MAINTAINING TRACEABILITY LINKS WITH CHA-Q'S MATRACA - PRESENTERS: ANGELA LOZANO, TARS JORIS
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Maintaining Traceability Links with Cha-Q’s MaTraca Presenters: Angela Lozano, Tars Joris
Maintaining Traceability Links
with Cha-Q’s MaTraca
Angela Lozano!
Post-doctoral researcher!
alozanor@vub.ac.be!
twitter: @ang_loza!
!
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAX
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAX
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAX
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash 26.6 million builds
Java applets 9 month
ActiveX controls @ Google
Silverlight !
App. server dependencies =
Web server +50% errors
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAX
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET
cr o ss -
SQL, NoSQL, Files
HTML
d u et o
CSS
b l e m s
Javascript
e p ro n c i e s ?
Flash
r e d u c e n d e
Java applets
l p t o y d e p
w
ActiveX controlse h e n o l o g
C a n
Silverlight t e c h
App. server
f i r st ?
Web server
o l o g y
Content management
t ec h n
system
h i c h
W Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAX
Maintaining Traceability Links
with Cha-Q’s MaTraca
Angela Lozano! Tars Joris!
Post-doctoral researcher! Scrum Master & Development Team Manager!
alozanor@vub.ac.be! tars@email!
twitter: @ang_loza! twitter: @tarsjoris!
! !
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAX
Dependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAXDependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAXDependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAXDependencies across
technologies
Business logic
Storage
C#, Java, VB, PHP, Perl, Python,
Presentation Beans, Servlets, CGI, ASP.NET SQL, NoSQL, Files
HTML
CSS
Javascript
Flash
Java applets
ActiveX controls
Silverlight
App. server
Web server
Content management
system
Replication, security, concurrency, !
distribution, load balancing
Sockets, HTTP, EMail, SMS,
SOAP, REST, Rails, AJAXHow it works?
CHAQ model
.java
java
xml
.xml
o a
G ilityl : .html
Parsing Querying
a p t a b
Ad Eclipse
projectHow it works?
CHAQ model
.java
.xml
o a
G ilityl : .html
Parsing Querying
a p t a b
Ad Eclipse
projectHow it works?
CHAQ Model
Cha-Q model
.java
.xml
Java
o a
G ilityl : .html
Parsing Querying
a p t a b
Ad Eclipse
project
Cha-Q Model?:!
Graph meta-model = querying of all source code entities.How it works?
CHAQ model CHAQ Model
Cha-Q model
.java
.xml
Clojure
o a
G ilityl : .html
Querying
Parsing Querying
Matching
a p t a b
Ad Eclipse
project
Source implementation concerns & Target implementation concerns
Cha-Q Model?:!
Graph meta-model = querying of all source code entities.How it works?
CHAQ
CHAQmodel
model CHAQ Model
Cha-Q model
.java
.xml
Java
o a
G ilityl : .html
Querying
Matching
Parsing Querying
Matching
a p t a b
Ad Eclipse
project
Matching principle
Cha-Q Model?:!
Graph meta-model = querying of all source code entities.How it works?
CHAQ
CHAQmodel
model CHAQ Model
Cha-Q model
.java
java
xml
.xml
o a
G ilityl : .html
Querying
Matching
Parsing Querying
Matching
a p t a b
Ad Eclipse
project
Cha-Q Model?:!
Graph meta-model = querying of all source code entities.Why is it cool?
• Because it is adaptable***!
• E.g., Inventive Designers’ XML-Java error messages:
• source of the traceability link (43 LOC in Clojure)
• target of the traceability link (19 LOC in Clojure)
• matching of source and target (7 LOC in Java)
*** once the entities to represent the other technology are
part of the modelMaTraca’s Features
MaTraca’s Features find all the entities on the source or target concerns
MaTraca’s Features find all the entities on the evaluate compliance in source or target concerns marked links / entities
MaTraca’s Features
find all the entities on the evaluate compliance in
source or target concerns marked links / entities
filter resultsMaTraca’s Features
find all the entities on the evaluate compliance in
source or target concerns marked links / entities
filter results
mark links / entities
of interestMaTraca’s Features
find all the entities on the evaluate compliance in
source or target concerns marked links / entities
filter results
mark links / entities
of interest
jump to entities of interestMaTraca’s Features
find all the entities on the evaluate compliance in
source or target concerns marked links / entities
filter results
mark links / entities
of interest
jump to entities of interest
check matching of parametersMaTraca’s Features
find all the entities on the evaluate compliance in
source or target concerns marked links / entities
filter results
mark links / entities
of interest
identify changes
jump to entities of interest
check matching of parametersSee satisfied and broken links
See satisfied and broken links
See effect of editions on a link
See effect of editions on a link
Compare
See
Update
See
Locate
the
the the
effects
links
entities
the
against
outdated
entity
affected
of
that
the
that
have
parts
links
latest
bythe
the
been
of
link
of
change
latest
interest
the
refers
modified
links
edits
toSee effect of editions on a link
See effect of editions on a link
Verify
See
Edit the
Identify
Update
Check that
updates
links
parameters
edited
withtolinks
broken
parameters
of still
a link
parameters
matchMaTraca to test
• 4 tasks: from the issue repository (total 4 hours)
• 4 developers: (equivalent expertise: d1-d2 & d3-d4)
t1 t2 t3 t4
Baseline dbd dbd dbd dbd
without
d2+d4 d2+d4 d1+d3 d1+d3
Matraca
with
d1+d3 d1+d3 d2+d4 d2+d4
MatracaTasks
Time LOCs! Files
Commits
recorded simplif. simplif.
T1: Added the path of the class to
1 h 30 m 3 24 13
the url of the submissions
T2: Get resource type from
8h 8 69 10
resource server.
T3: Warn user when overwriting
files during upload in workspace 7h 6 20 2
browser.
T4: Refactored method so that it
retrieves workspace URI from 30 m 7 4 5
current configuration.Questions: Features used
e
e tim
of th
ral
r
e
Neve
Once
Seve
Most
Twic
0 1 2 + *
Calculate the links from scratch:
Remember the projects that were previously chosen for a workspace:
Search:
Ignore irrelevant links:
Calculate the links with respect to a baseline:
See parameters of a link:
Jump to the program element:Results: Features used Calculate links from scratch Twice - Several Remember projects chosen Once Search! Twice - Several Ignore relevant links Twice - Several Calculate links w.r.t. baseline Several See parameters Twice - Several Jump to program element Several
Questions: Matraca vs. Tasks
ree
ee
e
disag
agre
isagr
ree
ly ag
what
what
gly d
ral
g
e
e
Stron
Stron
Som
Som
Neut
MaTraCa was useful for the given tasks
MaTraCa found information that I would not have found as quickly without it.
MaTraCa found information that I would not have found at all without it.
Without MaTraCa, it was difficult to perform the tasks.
I would not use MaTraCa even if it were available.
I felt more confident about the effect of my changes when using MaTraCa
MaTraCa helped me to make informed judgmentsQuestions: Matraca vs. Tasks
Results: Matraca vs. Tasks Useful Somewhat agree - Strongly agree Saved time Somewhat agree - Strongly agree Increases confidence Neutral - Somewhat agree Gives hints for informed decisions Neutral - Somewhat agree I am willing to use it! Somewhat disagree - Neutral?? It facilitated the tasks Strongly disagree - Somewhat disagree Helped me to find insights Strongly disagree - Somewhat disagree
Results: Matraca vs. Tasks
Useful Time pressure:
Somewhat 2/4
agree - Strongly agree
I prefer Eclipse: 2 / 4
Saved time Somewhat
Eclipse was agree
enough:- Strongly
1 / 4 agree
!
Increases confidence Neutral - Somewhat agree
"Time is short to find out how to use it
Gives hints for informed decisions best”Neutral - Somewhat agree
"A tool needs to grow on the user. The
I am willing to use it! benefits will become
Somewhat clear
disagree if you use it
- Neutral??
more."
It facilitated the tasks Strongly disagree - Somewhat disagree
Helped me to find insights Strongly disagree - Somewhat disagreeResults: Matraca vs. Tasks
Useful Somewhat agree - Strongly agree
Saved time Somewhat agree - Strongly agree
Increases confidence Neutral - Somewhat agree
Gives hints for informed decisions Neutral - Somewhat agree
I am willing to use it! Somewhat disagree - Neutral??
"Tasks were not fully matched with the
It facilitated the tasks Strongly
intendeddisagree
use-cases- Somewhat
for Matraca”disagree
Helped me to find insights Strongly disagree - Somewhat disagreeResults: Matraca vs. Tasks
Useful Somewhat agree - Strongly agree
Saved time Somewhat agree - Strongly agree
Increases confidence Neutral - Somewhat agree
Gives hints for informed decisions Neutral - Somewhat agree
I am willing to use it! Somewhat disagree - Neutral??
It facilitated the tasks Strongly disagree
“Nice-to-have - Somewhat
feature disagree
but too limited
domain to really save time”
Helped me to find insights Strongly disagree - Somewhat disagree
“It was handy once you knew which web-
services you are interested in. You do
however first have to look for it in the
code.”Overall impression “It certainly helped me to find mistakes or omissions earlier” ! “I think matraca could be a very useful tool, it just needs more polishing” ! “Speed and responsiveness is OK”
Take Away Message
• MaTraca:
• is an Eclipse plugin
• helps developers keeping dependencies across technologies in sync
• better than grep -> no false positives
• better than tests -> the cause instead of the symptoms of the problem
• Currently covers XML and Java but it is extensible to:
• other technologies
• or even to your domain-specific / project-specific dependencies !Thanks to
Inventive Designers
& Tars JorisYou can also read
