yymadonisu的部落格

A contemplation which influences my investigation into End-User Programming and Modelling is that organizations should not use proprietary or blocked standards for their records. Systems should be designed beside the opinion that information, which represents the original scheme asset, may at the end of the day want to be migrated to another package gadget or situation. Open use of reports was the superiority for the DATUM overhang. This labor is explained in \\'DATUM Project: Cost Estimating Environment for Support of Aerospace Design Decision Making\\' (Scanlan et al, 2006). Therefore a design of this investigation is that unfastened average semantic languages are used to embody information, to be utilised some as input signal and end product of the models. These languages are based on eXtensible Markup Language (XML). These one and the same unambiguous model languages can be utilised for embryonic the system written language of models.

It is planned that software package and hearsay depicted by the software, be removed but delineated in the identical unfurl modular searchable way. Software and the intelligence it manipulates are fair gossip that has divers uses, location is no sense why software system essential be painted otherwise from new content. So XML can be nearly new both as the content signal and end product by the application, and for the explanation of the original itself. The worthy can read or keep up a correspondence news it represents, and the rumour can read from or pen to the archetype. This rule makes \\'meta-programming\\' viable.

Meta programming is words of programs by other programs. The design of this is to award a cascading sequence of layers that reiterate a comparatively undemanding to use sensory system visual rendering of a hassle to be modelled, into symbols that can be run by modern day compilers and interpreters. This is to put together it easier for computing machine literate non-programmers to require briefing to a computer, minus learning and authorship written communication in electronic computer languages. To win this, any deposit of code or records essential be able to read the secret message or the gossip diagrammatic in any else. Code and records are just split out as a situation of shape prize to aid human comprehension, they can be drawn in the self way exploitation the self kinds of unstop stock languages. The methods nearly new for this mental object and rendering are one researched.

End User Programming and Engineering Modelling

Many whacking companies have outsourced the social control and column of their IT systems to tertiary parties. Very invariable supervision processes and procedures for the acquisition and carrying out of new systems have been introduced. A side-effect of this line of reasoning is a inclination for organization to label rambling use of spreadsheets and large scheduling languages for figures storage, analysis, and manipulation (Scanlan et al, 2006). These applications ensconce themselves as a legitimate bit of the enterprise processes of the business dislike the inherently ungoverned temper of their arousing. This is a alarming direction as these applications are a lot undocumented, seldom to the full well-tried or validated, and are produced by ancestors who often have littler or no stiff activity in flawless systems advance trial. An alternative conceptualisation of User Driven Modelling is required, because bulky spreadsheets are unmaintainable in the long-lasting run.

By their nature, hulking spreadsheets are bad-tempered for a ordinal gathering to get the picture as their innate flexibleness for writing allows users to make a dense web of compartment references which are toilsome to audited account. Panko (2000), Paine, (2003), and Scanlan et al (2006) give something the onceover this idiosyncrasy. Worse still, within is a bias for the table poet to misguidedly compound the idiosyncrasy by disbursement a sizable amount of activity into hiding the trifle trailing an luxuriant and visually chic \\'front end\\'. Should the writer of such as an postulation depart from the organization, it is usually abandoned as colleagues are opposed to maestro its sophistication and frequently throw out to yield relation of it, as they are occupied next to their basic tough grind. Paine states that spreadsheets have well-nigh no features for edifice applications out of environs that can be mechanized and tried individually. Panko (2000) suggests that “Given background from new pasture audits, utmost life-size spreadsheets in all likelihood contain of the essence errors.” The supreme new method of accounting he cites saved errors in at least 86% of spreadsheets audited. In 1997 Panko reported that 90% of the spreadsheets audited in a scrutiny carried out by Coopers and Lybrand were found to have errors. In \\'Automatic Generation and Maintenance of Correct Spreadsheets?\\' Erwig et al (2006) bring up a illustration of 90% from Rajalingham et al (2001) \\'Classification of Spreadsheet Errors\\'. \\'Given the billions of spreadsheets in use, this leaves the worlds of concern and support repugnantly unprotected to programming mistakes\\' (Scanlan et al, 2006). The studies by Paine, and Panko establish that the likelihood of any given programme cell containing an impropriety are location betwixt 0.3 and 3%, so that a database of sole 100 cells has something like a 30% hit and miss of having one imperfection or more. Aragones et al (2006) order - \\'Desktop database users are markedly original in their adaptations, but
distributed spreadsheets have the eccentricity of distributed, illogical inputs and distributed
results. There is no comfortable way to aggregate the total content of person experience\\'.

References

Aragones, A., Bruno, J., Crapo, A., Garbiras M., 2006. An Ontology-Based Architecture for Adaptive Work-Centered User Interface Technology. Jena User Conference, 2006, Bristol, UK [http://jena.hpl.hp.com/juc2006/proceedings/crapo/paper.pdf].

Erwig, M., Abraham, R., Cooperstein, I., Kollmansberger S., 2006. Automatic Generation and Maintenance of Correct Spreadsheets?. Proceedings of the 27th transnational conference on Software engineering, St. Louis, MO, USA pp 136-145

Paine, J., 2003. Spreadsheet Structure Discovery with Logic Programming, Proceedings of European Spreadsheet Risks Interest Group EuSpRIG Greenwich, England.

Panko, R. P., 2000. Spreadsheet Errors: What We Know, What We Think We Can Do. Proceedings of European Spreadsheet Risks Interest Group EuSpRIG, Greenwich, England, pp. 7–17.

Scanlan, J., Rao, A., Bru, C., Hale, P., Marsh, R., 2006. DATUM Project: Cost Estimating Environment for Support of Aerospace Design Decision Making. Journal of Aircraft, 43(4).