Thursday, July 26, 2007

Dagstuhl Seminar End-User Software Engineering - Part 2

End-User Software Engineering - Dagstuhl Seminar - Summary - http://www.dagstuhl.de/en/program/calendar/semhp/?semnr=2007081 - PDF Abstracts and links to papers - http://eusesconsortium.org/docs/dagstuhl_2007.pdf - Margaret M. Burnett, Gregor Engels, Brad A. Myers and Gregg Rothermel - From 18.01.07 to 23.02.07, the Dagstuhl Seminar 07081 End-User Software Engineering was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed.

I have been reading this abstracts paper from the Dagstuhl Seminar End-User Software Engineering and it has lots of interesting points to make.

In 'End-User Design' http://drops.dagstuhl.de/opus/frontdoor.php?source_opus=1099 Professor Alexander Repenning of University of Lugano explains the need for enhancements to UML (Unified Modeling Language) to aid end-user programming.

He makes the point that

"Visual programming languages using drag and drop mechanisms as programming approach make it virtually impossible to create syntactic errors."

So -

"With the syntactic challenge being – more or less – out of the way we can focus on the semantic level of end-user programming."

In 'End-User Development Techniques for Enterprise Resource Planning Software Systems' http://drops.dagstuhl.de/opus/frontdoor.php?source_opus=1097 Michael Spahn, Stefan Scheidl, and Todor Stoitsev explain SAP research into End-User Programming, they explain -

"End-users of ERP systems are domain experts but not necessarily IT professionals, limiting their ability to adapt the software by themselves to their own needs and forcing them to indirectly influence the adaptation processes by communicating their needs to IT professionals. Empowering the end-users to adapt the software by themselves is an important step in reducing customization costs and enabling high-quality tailoring of software and working environments to the needs of modern information and knowledge workers."

They explain that users must be empowered to explore, process, and analyse information in a user friendly way, and create and adapt reports and queries. An abstraction layer should ease this by hiding technical details to allow for concentrating on business needs.

In 'End-User Software Engineering and Professional End-User Developers' http://drops.dagstuhl.de/opus/frontdoor.php?source_opus=1095 Judith Segal of the Open University examines issues and problems in Professional end-user development, the author explains -

"These developers are distinguished from other end-user developers in two ways. The first is that, consistent with their being familiar with formal notations and logical scientific reasoning, they tend to have few problems with coding per se. The second is that, as a class, they have a history of developing their own software which long predates the advent of the PC."

In 'End-User Software Engineering Position Paper' http://drops.dagstuhl.de/opus/frontdoor.php?source_opus=1092 by Henry Lieberman of MIT Media Laboratory he asks -

"Why is it so much harder to program a computer than simply to use a computer application? I can't think of any good reason why this is so; we just happen to have a tradition of arcane programming languages and mystically complex software development techniques. We can do much better."

He goes on to explain -

"HCI has amassed an enormous body of knowledge about what makes interfaces easy to use, and this has been applied widely to many computer applications for end users. Oddly, little of this has been applied to making interfaces for programming easier to use. Non-experts tend to believe that programmers practice a kind of voodoo, perceived to be naturally arcane and mysterious. Since they can handle it so well, programmers aren't perceived as needing ease of use. But we all pay the price for this misconception."

Lieberman explains the goal of this research -

"Finally, as much as is possible, we should make this process as automatic as we can, though the use of program transformation, dependency maintenance, automated reasoning, mixed-initiative interfaces, visualization, and machine learning. Otherwise, I think it will be too much overhead for a non-expert user themselves to keep track of the myriad facets that software development entails. If we succeed in this, people will become End-User Software Engineers without their even realizing it."


My home page is http://www.cems.uwe.ac.uk/~phale/.

I have a page on End-User Programming at http://www.cems.uwe.ac.uk/amrc/seeds/EndUserProgramming.htm.

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