) barcodes. Available on many devices such as smartphones, tablets or even computer desktop. They usually are free and available.
The MyTAGG Reader is available for free in the "Readers" section.

Private access lists are made of contacts (emails) that you have previously added to your MyTAGG account. Once created, lists can be applied within filters for limiting the access to only certain contents that YOU chose. Members simply have to log in, using the email registered in the list, to access the informations.

NFC (Near Field Communication) is a connecting technology using electromagnetic fields. Unlike the RFID which has a range of several meters, the NFC only reaches out to a few dozen centimeters.

NFC is a long-term technology already available. It has many advantages over the QRcode technology. However, the cost of the QRcode being particularly low (a few drops of ink), many NFC tags will often have a printed QRcode on their back, containing the same ID-Url.
One notable difference in favour of the QRcode technology though is that unlike NFC, which is almost invisible, QRcodes gives an explicit signal to the user that information can be accessed.
Learn more on Wikipedia

The QRcode is the best known of bi-dimentionnels barcode formats. Invented by a subsidiary of Toyota, to the middle of the 1990s, for industrial purposes of tracking of parts, the QRcode knows today a worldwide success.

Learn more on Wikipedia

The SwitchTAGG is a tool of great simplicity made for developers/webmasters. Its purpose is to make WebPages to take away by transfering a web page displayed on a PC to a smartphone / tablet, in a gesture.
Example: you perform a route search from your desktop PC. And then, at the time of leaving, by a so fast and so simple gesture, you Flash the switchTAGG of the PC page and find your route directly on your mobile.

SwitchTagg code is available in the Developers.

In common language, TAGG is a QRcode or NFC chip, attached to an object, which allows everyone to connect to resources on the net.
In the MyTAGG interface, a TAGG is a tool that allows you to manage, single or multiple, Id-Url(s)' features. That is to say, the way to define the content and services that you wish to attach, and their access conditions.