Communicating, learning and the in-between: a study of the impact of open-access, informal online learning environments

1. The broad aim of this project has been to contribute understandings of the uses of computer-mediated communication in 'informal' (not leading to certification) yet institutionally-hosted online spaces. The project consisted of an investigation into engagement with communication and discussion tools provided by OpenLearn, the Open University's Open Content Initiative (http://www.open.ac.uk/openlearn). 2. The research focused on a selection of examples of asynchronous and synchronous communication situations within OpenLearn, including a selection of forums from the LearningSpace (http://openlearn.open.ac.uk) and various instances of synchronous communication using FM (FlashMeeting) that took place within the context of two pilot studies organised by the researcher in coordination with discipline-based colleagues. 3. Whilst the research was based on an action research orientation, the approach was predominantly exploratory and ethnographic methods (observation and participant observation) were used, complemented with semi-structured interviews, as appropriate. Thematic analysis was used within a grounded theory approach. 4. The study suggests 5 themes as core elements of engagement in CMC within an OER context: 'validation�; 'privacy�; 'trust�; 'purposefulness�; 'leadership'. The themes are mutually-dependent and each warrants more detailed investigation, and relevant topics are discussed. 5. In short, the study provides a contribution to enquiries on the impact of OERs in that it brings to light, from within a sample of learning situations across the 'informal�/�formal' space, a number of boundary issues concerning curriculum and, in particular, pedagogy. It suggests that a major aspect of the impact of OERs is that their availability is not only creating new challenges but also uncovering previously veiled tensions and questions regarding identity and boundaries. 6. A number of outputs have been generated, including two new projects that capitalise on understandings facilitated during the pilots carried out within the remit of this study

OBOME - Ontology based opinion mining in UBIPOL

Ontologies have a special role in the UBIPOL system, they help to structure the policy related context, provide conceptualization for policy domain and use in the opinion mining process. In this work we presented a system called Ontology Based Opinion Mining Engine (OBOME) for analyzing a domain-specific opinion corpus by first assisting the user with the creation of a domain ontology from the corpus. We determined the polarity of opinion on the various domain aspects. In the former step, the policy domain aspect has are identified (namely which policy category is represented by the concept). This identification is supported by the policy modelling ontology, which describe the most important policy – related classes and structure. Then the most informative documents from the corpus are extracted and asked the user to create a set of aspects and related keywords using these documents. In the latter step, we used the corpus specific ontology to model the domain and extracted aspect-polarity associations using grammatical dependencies between words. Later, summarized results are shown to the user to analyze and store. Finally, in an offline process policy modeling ontology is updated

Aspect-Oriented Programming

Aspect-oriented programming is a promising idea that can improve the quality of software by reduce the problem of code tangling and improving the separation of concerns. At ECOOP'97, the first AOP workshop brought together a number of researchers interested in aspect-orientation. At ECOOP'98, during the second AOP workshop the participants reported on progress in some research topics and raised more issues that were further discussed. \ud \ud This year, the ideas and concepts of AOP have been spread and adopted more widely, and, accordingly, the workshop received many submissions covering areas from design and application of aspects to design and implementation of aspect languages

An ontology of agile aspect oriented software development

Both agile methods and aspect oriented programming (AOP) have emerged in recent years as new paradigms in software development. Both promise to free the process of building software systems from some of the constraints of more traditional approaches. As a software engineering approach on the one hand, and a software development tool on the other, there is the potential for them to be used in conjunction. However, thus far, there has been little interplay between the two. Nevertheless, there is some evidence that there may be untapped synergies that may be exploited, if the appropriate approach is taken to integrating AOP with agile methods. This paper takes an ontological approach to supporting this integration, proposing ontology enabled development based on an analysis of existing ontologies of aspect oriented programming, a proposed ontology of agile methods, and a derived ontology of agile aspect oriented development

The grounded theory alternative in business network research

This paper presents a brief outline of the defining characteristics of grounded theory methodology. Such a focus was motivated by a desire to bring the methodology into clearer focus. Particular attention is paid to the debate grounded theory has engendered. In doing so, a number of misunderstandings, dilemmas and criticisms are highlighted. Thus, while one research strategy should not be emphasised to the exclusion of others, this paper advocates the use of grounded theory methodology as a fresh approach in addressing some of the research challenges associated with network studies

Quality-aware model-driven service engineering

Service engineering and service-oriented architecture as an integration and platform technology is a recent approach to software systems integration. Quality aspects ranging from interoperability to maintainability to performance are of central importance for the integration of heterogeneous, distributed service-based systems. Architecture models can substantially influence quality attributes of the implemented software systems. Besides the benefits of explicit architectures on maintainability and reuse, architectural constraints such as styles, reference architectures and architectural patterns can influence observable software properties such as performance. Empirical performance evaluation is a process of measuring and evaluating the performance of implemented software. We present an approach for addressing the quality of services and service-based systems at the model-level in the context of model-driven service engineering. The focus on architecture-level models is a consequence of the black-box character of services

Early aspects: aspect-oriented requirements engineering and architecture design

This paper reports on the third Early Aspects: Aspect-Oriented Requirements Engineering and Architecture Design Workshop, which has been held in Lancaster, UK, on March 21, 2004. The workshop included a presentation session and working sessions in which the particular topics on early aspects were discussed. The primary goal of the workshop was to focus on challenges to defining methodical software development processes for aspects from early on in the software life cycle and explore the potential of proposed methods and techniques to scale up to industrial applications

Symmetry Reduction Enables Model Checking of More Complex Emergent Behaviours of Swarm Navigation Algorithms

The emergent global behaviours of robotic swarms are important to achieve their navigation task goals. These emergent behaviours can be verified to assess their correctness, through techniques like model checking. Model checking exhaustively explores all possible behaviours, based on a discrete model of the system, such as a swarm in a grid. A common problem in model checking is the state-space explosion that arises when the states of the model are numerous. We propose a novel implementation of symmetry reduction, in the form of encoding navigation algorithms relatively with respect to a reference, based on the symmetrical properties of swarms in grids. We applied the relative encoding to a swarm navigation algorithm, Alpha, modelled for the NuSMV model checker. A comparison of the state-space and verification results with an absolute (or global) and a relative encoding of the Alpha algorithm highlights the advantages of our approach, allowing model checking larger grid sizes and number of robots, and consequently, verifying more complex emergent behaviours. For example, a property was verified for a grid with 3 robots and a maximum allowed size of 8x8 cells in a global encoding, whereas this size was increased to 16x16 using a relative encoding. Also, the time to verify a property for a swarm of 3 robots in a 6x6 grid was reduced from almost 10 hours to only 7 minutes. Our approach is transferable to other swarm navigation algorithms.Comment: Accepted for presentation in Towards Autonomous Robotic Systems (TAROS) 2015, Liverpool, U

Learning From Difference: Comparing Child Welfare Systems

Child welfare and child protection are integral aspects of the welfare regimes of all post-industrial societies. However, although the needs of children and the dangers of child abuse are so widely acknowledged, the ways in which these needs and risks are met varies considerably, even between countries with similar structures. By studying the ways in which other countries deal with similar problems, we can learn about new ways of responding and may find ideas that we can adapt for use in our own context. But we can do much more than this. By looking at differences, and using the power of making comparisons, we can begin to understand more about our own system and why it has developed as it has. We can begin to identify the ‘taken-for-granted’. This may lead us to question some of the assumptions on which our system rests and to become more aware of the aspects of our system that we value most highly. As we become more aware of the reasons why our system has developed as it has, positive changes may become more attainable