Suchergebnisse

The demand for educated labor force has increased in developing countries like Kenya. Owing to this fact, more often Universities and training colleges in Kenya enroll students who want to further their education. Meeting the minimum entry requirements is key for one to get admitted into an institution of higher learning. However, the use of illegitimate secondary school certificates to join Universities in Kenya has been reported in political and business sectors. Perpetrators of this academic crime have succeeded to an extent of enjoying benefits of higher education, despite there being measures to authenticate secondary school certificates. The aim of this study was to develop a prototype that can be used by institutions of higher learning to authenticate secondary school certificates using QR-Code and digital signatures. Agile software development methodology was adopted to develop the prototype which included; requirements gathering, architecture and design, development and testing. This study targeted the Kenya National Examination Council, research department for data collection. Ten respondents were purposively selected in this department. Questionnaire was used as the main data collection tool for both qualitative and quantitative data. The findings indicated that 87% of respondents said that the current security features on the certificates were not sufficient to prevent document fraud. In addition, 98% said that a computer based system would help in detecting illegitimate certificates. During prototype testing 78% agreed that a computer system was leveraging on the existing methods of authentication. The study recommended the adoption of a computer system by the Kenya National Examination Council to help Universities and Colleges verify and authenticate secondary school certificates before enrollment of new students

Zusammenfassung. QR-Codes sind keine völlig neue Entwicklung, doch ist ihr Ein­satz im öffentlichen Raum erst in den vergangenen Jahren in den Vordergrund getre­ten. Besonders die digitale Mediatisierung der Gesellschaft durch Smartphones und mobiles Internet hat die Nutzung dieser Technik für Medienunternehmen und private Nutzer deutlich interessanter gemacht. Noch ist jedoch unklar, welchen effektiven Nut­zen diese Technik bringt und welche Anwendungsbereiche sinnvoll und lohnenswert für potentielle Rezipienten sind. In diesem Beitrag möchte ich sowohl auf die technische Seite von Barcode-Strukturen eingehen als auch die Gestalt des QR-Codes unter semi­otisch-semantischen Gesichtspunkten erfassen und ihre Besonderheiten herausstel­len. Es wird untersucht, welches Wissen erforderlich ist, um QR-Codes als Zeichen zu erkennen und erfolgreich zu nutzen, und ein Beitrag zur Verdeutlichung des Nutzungs­potentials von QR-Codes als ein neuer Zeichentyp im öffentlichen Raum geleistet.

Statistisch gesehen besitzt jeder Deutsche bereits heute mehr als ein Handy, Tendenz steigend. Dank wachsender Übertragungsraten und neuer Technologien wird die Nutzung mobiler Datendienste über mobile Endgeräte immer komfortabler, schneller und kostengünstiger. Die Vision, immer und überall online zu sein, ist für viele Nutzer deshalb schon heute Realität. Die digitale Welt ist allgegenwärtig. Trotzdem existieren die reale und die virtuelle Welt oft parallel. Medienbrüche verhindern eine nahtlose Integration von mobilen Endgeräten in bereits erprobte Abläufe. Mobile Tagging dient in diesem Zusammenhang als innovative Zugangstechnologie, die eine schnelle und einfache Konnektivität zu mobilen Diensten durch das Scannen eines Barcodes mit der Kamera eines mobilen Endgerätes ermöglicht. Kernaufgabe ist die Verknüpfung von realen Gegenständen mit digitalen Informationen durch das Überwinden von Medienbrüchen und das Schaffen von Medienkonvergenz. Durch die voranschreitende Verknüpfung der Medien wird der Nutzer zudem in ein ganzheitliches intelligentes System integriert, bei dem situations- und kontextspezifische Angebote im Vordergrund stehen. In diesem Zusammenhang finden deshalb die Begriffe Physical World Connection und Internet der Dinge häufig Anwendung. Neben einer grundlegenden Einordnung dieser Begrifflichkeiten werden in diesem Buch vor allem die technischen Aspekte des Mobile Tagging, wie Barcode-Symbologien, Barcode-Syntax und Datenformate untersucht. Da die Potenziale der Technologie für die Informations-, Kommunikations- und Transaktionsmöglichkeiten des Mobile Business bislang weitestgehend unerforscht sind, stellt eine Analyse der Einsatzgebiete und Potenziale einen weiteren Schwerpunkt dar. Hierbei werden sowohl die Potenziale im Mobile Marketing und Extended Packaging, als auch im Verlagswesen und Mobile Couponing untersucht. Aus Anwendersicht werden anhand einer Mobile-Tagging-Checkliste konkrete Handlungsempfehlungen für Unternehmen gegeben, die den Einsatz der Technologie in Erwägung ziehen.

This article explains the widespread adoption of Quick Response (QR) codes from a media genealogy perspective. Understanding QR codes as more than the materiality of their machinic embodiments and rather as a method of systematically and repeatedly addressing emergent problems, I argue that the operative logic of QR code is that of convenient efficiency. Convenient efficiency captures three dynamics that drive QR codes' ubiquity: the potentiality of spontaneous system synergies (system/distributed convenience coupled with streamlined efficiency); the autonomy of the subjects involved as part of this cybernetic system (personal convenience coupled with stacked efficiency); and the relative independence of the networks/assemblages that these practices constitute (convenient efficiency). That the convergence between convenience and efficiency as driving forces in contemporary technological culture has origins in the shop floor is consequential to the way motion, time and the body become disciplined—as well as the epistemological practices that cohere around these forces.

PurposeThis paper describes visitors' reactions to using an Apple iPad or smartphone to follow trails in a museum by scanning QR codes and draws conclusions on the potential for this technology to help improve accessibility at low‐cost.Design/methodology/approachActivities were devised which involved visitors following trails around museum objects, each labelled with a QR code and symbolised text. Visitors scanned the QR codes using a mobile device which then showed more information about an object. Project‐team members acted as participant‐observers, engaging with visitors and noting how they used the system. Experiences from each activity fed into the design of the next.FindingsSome physical and technical problems with using QR codes can be overcome with the introduction of simple aids, particularly using movable object labels. A layered approach to information access is possible with the first layer comprising a label, the second a mobile‐web enabled screen and the third choices of text, pictures, video and audio. Video was especially appealing to young people. The ability to repeatedly watch video or listen to audio seemed to be appreciated by visitors with learning disabilities. This approach can have low equipment‐cost. However, maintaining the information behind labels and keeping‐up with technological changes are on‐going processes.Originality/valueUsing QR codes on movable, symbolised object labels as part of a layered information system might help modestly‐funded museums enhance their accessibility, particularly as visitors increasingly arrive with their own smartphones or tablets.

The purpose of this research is to find a new method for blind and visually impaired people to receive information using Braille codes with QR code technology in publications, which will enable them to use the Internet to obtain diverse information by voice. Information is provided for blind and visually impaired people. This article is one of several parts the researcher presents on methods using linear or binary QR code to provide information (audio books, audio articles, audio stories for children, etc.) for people who have visual impairments. Developing a curriculum for the blind and the visually impaired is a responsibility of governments and civil society organizations. The author believes that the visually impaired have the ability to develop, promote and become more active in their communities if resources for improving their living, education, and health are available to them.