Structured Languages
It is possible to create an extra layer to enable users to specify commands in structured language. This approach of adding extra layers is the way visual programming works. Users provide the information the program needs at the visual interface layer and program code is created automatically. The layers provide the bridge between abstract ideas and computer code. If this approach is taken to its logical conclusion, we could allow the user to specify what the computer should do. Then each layer would communicate this to the layer below until the computer performs the action required. A simple example of this approach is the use of spreadsheets. A user can specify a calculation in mathematical terms using a formula. The spreadsheet then calculates the result of the formula. The user can change the formula if it is incorrect without any need to write code or re-compile. This accounts for the popularity of spreadsheets. However, spreadsheets do not provide the centralised and structured data-store required for a distributed system. Such systems can be made much more powerful if the information is codified into a relational database structure. Then On-Line Analytical Processing (OLAP) can be used for more sophisticated data collection and analysis. Lau et al. (2001) explain how OLAP displays a multi-dimensional view of aggregated data, and presents a Rule-Based Analytical Processing (RBOLAP) model which can be used for decision support. The use of RBOLAP techniques is demonstrated using a case study on a mould and die information network.
Sutton (2001) and Huber (2001) illustrate how codifying knowledge into a knowledge based system for decision support is likely to be very difficult. Most people 'just do' a task and therefore never write down instructions for others. This highlights the difficulty of getting information into a knowledge base when it may be either only in individuals' minds, or completely unstructured.
Information is scattered within organisations and often not held in such a structured way as to be easily accessed by employees or software. This problem was examined by Lau et al (2005) using the example of McDonnell Douglas (now part of Boeing), that demonstrated how difficult it is to gather unstructured knowledge. Therefore, it is important that research is undertaken into methods of capturing, structuring, distributing, analysing, and visualising information.
References
Borthick, A. F., Bowen, P. L., Donald, R. J., Micauel, H. K. T., 2001. The effects of information request ambiguity and construct incongruence on query development. Decision Support Systems Vol 32 pp 3-25.
Huber, G. P., 2001, Transfer of knowledge in knowledge management systems: unexplored issues and suggested studies. European Journal of Information Systems, Vol 10 pp 80-88.
Lau, H. C. W., Bing, J., Lee, W. B., Kau, K. H., 2001. Development of an intelligent data-mining system for a dispersed manufacturing network. Expert Systems Vol 18(4).
Lau, H. C. W., Ning, A., Pun, K. F., Chin, K. S., Ip, W. H., 2005. A knowledge-based system to support procurement decision. Journal of Knowledge Management, 9(1), pp 87-100.
Sutton, D. C., 2001, What is knowledge and can it be managed?. European Journal of Information Systems, Vol 10 pp 72-79.
Related Tags: software, programming, modelling, structured languages, end-user programming, olap, decision support
I am a Researcher in the final year of my PhD. I specialise in applying Semantic Web techniques. My current research is on a technique of 'User Driven Modelling/Programming'. My intention is to enable non-programmers to create software from a user interface that allows them to model a particular problem or scenario. This involves a user entering information visually in the form of a tree diagram. I am attempting to develop ways of automatically translating this information into program code in a variety of computer languages. This is very important and useful for many employees that have insufficient time to learn programming languages. I am looking to research visualisation, and visualisation techniques to create a human computer interface that allows non experts to create software.
I am a member of the Institute for End User Computing (IEUC).
My Home Page is http://www.cems.uwe.ac.uk/~phale/
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