NASA Technical Reports Server (NTRS) 20110015607: Function Point Analysis Depot

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by  NASA Technical Reports Server (NTRS)

Function Point Analysis Depot
MunizR.1
UniversityofPuertoRico,Arecibo, Puerto Rico
2
MartinezE.
UniversityofPuertoRico,Arecibo, PuertoRico
S;afranJ.3and DaltonA.4
Control and DataSystemsDivision, EngineeringDirectorate, KennedySpaceCenter, Florida
The Function PointAnalysis(FPA) Depot isa webapplication originally designed by
one of the NE-C3 branch's engineers, Jamie Szafran, and created specifically for the
Software Development team ofthe Launch Control Systems (LCS) project. The application
consistsofevaluatingtheworkofeach developerto beableto geta realestimateofthehours
that isgoing to beassigned to a specifictaskofdevelopmen.t.
The Architect Team had made design change requests for the depot to change the
schema ofthe application's information; that information, changed in the database, needed
to bechanged in thegraphical user interface(GUn (written in Ruby on Rails (RoR» and the
web service/serverside in Java to match the database changes. Thes·e changes were made by
two interns from NE-C, Ricardo Muniz from NE-C3, who made all the schema changes for
the GUI in RoR and Edwin Martinez, from NE-C2, who made all the changes in the Java
side.
Nomenclature
FPA FunctionPointAnalysis
NE-C3 System Software Engineering
NE-C2 Operations&SupportSoftware
NE-C NASAEngineeringControlandDataSystemsDivision
LCS LaunchControl System
GUI Graphical UserInterface
RoR Rubyon Rails, awebapplicationframework for the Ruby language.
Java ageneral-purpose, concurrent, class-based, object-oriented language
1
System SoftwareEngineeringIntern, NE-C3, KennedySpaceCenter,FL.
2
InformationArchitecture Intern, NE-C2, KennedySpaceCenter, FL.
3
EdwinMartinez'sde facto mentorand System SoftwareEngineer,NE-C3, Kennedy
SpaceCenter, FL.
4
Ricardo Muniz'sde facto mentorand InformationArchitectureEngineer,NE-C2,
KennedySpaceCenter,FL.
Introduction
Function PointAnalyses measure how muchworkadeveloperthinks that aparticularfunctionality
might be. Those function points are used to create estimates for labor hours, how long they think it will
take to completethe task from design to implementationto integration and sustaining. Forexample, ifIam
doing atask that Iestimateto have 2 function points, itmighttake me 6 hours total ofwork. Oncethe task
is completed, we can record the actual time ittookto do the task and use thatto improve the estimation for
the next time. IfI have 2 function points and thought it would take me 6 hours but it really took me 8, I
know to adjust the algorithm that generates the estimate so that estimates are a little higher for the next
time.
Description ofproject
During the internship, I worked together with another intern from the Puerto Rico Space Grant
Consortium, Edwin Martinez, who had asimilarassignment, to upgrade the Function PointAnalysis Depot
application to the new 5.1 version. In this version we managed to change the application to the new 5.1
database design in the Rails side and in the Java side. This change contained the new tables development
activities, developers, computer software configuration items, function point analysis versions and actuals,
which isanamechangeforthe oldtable points.
Sign in page
DA's YouneedtosignInorsignupbeforecontinuing.
CSCI's Sign in
FPA's
Usemame
ModelPackages
Analysis Password
o
Rememberme
Fagotyourpa$sword7
SignInPagecreatesasessiontousetheapplication.
When entering the URL, ifyou are not signed in, it will take you to the sign-in page. This login
session will only recognize users who have access to the application. The sidebar appears in the sign in
page, but is disabled until the user is signed in. When the sign-in is successful, itwill take you to the home
page.
Home Page
SignedInastUsemame.Notyou?~
DA's Signedinsuccesslulty.
CSCI's
WelcometotheFunctionPolnlDepotapplication.Pleaseseleclacategory.
FPA's
ModelPackages
Analysis
The first page, as all the other pages, contains a sidebarwhich lets you choose which infonnation
you'd like to see. The first option is the list ofall Development Activities, also known as DA's, which
shows all the current projects that are on development. The second option is the list of all Computer
SoftwareConfiguration Items, also known as CSCls, which shows all the different groups that are working
on development activities. The third option is the list ofall the Function PointAnalyses, known as FPAs,
and shows all the function pointestimates ofeach single partofcodefrom a specific developer. The fourth
option is Model Packages, which shows groupings of function points to be used with labour-hour
estimation.. The fifth and lastoption isAnalysis, whichare the estimates and the best-fittings for the model
packages and the actuals. There is also a sign-out link, which will destroy the current user session and
redirectthe userto thesign inpage.
DevelopmentActivitiesShowPage
FPA Depot v5.1
SignedInastUsemame.Notyou?SiIDJ...QYl
ShowDA
DA's
CSCI's ID:2
FPA's Number:661234423
ModelPackages Name:FPADepotApp
Analysis CSCI's:
• CSCll
• Iu1IJul
.~
The DevelopmentActivities show page is used when selecting a DA. Itshows the 10, the number
ofthe DA(used for internalrecordingpurposes), the name ofthe DAand alistofall the CSClsassigned to
thatspecific DA.
ComputerSoftwareConfiguration ItemShow Page
SignedInastUsemame.Notyou?~
ShowCSCI
DA's
CSCI's ID:4
FPA's Name:CSCI 1
ModelPackages WeightedTotal: 1
Analysis DA:FPADepotApp
Developers:
• B.J.W
• Edwin
• JA!!I
• AIHm
EdillCreateaOeve!operllndex
When selectinga CSCI, the user is taken to the CSCI show page. CSCI page has the 10, the name
of the CSCI, the total weighted function point count (which measures the weighted complexity of the
software),the DAsassignedtothatCSCI, andthe developers whobelongto thatCSCI.
DeveloperShowPage
FPA Depot v5.1
SignedInastUsemame.Notyou?S1Qn...Q.Ul
Show Developer
DA's
CSCI's ID:3
FPA's Name:Ricky
ModelPackages Username: rmunlzro
Analysis CSCI:Testing
FPA's:
•ilU""ftfJ
• EEA.1l!
• FPA5
The developer show page is rendered when the user selects a developer from the CSCI. Some of
thefields arethe lD, the name, the usemame, the CSCIto which thatdeveloperbelongs, andthe FPAs from
thatdeveloper.
Function PointAnalysisShowPage
SignedInastUsemame.Notyou?Signout
Show Function Point Analysis
DA's
CSCI's
ID:2
FPA's Name:FPA10
ModelPackages CreationTime:2011-07-2715:23:07.78
Analysis Requirement:testing
Granularity:low-f1
Developer:Ricky
FPAVersions:
• 2011·07·2813:38:39.1
EditICreateanFPAVersionI[ndex
The FPAshow page can be accessed by selectingan FPAfrom adeveloperor by selecting an FPA
from the FPA index page (in the sidebar). Some fields for FPA are the 10, the name, a creation time, the
requirements, ifany, agranularity, whichhastwo options(Iow-fiand hi-fi), the developerfrom thatspecific
FPAand all the versionsofthatFPAorganizedbydate.
FunctionPointAnalysis Versions ShowPage
FPA Depot v5.1 The FPA Version show page
shows an 10, a notes field, the time and
S~dinaslJ5emam~Notyou?~ date that the FPA Version was created, the
DevActivities ShowFPAVersion specific FPA to which the FPA Version
CSCI's 10:1 belongs, and the subfields of that FPA in
Developers Not":FpaVuslon1 that specific version. The subfields are
FPA's Tlm....mp:2011·07·2813:38:39.1 External Inputs, External Outputs, External
FPAVersions rPA:rPA10 Inquiries, Internal Logical Files and
Aetuals External Interface Files. Each of these
I I ~~,I~k
MAnoadly"siPsackage. 11.&..............-..,.. 11·...,..·-1-n,M""..-.,·1I 1ff1ll"11"r.r11-rr sSuobmfieeldsofhasthseusbefieladrse toInbpeutcomScprleeetends.,
IbIrr"'."" IHAr.........
ManageUs... 1-...- la-tls-..... fl"r.-r Interactive Inputs, Hardware Inputs, Batch
1.......-.· rrr Stream Inputs, Media Outputs, Software
11..."-"-,--- fl"r.-r
1.......-- INl6oO'.... fl"r.-r Outputs, and Hardware Outputs. The
1.......- fl"r.-Il"' quantity and the complexity of each
11I.....................--~..--.. 11II......~...-.~---- rflr".r-rr assignment can be evaluated with the
Ib...... 1- 'rr.-r Simple, Average and Complex fields.. This
IIl..1B rfl'r
I.......~- 1""-'-.... is one of the most important parts of the
rr.-r
I-"'~"" I..........._··_..
I................. rr.-r project and is the way to evaluate each
I1...1lf........F1II :10....... fl"r.-r piece ofcode from each piece ofsoftware
1.h..w....M....~.n.8..r.1F.I.a J--No-" r.rll"' that is beingdeveloped.
I.........,..""'-....ll~o- r~
1......._ ...·1-- [1l~
I~......-,-nsl'-"Da-.'" 'fl",r.-lr
· ..
Results
We accomplished our assignment to have an application which can manage the new Function
PointAnalysis Depot schema. We added basic log-in functionality for the users that are allowed to use the
application. We also added the new classes needed forthe new schema. Ithinkthat we did agoodjobfor a
ten weekperiod internship.
Conclusion
This projecthelped me in the understandingofhow applications communicate each other through
XML. It also helped me on developing my programming skills in the Ruby on Rails and Java languages.
The most important, with this project I managed to see how is to work in a real project and also learned
how importantand advantageousteamwork is inNASA.