97,856 research outputs found
Distributed-Pair Programming can work well and is not just Distributed Pair-Programming
Background: Distributed Pair Programming can be performed via screensharing
or via a distributed IDE. The latter offers the freedom of concurrent editing
(which may be helpful or damaging) and has even more awareness deficits than
screen sharing. Objective: Characterize how competent distributed pair
programmers may handle this additional freedom and these additional awareness
deficits and characterize the impacts on the pair programming process. Method:
A revelatory case study, based on direct observation of a single, highly
competent distributed pair of industrial software developers during a 3-day
collaboration. We use recordings of these sessions and conceptualize the
phenomena seen. Results: 1. Skilled pairs may bridge the awareness deficits
without visible obstruction of the overall process. 2. Skilled pairs may use
the additional editing freedom in a useful limited fashion, resulting in
potentially better fluency of the process than local pair programming.
Conclusion: When applied skillfully in an appropriate context, distributed-pair
programming can (not will!) work at least as well as local pair programming
Using Links to prototype a Database Wiki
Both relational databases and wikis have strengths that make them attractive for use in collaborative applications. In the last decade, database-backed Web applications have been used extensively to develop valuable shared biological references called curated databases. Databases offer many advantages such as scalability, query optimization and concurrency control, but are not easy to use and lack other features needed for collaboration. Wikis have become very popular for early-stage biocuration projects because they are easy to use, encourage sharing and collaboration, and provide built-in support for archiving, history-tracking and annotation. However, curation projects often outgrow the limited capabilities of wikis for structuring and efficiently querying data at scale, necessitating a painful phase transition to a database-backed Web application. We perceive a need for a new class of general-purpose system, which we call a Database Wiki, that combines flexible wiki-like support for collaboration with robust database-like capabilities for structuring and querying data. This paper presents DBWiki, a design prototype for such a system written in the Web programming language Links. We present the architecture, typical use, and wiki markup language design for DBWiki and discuss features of Links that provided unique advantages for rapid Web/database application prototyping
Comparative Study on Agile software development methodologies
Today-s business environment is very much dynamic, and organisations are
constantly changing their software requirements to adjust with new environment.
They also demand for fast delivery of software products as well as for
accepting changing requirements. In this aspect, traditional plan-driven
developments fail to meet up these requirements. Though traditional software
development methodologies, such as life cycle-based structured and object
oriented approaches, continue to dominate the systems development few decades
and much research has done in traditional methodologies, Agile software
development brings its own set of novel challenges that must be addressed to
satisfy the customer through early and continuous delivery of the valuable
software. It is a set of software development methods based on iterative and
incremental development process, where requirements and development evolve
through collaboration between self-organizing, cross-functional teams that
allows rapid delivery of high quality software to meet customer needs and also
accommodate changes in the requirements. In this paper, we significantly
identify and describe the major factors, that Agile development approach
improves software development process to meet the rapid changing business
environments. We also provide a brief comparison of agile development
methodologies with traditional systems development methodologies, and discuss
current state of adopting agile methodologies. We speculate that from the need
to satisfy the customer through early and continuous delivery of the valuable
software, Agile software development is emerged as an alternative to
traditional plan-based software development methods. The purpose of this paper,
is to provide an in-depth understanding, the major benefits of agile
development approach to software development industry, as well as provide a
comparison study report of ASDM over TSDM.Comment: 25 pages, 25 images, 86 references used, with authors biographie
Learning Dimensions: Lessons from Field Studies
In this paper, we describe work to investigate the creation of engaging programming learning experiences. Background research informed the design of four fieldwork studies involving a range of age groups to explore how programming tasks could best be framed to motivate learners. Our empirical findings from these four studies, described here, contributed to the design of a set of programming "Learning Dimensions" (LDs). The LDs provide educators with insights to support key design decisions for the creation of engaging programming learning experiences. This paper describes the background to the identification of these LDs and how they could address the design and delivery of highly engaging programming learning tasks. A web application has been authored to support educators in the application of the LDs to their lesson design
Against the ânetworked information economyâ: rethinking decentralization, community, and free software development
No description supplie
Independent Evaluation of the Jim Joseph Foundation's Education Initiative Year 4 Report
Research indicates that well-prepared educators help produce strong learning outcomes for students. For the continued health of Jewish education, higher education institutions should have the capacity to prepare sufficient numbers of highly qualified educators and education leaders for careers in Jewish education. Teachers, division heads, and school heads represent a substantial segment of the educator population in Jewish day schools. More than 5,000 educators enter new positions in Jewish day schools every year and are in need of adequate preparation. The most frequent obstacle to instructional quality in Jewish day schools is the difficulty in recruiting qualified teachers (Ben-Avie & Kress, 2006; Jewish Education Service of North America, 2008; Kidron et al., in press; Krakowski, 2011; Sales, 2007).A similar problem has been observed in supplementary schools in congregational or communal settings. These schools enroll the majority of Jewish children and adolescents receiving a Jewish education in the United States (Wertheimer, 2008). In recent years, congregations have begun to replace traditional educational programs with new approaches that aim to raise the quality of instruction and the level of parent and student satisfaction relative to their programs. These new approaches may include greater integration of experiential Jewish education and community service, family learning, and the integration of all aspects of congregational learning under the leadership of one director (Rechtschaffen, 2011; Sales, Samuel, Koren, & Shain, 2010). High-quality programs that are updated or reconstructed across time to meet the needs of the Jewish community require well-prepared directors and educators. However, many directors and educators in congregational schools have not participated in teacher preparation programs, and the depth of Jewish content knowledge among these teachers is highly variable (Stodolsky, Dorph, & Rosov, 2008)
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