1,039 research outputs found
Aspects and challenges of mashup creator design
With the advent of Web 2.0, an increasing number of web sites has started
offering their data over the web in standard formats and exposed their
functionality as APIs. A new type of applications has taken advantage of the
new data and services available by mixing them, in order to generate new
applications fast and efficiently, getting its name from its own architectural
style: mashups. A set of applications that aims to help a user create, deploy
and manage his mashups has also emerged, using various approaches. In this
paper we discuss the key factors that should be taken into consideration when
designing a mashup creator, along with the most important challenges that offer
a field for research.Comment: 5 pages, 14th Panhellenic Conference on Informatics (PCI2010),
September 10-12 2010, Tripoli, Greec
The snowflake effect: the future of mashups and learning
Emerging technologies for learning report - Article exploring web mashups and their potential for educatio
IT impacts on operation-level agility in service industries
A new kind of Web-based application, known as Enterprise Mashups, has gained momentum in the
last years: Business users with no or limited programming skills are empowered to leverage in a
collaborative manner user friendly building blocks and to combine and reuse existing Web-based
resources within minutes to new value added applications in order to solve an individual and ad-hoc
business problem. Current discussions of the Mashup paradigm in the scientific community are limited
on technical aspects. The collaboration and the peer production management aspects of the Mashup
development have received less attention yet. In this paper, we propose a reference model for
Enterprise Mashups which provides a foundation to develop and to analyse grassroots Enterprise
Mashup environments from a managerial and collaborative perspective. By following the design
science research approach, we investigate existing reference models and leverage the St. Gallen
Media Reference Model (MRM). The development of Enterprise Mashups is structured by market
transaction phases similar to electronic markets. The user roles, the necessary processes and the
resulting services are modelled according to the views of the MRM. By means of the SAP Research
RoofTop Marketplace prototype we demonstrate the application of the designed reference model for
grassroots Enterprise Mashups environments
E-Learning and microformats: a learning object harvesting model and a sample application
In order to support interoperability of learning tools and reusability of resources, this paper introduces a framework for harvesting learning objects from web-based content. Therefore, commonly-known web technologies are examined with respect to their suitability for harvesting embedded meta-data. Then, a lightweight application profile and a microformat for learning objects are proposed based on well-known learning object metadata standards. Additionally, we describe a web service which utilizes XSL transformation (GRDDL) to extract learning objects from different web pages, and provide a SQI target as a retrieval facility using a more complex query language called SPARQL. Finally, we outline the applicability of our framework on the basis of a search client employing the new SQI service for searching and retrieving learning objects
First steps towards an integration of a Personal Learning Environment at university level
Ebner, M., Schön, S., Taraghi, B., Drachsler, H., & Tsang, P. (2011). First steps towards an integration of a Personal Learning Environment at university level. In R. Kwan et al. (Eds.), ICT 2011, CCIS 177 (pp. 22–36), Springer-Verlag Berlin: Heidelberg 2011.Personalization is seen as the key approach to handle the plethora of
information in today’s knowledge-based society. It is expected that personalized
teaching and learning will address the needs of the learners more efficiently.
The education of the future will change by the influence of Web 2.0
contents and the steadily increasing amount of data. This means that the students
of tomorrow will regularly have to deal with sharing and merging contents
from different sources. Therefore, mashup technology will become a very
important means to focus on individual learning needs and to personalize the
access to particular information. The following article describes the challenges
of Personal Learning Environments at higher education institutions. In the first
section, the concept of Personal Learning Environments is presented, while the
second section discusses the new challenges that arise for learning with the help
of Personal Learning Environments. The third section of the article describes
the technical background of Personal Learning Environments and the widget
standard in general. In section four, a first prototype of a personal learning environment
will be presented, which is integrated into the Technical University of
Graz. A detailed description of the available widgets for the prototype, along
with a first expert evaluation, will be provided. Finally, the conclusion of the
article will sum up the main points of this paper and present the plans for future
research together with the prospective developments.NeLLL AlterEg
Knowledge Organization Systems (KOS) in the Semantic Web: A Multi-Dimensional Review
Since the Simple Knowledge Organization System (SKOS) specification and its
SKOS eXtension for Labels (SKOS-XL) became formal W3C recommendations in 2009 a
significant number of conventional knowledge organization systems (KOS)
(including thesauri, classification schemes, name authorities, and lists of
codes and terms, produced before the arrival of the ontology-wave) have made
their journeys to join the Semantic Web mainstream. This paper uses "LOD KOS"
as an umbrella term to refer to all of the value vocabularies and lightweight
ontologies within the Semantic Web framework. The paper provides an overview of
what the LOD KOS movement has brought to various communities and users. These
are not limited to the colonies of the value vocabulary constructors and
providers, nor the catalogers and indexers who have a long history of applying
the vocabularies to their products. The LOD dataset producers and LOD service
providers, the information architects and interface designers, and researchers
in sciences and humanities, are also direct beneficiaries of LOD KOS. The paper
examines a set of the collected cases (experimental or in real applications)
and aims to find the usages of LOD KOS in order to share the practices and
ideas among communities and users. Through the viewpoints of a number of
different user groups, the functions of LOD KOS are examined from multiple
dimensions. This paper focuses on the LOD dataset producers, vocabulary
producers, and researchers (as end-users of KOS).Comment: 31 pages, 12 figures, accepted paper in International Journal on
Digital Librarie
Generic Business Model Types for Enterprise Mashup Intermediaries
The huge demand for situational and ad-hoc applications desired by the mass of business end users led to a new kind of Web applications, well-known as Enterprise Mashups. Users with no or limited programming skills are empowered to leverage in a collaborative manner existing Mashup components by combining and reusing company internal and external resources within minutes to new value added applications. Thereby, Enterprise Mashup environments interact as intermediaries to match the supply of providers and demand of consumers. By following the design science approach, we propose an interaction phase model artefact based on market transaction phases to structure required intermediary features. By means of five case studies, we demonstrate the application of the designed model and identify three generic business model types for Enterprise Mashups intermediaries (directory, broker, and marketplace). So far, intermediaries following a real marketplace business model don’t exist in context of Enterprise Mashups and require further research for this emerging paradigm
A Usability Evaluation Framework for
Currently, more than two billions people access the Web for various purposes. The majority are people without programming or modelling background. Part of these people (called end-users) also likes to create their own Web applications to meet their daily needs. Mashup Makers are tools to create such end-user’s Web applications. As such, Mashup Makers could become the dominant environment for end-user development of Web applications. Existing Mashup Makers promise that creating a Web Mashup is very easy and just a matter of a few mouse clicks. However, there is no evidence that this is indeed the case. On the contrary, research has already revealed usability problems with Mashup Makers.
Therefore, this thesis concentrates on the usability of Mashup Makers as development environments for Web applications for end-users. Usability is a key issue for the success of software artifacts, and especially if the artifacts are intended for non-technical users. Therefore, we target the achievement of a consolidated approach, model, and framework for the evaluation of the usability of Mashup Makers for end-users. Such a framework will not only allow evaluating the usability of existing Mashup Makers, but it will also provide key issues concerning usability (ie usability impact factors) that developers of Mashup Makers and of other future end-user development tools can take into consideration when developing new tools
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