Sure, please feel free to do so.

Thanks for sharing the summary article.

From: ppig-discuss@googlegroups.com [mailto:ppig-discuss@googlegroups.com] On 
Behalf Of Brad Myers
Sent: 25 October 2016 16:58
To: ppig-discuss@googlegroups.com
Cc: Brad Myers <b...@cs.cmu.edu>
Subject: FW: [ppig-discuss] Cognitive Dimensions Questionnaire for Evaluating 
API Usability

Y’all may also be interested in the website 
www.apiusability.org<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.apiusability.org&data=02%7C01%7Csteven.clarke%40microsoft.com%7C7ea83fd98c4a47db718308d3fcefbb2d%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636130078988117783&sdata=w5l7d1yS0xzWmUbAYlwAUH7TeZLV7gQ5ARhAP5ksNXk%3D&reserved=0>.
 Steven, can I put your materials on it?
Jeff Stylos and I also recently wrote a summary article about the area:
Brad A. Myers and Jeffrey Stylos, "Improving API Usability", Communications of 
the ACM, vol 59, No. 6, June, 2016, pp. 62-69, [ACM DL Author-ize service] 
Official ACM DL 
entry<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdl.acm.org%2Fauthorize%3FN03391&data=02%7C01%7Csteven.clarke%40microsoft.com%7C7ea83fd98c4a47db718308d3fcefbb2d%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636130078988117783&sdata=gB5VHSVSM3GrMFfO3D3ZM1kCCNmD770K%2F0h5hev0qD4%3D&reserved=0>;
 
html<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fcacm.acm.org%2Fmagazines%2F2016%2F6%2F202645-improving-api-usability%2Ffulltext&data=02%7C01%7Csteven.clarke%40microsoft.com%7C7ea83fd98c4a47db718308d3fcefbb2d%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636130078988117783&sdata=Y3%2BGXLL4WGNt4jaBsYZCdhPiB2GQyMx3IfMV8ZO1fP4%3D&reserved=0>
 or local 
pdf<https://na01.safelinks.protection.outlook.com/?url=http:%2F%2Fwww.cs.cmu.edu%2F~natprog%2Fpapers%2Fp62-myers-CACM-API_Usability.pdf&data=02%7C01%7Csteven.clarke%40microsoft.com%7C7ea83fd98c4a47db718308d3fcefbb2d%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C1%7C636130078988127785&sdata=46F72cO9S5fd%2F2sh9SwrbanhUGM3NwE1VHJ1ksctKdg%3D&reserved=0>.
Brad A. Myers
Professor
Human-Computer Interaction Institute
School of Computer Science
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA  15213-3891
(412) 268-5150
FAX: (412) 268-1266
b...@cs.cmu.edu<mailto:b...@cs.cmu.edu>
http://www.cs.cmu.edu/~bam<https://na01.safelinks.protection.outlook.com/?url=http:%2F%2Fwww.cs.cmu.edu%2F~bam&data=02%7C01%7Csteven.clarke%40microsoft.com%7C7ea83fd98c4a47db718308d3fcefbb2d%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636130078988127785&sdata=AmtvMXnU8sCXgKcjdjUlgCsfWMu9W6ErUsHpbu9veis%3D&reserved=0>




From: 'Steven Clarke' via PPIG Discuss [mailto:ppig-discuss@googlegroups.com]
Sent: Tuesday, October 25, 2016 9:58 AM
To: Chamila Wijayarathna 
<cdwijayarat...@gmail.com<mailto:cdwijayarat...@gmail.com>>; PPIG Discuss 
<ppig-discuss@googlegroups.com<mailto:ppig-discuss@googlegroups.com>>
Subject: RE: [ppig-discuss] Cognitive Dimensions Questionnaire for Evaluating 
API Usability

Hi Chamila,

Here is a copy of the questionnaire I used for evaluating API usability. Bear 
in mind that I reworded some of the cognitive dimensions due to perceptions at 
the time that the original names might not easily interpreted by the teams I 
was working with at Microsoft. This was not backed up by any empirical evidence 
at the time, I did it just based on my experience to the reactions I received 
when I first introduced the cognitive dimensions at Microsoft.

I’ve also attached the ratings sheet we used when interviewing developers using 
this questionnaire. We would plot their responses regarding each of the 
dimensions during the interview on the sheet.

Thanks,

Steven

From: ppig-discuss@googlegroups.com<mailto:ppig-discuss@googlegroups.com> 
[mailto:ppig-discuss@googlegroups.com] On Behalf Of Chamila Wijayarathna
Sent: 25 October 2016 14:30
To: PPIG Discuss 
<ppig-discuss@googlegroups.com<mailto:ppig-discuss@googlegroups.com>>
Subject: [ppig-discuss] Cognitive Dimensions Questionnaire for Evaluating API 
Usability

Hello all,

I am a research student working on improving the usability of security APIs. In 
my research, I am planning to conduct usability evaluation for security APIs 
using the methodology Clarke (2004) described. However, when I searched through 
literature, I could only found parts of the questionnaire, but could not found 
the complete questionnaire.

If there is a generic Cognitive Dimensions based questionnaire for evaluating 
usability of APIs, can someone please point me into that.

Thanks in advance.

Best Regards!
Chamila


  1.  S. Clarke. Measuring api usability. Doctor Dobbs Journal, 29(5):S1-S5, 
2004
  2.  S. Clarke, “Evaluating a new programming language,” in 13th Workshop of 
the Psychology of Programming Interest Group, 2001, pp. 275–289
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