Track & Trace
Encyclopedia
In distribution and logistics
Logistics
Logistics is the management of the flow of goods between the point of origin and the point of destination in order to meet the requirements of customers or corporations. Logistics involves the integration of information, transportation, inventory, warehousing, material handling, and packaging, and...

 of many types of products, track and trace or tracking and tracing, concerns a process of determining the current and past locations (and other information) of a unique item or property.

This concept can be supported by means of reckoning and reporting of the position of vehicles and containers with the property of concern, stored, for example, in a real-time database
Real time database
A real-time database is a processing system designed to handle workloads whose state is constantly changing . This differs from traditional databases containing persistent data, mostly unaffected by time. For example, a stock market changes very rapidly and is dynamic...

. This approach leaves the task to compose a coherent depiction of the subsequent status reports.

Another approach is to report the arrival or departure of the object and recording the identification of the object, the location where observed, the time, and the status. This approach leaves the task to verify the reports regarding consistency and completeness. An example of this method might be the package tracking provided by shippers, such as Deutsche Post
Deutsche Post
Deutsche Post AG, operating under the trade name Deutsche Post DHL, is the world's largest logistics group. With its headquarters in Bonn, the corporation has 467,088 employees in more than 220 countries and territories worldwide and generated revenue of € 51.48 billion in 2010...

, United Parcel Service
United Parcel Service
United Parcel Service, Inc. , typically referred to by the acronym UPS, is a package delivery company. Headquartered in Sandy Springs, Georgia, United States, UPS delivers more than 15 million packages a day to 6.1 million customers in more than 220 countries and territories around the...

, AirRoad
AirRoad
AirRoad is a major national logistics company headquartered in Sydney, Australia, with operations in major capital and regional cities and towns around Australia...

, or FedEx
FedEx
FedEx Corporation , originally known as FDX Corporation, is a logistics services company, based in the United States with headquarters in Memphis, Tennessee...

.

Products and industries

Examples include:
  • Parcels shipped by postal or express couriers
  • Intermodal container
    Intermodal container
    An intermodal container is a standardized reusable steel box used for the safe, efficient and secure storage and movement of materials and products within a global containerized intermodal freight transport system...

    s
  • Explosives
  • Blood supply
  • Food including produce, frozen foods, processed foods, meats, drinks etc
  • Toys
  • Pharmaceutical, vaccine, and drug products
  • Medical device
    Medical device
    A medical device is a product which is used for medical purposes in patients, in diagnosis, therapy or surgery . Whereas medicinal products achieve their principal action by pharmacological, metabolic or immunological means. Medical devices act by other means like physical, mechanical, thermal,...

    s
  • Hospital supplies
  • Weapons
  • Chemicals
  • Livestock
  • Documents
  • Software
  • Employee monitoring
    Employee monitoring
    Employee monitoring refers to any method of tracking what an employee does while at work. This may include the use of video cameras, keystroke logging, email filters, or even just watching or listening to the employee. As a result of increased technology, this has become a very important issue in...

  • Cigarettes

Technology

The international standards organization EPCglobal
EPCglobal
EPCglobal is a joint venture between GS1 and GS1 US .It is an organization set up to achieve worldwide adoption and standardization of Electronic Product Code technology....

 under GS1
GS1
Founded in 1977, GS1 is an international not-for-profit association dedicated to the development and implementation of global standards and solutions to improve the efficiency and visibility of supply and demand chains globally and across multiple sectors...

 has ratified the EPC network standards (esp. the EPC information services EPCIS standard) which codify the syntax and semantics for supply chain events and the secure method for selectively sharing supply chain events with trading partners. These standards for Tracking and Tracing have been used in successful deployments in many industries and there are now a wide range of products that are certified as being compatible with these standards.

In response to a growing number of recall incidents (food, pharmaceutical, toys, etc) , a wave of software, hardware, consulting and systems vendors have emerged over the last few years to offer a range of traceability
Traceability
Traceability refers to the completeness of the information about every step in a process chain.The formal definition: Traceability is the ability to chronologically interrelate uniquely identifiable entities in a way that is verifiable....

 solutions and tools for industry.
Radio-frequency identification and barcode
Barcode
A barcode is an optical machine-readable representation of data, which shows data about the object to which it attaches. Originally barcodes represented data by varying the widths and spacings of parallel lines, and may be referred to as linear or 1 dimensional . Later they evolved into rectangles,...

s are two common technology methods used to deliver traceability.
RFID is synonymous with track-and-trace solutions, and has a critical role to play in supply chains. RFID is a code-carrying technology, and can be used in place of a barcode to enable non-line of sight-reading. Deployment of RFID was earlier inhibited by cost limitations but the usage is now increasing.
Barcoding is a common and cost effective method used to implement traceability at both the item and case-level. Variable data in a barcode or a numeric or alphanumeric code format can be applied to the packaging or label. The secure data can be used as a pointer to traceability information and can also correlate with production data such as time to market and product quality.

Packaging converters have a choice of three different classes of technology to print barcodes:
  • Inkjet (dot on demand or continuous) systems are capable of printing high resolution (300 dpi or higher for dot on demand) images at press speed (up to 1000fpm). These solutions can be deployed either on-press or off-line.
  • Laser
    Laser printer
    A laser printer is a common type of computer printer that rapidly produces high quality text and graphics on plain paper. As with digital photocopiers and multifunction printers , laser printers employ a xerographic printing process, but differ from analog photocopiers in that the image is produced...

    marking can be employed to ablate a coating or to cause a color change in certain materials. The advantage of laser is fine detail and high speed for character printing, and no consumables. Not all substrates accept a laser mark, and certain colors (e.g. red) are not suitable for barcode reading.
  • Thermal transfer and direct thermal. For lower speed off-press applications, thermal transfer and direct thermal printers are ideal for printing variable data on labels.


Consumers can access web sites to trace the origins of their purchased products or to find the status of shipments. Consumers can type a code found on an item into a search box at the tracing website and view information. This can also be done via a smartphone taking a picture of a 2D barcode and thereby opening up a website that verifies the product (i.e. product authentication).
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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