Re: Alte, einfache Simulationssoftware gesucht (aehnlich KSimus aber Win)

Ralf-Rainer Ploog wrote:

ATANUA scheint mir für Deinen Zweck auch gut zu sein.

Die Beschreibung fand ich sehr interessant zu lesen:
http://sol.gfxile.net/files/atanua080326.pdf

Für Lehrer ist sicher auch dieser Abschnitt aufschlußreich [:-)]:
"6 Homework Validation Tool
There was one unexpected request from the teachers after the
first versions of Atanua were in testing. Several teachers
requested some way of detecting whether students were
copying homework from each other, and submitting it as their
own. Even though making such a system foolproof was
impossible, some kind of implementation was clearly still
desirable.
The only way to make such a tool work would be to require
constant network connection and to keep remote copies of
everything. This was, however, not feasible.
Instead, a simple validation scheme was implemented, based on
saving timestamps of actions in the save file.
By analyzing these time stamps, as well as components used, it
is possible to give a fairly accurate analysis on how
identical different save files are. As an additional side
effect, the approximate time that was spent working on a
circuit can be estimated.
It would be simple to expand this mechanism by using stronger
hashing algorithms, encrypt the design files, store the undo
data, etc, but none of these approaches would seriously
increase the difficulty of ?hacking? the design files, since
the users have access to the tool which creates the files. On
the other hand, doing any of the above would have negative
side effects.
While the system is relatively simple, hacking it would most
likely require more knowledge and effort than simply doing the
homework. Additionally, people interested in hacking the
validation system are most likely the ones who are also
interested in the subject, and thus not likely to try to
cheat. In order to reduce the chances of cheating, the
analysis tool and further details are only available to
teachers and only on request.
Grüße,
H.



.

Relevant Pages

  • Best Practices - Xml document validation
    ... for accomplishing xml validation. ... publish schemas detailing the contents and constraints of these requests. ... applicant information to be present when the request is submitted for those ... Individual customers making these requests might ...
    (microsoft.public.dotnet.xml)
  • How to raise a server-side event asynchronously?
    ... Actually this framework will allow field-based validation without using ... txtLastName) and 2 dropdownlists ... Let's assume that the tab order of these controls is txtFirstName, ... An ajax request goes to server side and runs the associated TextChanged ...
    (microsoft.public.dotnet.framework.aspnet)
  • McAfee Woes (and serious lack of Customer Care)
    ... be sure that the press folks at mcafee find out. ... Subject: Request for:Support Validation ... Love that customer care. ...
    (microsoft.public.security)
  • RE: ValidateRequest customization
    ... the above approaches only utilize the built-in validation code ... Turn all request validation on the whole page request, ... can use validation control to validate TextBox controls. ... This posting is provided "AS IS" with no warranties, and confers no rights. ...
    (microsoft.public.dotnet.framework.aspnet)
  • Well-orderings of infinite cardinals
    ... I posted a request for help wit the following exercise ... The trick is to first post a request for ... make a permanent record of the answer to possible homework in a grad set ...
    (sci.math)