discuss: HCI HOWTO
Subject:
HCI HOWTO
From:
Ethan Glasser-Camp ####@####.####
Date:
15 Jun 2004 19:44:48 -0000
Message-Id: <20040615193836.GC569@paladin>
My name is Ethan Glasser-Camp, and I'm a Computer Science and
Psychology undergraduate at Rensselaer Polytechnic Institute. I would
like to write a HOWTO about HCI (human-computer interaction),
specifically HID (human interface design). Interface design has
traditionally been a weak point of Linux programmers. This proposed
document would cover two techniques to analyze interfaces -- GOMS
(specifically KLM-GOMS), for analyzing the speed with which an expert
user uses an interface, and the cognitive walkthrough, used to assess
the learnability of an interface. It will also cover a list of
resources for people who are trying to learn heuristics for HID.
There exist many good pages on HID already. Among these are:
GNOME Human Interface Guidelines (http://developer.gnome.org/projects/gup/hig/)
Apple HIG (http://developer.apple.com/documentation/UserExperience/Conceptual/OSXHIGuidelines/index.html)
MS Guidelines for UI Developers and Designers (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwue/html/welcome.asp)
IBM SAA Common User Interface (http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/Shelves/CEESL002)
While all of these are good resources for reading, especially for the use of someone who is designing for one of those environments, readings for the cognitive walkthrough and KLM-GOMS are less plentiful. A goal of this document is to give an example of both techniques, and also to locate these documents in a place Linux programmers will see it. Another goal is to explain these techniques with the psychology/human factors background necessary to understand them.
Documents concerning the cognitive walkthrough can be found here:
http://www.pages.drexel.edu/~zwz22/CognWalk.htm
http://www.cc.gatech.edu/computing/classes/cs3302/documents/cog.walk.html
http://www.acm.org/sigchi/chi95/proceedings/tutors/jr_bdy.htm
A document concerning KLM-GOMS can be found here:
http://www.cc.gatech.edu/classes/cs6751_97_fall/projects/closet2000+/FinalEssays/goms.html
Do you think the LDP would have use for such a document?
Ethan Glasser-Camp
--> -->
<type 'exceptions.IOError'> | Python 2.5.2: /usr/bin/python
Mon Jul 8 07:18:05 2024 |
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
| /opt/ezmlm-browse-0.20/main.py in main() |
424
|
425 if path is not None:
|
426 main_path(path)
|
427 else:
|
428 main_form()
|
| global main_form = <function main_form at 0x9cb0c6c> |
| /opt/ezmlm-browse-0.20/main.py in main_form() |
378 except ImportError:
|
379 die(ctxt, "Invalid command")
|
380 module.do(ctxt)
|
381
|
382 def main():
|
| module = <module 'commands.showmsg' from '/opt/ezmlm-browse-0.20/commands/showmsg.pyc'>, module.do = <function do at 0x9cb99cc>, global ctxt = {'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'} |
| /opt/ezmlm-browse-0.20/commands/showmsg.py in do(ctxt={'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}) |
18 write(html('msg-pager') % ctxt)
|
19 write('<hr>')
|
20 sub_showmsg(ctxt, ctxt[MSGNUM])
|
21 write('<hr>')
|
22 write(html('msg-pager') % ctxt)
|
| global sub_showmsg = <function sub_showmsg at 0x9cb01ec>, ctxt = {'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, global MSGNUM = 'msgnum' |
| /opt/ezmlm-browse-0.20/globalfns.py in sub_showmsg(ctxt={'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, msgnum=7443) |
229 format_timestamp(ctxt, ctxt)
|
230 write(html('msg-header') % ctxt)
|
231 rec_showpart(ctxt, msg, 0)
|
232 write(html('msg-footer') % ctxt)
|
233 ctxt.pop()
|
| global rec_showpart = <function rec_showpart at 0x9cb01b4>, ctxt = {'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, msg = <email.message.Message instance at 0x9d0dd0c> |
| /opt/ezmlm-browse-0.20/globalfns.py in rec_showpart(ctxt={'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, part=<email.message.Message instance at 0x9d0dd0c>, partnum=1) |
205 else:
|
206 for p in part.get_payload():
|
207 partnum = rec_showpart(ctxt, p, partnum+1)
|
208 else:
|
209 write(html('msg-sep') % ctxt)
|
| partnum = 1, global rec_showpart = <function rec_showpart at 0x9cb01b4>, ctxt = {'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, p = <email.message.Message instance at 0x9d1526c> |
| /opt/ezmlm-browse-0.20/globalfns.py in rec_showpart(ctxt={'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, part=<email.message.Message instance at 0x9d1526c>, partnum=2) |
208 else:
|
209 write(html('msg-sep') % ctxt)
|
210 sub_showpart(ctxt, part)
|
211 return partnum
|
212
|
| global sub_showpart = <function sub_showpart at 0x9cb0144>, ctxt = {'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, part = <email.message.Message instance at 0x9d1526c> |
| /opt/ezmlm-browse-0.20/globalfns.py in sub_showpart(ctxt={'cmd': 'showmsg', 'threadidx': 0, 'HTTP_X_FORWA...HTTP_ACCEPT_ENCODING': 'gzip, br, zstd, deflate'}, part=<email.message.Message instance at 0x9d1526c>) |
164 type = ctxt[TYPE] = part.get_content_type()
|
165 ctxt[FILENAME] = part.get_filename()
|
166 template = html('msg-' + type.replace('/', '-'))
|
167 if not template:
|
168 template = html('msg-' + type[:type.find('/')])
|
| global template = <function template at 0x9ca8e9c>, global html = <function html at 0x9ca8ed4>, type = 'application/pgp-signature', type.replace = <built-in method replace of str object at 0x9d16100> |
| /opt/ezmlm-browse-0.20/globalfns.py in html(name='msg-application-pgp-signature') |
40
|
41 def html(name):
|
42 return template(name + '.html')
|
43
|
44 def xml(name):
|
| global template = <function template at 0x9ca8e9c>, name = 'msg-application-pgp-signature' |
| /opt/ezmlm-browse-0.20/globalfns.py in template(filename='msg-application-pgp-signature.html') |
31 except IOError:
|
32 if not _template_zipfile:
|
33 _template_zipfile = zipfile.ZipFile(sys.argv[0])
|
34 try:
|
35 f = _template_zipfile.open(n).read()
|
| global _template_zipfile = None, global zipfile = <module 'zipfile' from '/usr/lib/python2.5/zipfile.pyc'>, zipfile.ZipFile = <class zipfile.ZipFile at 0x9c41a7c>, global sys = <module 'sys' (built-in)>, sys.argv = ['-c', '/opt/ezmlm-browse-0.20'] |
| /usr/lib/python2.5/zipfile.py in __init__(self=<zipfile.ZipFile instance at 0x9cbca4c>, file='-c', mode='r', compression=0, allowZip64=False) |
337 self.filename = file
|
338 modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
|
339 self.fp = open(file, modeDict[mode])
|
340 else:
|
341 self._filePassed = 1
|
| self = <zipfile.ZipFile instance at 0x9cbca4c>, self.fp = None, builtin open = <built-in function open>, file = '-c', modeDict = {'a': 'r+b', 'r': 'rb', 'w': 'wb'}, mode = 'r' |
<type 'exceptions.IOError'>: [Errno 2] No such file or directory: '-c'
args =
(2, 'No such file or directory')
errno =
2
filename =
'-c'
message =
''
strerror =
'No such file or directory'
