General Image Compare

Software Engineering Course 2008-2009

http://gic09.pbworks.com/

Course Name: Software EngineeringYear: 2008-9Teachers names: Dr. Shmuel Tyszberowicz , Mr. Eyal Ben-Ari Project Name: GIC – General Image Compare

Members :e-mail Role/s Name #

amirwayn@gmail.com Requirements managerSQA manager

Amir Wayn 1

akiva2511@gmail.com Team leader Software configuration manager Tests manager

Akiva Elkayam 2

shani7783@gmail.com Design manager Implementation manager

Shani Hazan 3

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ContentsProject DescriptionRequirements : in / out of scopeHigh Level DesignMethodologyTestingTeam effortLessons LearnedDemo Q&A

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Project DescriptionDesign and develop a general tool that

compares between two images (or more), find and highlight differences.

Gallery Management (images, history).Many possible uses.

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GIC scope (1)

GeneralFree Open SourceWeb site

Feature setCompare between tw0 pictures (jpg, bmp,

etc..).Highlight differences.

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GIC scope (2)

Feature set cont’ :Gallery – arrange all your picture Comparisons history.Gallery operations – manage, delete, compare,

save and restore changes.

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GIC– out of scopeSupport in camera raw image format.Reports – List of differencesDesktop applicationWeb service API for 3rd party tools(Real) Application that use this engine.Differences analysis.Integration with configuration

management tools.Integration with more compare models.

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Architecture / HLD

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GUI Layer GalleryGUI

ComparisonGUI

BL Layer GalleryManagement

ComparisonManagement

Compare Engine

RGB αCompare

SNR

DAL StoreData

UpdateData

View

Control

Model

Key Architectural DecisionsWeb Site

Allows remote work.Easy deployment.

MVC architecture Loose coupling between the layers.Model the different layers

UI –Usability

Business logic layerWrapperDevelopment flow

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Key Architectural DecisionsComparison Engine

Implementations – c#Compare pixel by 4 parameters –

α - Brightness R / G / B

Use SNR (Signal to noise ratio ) – to consider if there is a change.

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Key Architectural DecisionsData Access layer

No DatabaseAll changes save to xml file.Pictures compare from local computer

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Project Methodology (1)

Waterfall methodology.Team work

Document Development

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Development stage –5 rounds

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Development

Build Version

DeploymentTesting

Bugs fix & new

features

Project Methodology (2)

Build version release –Copy the source files to isolated environment.Delete all the binaries and output files.Version update.Compilation.Create setup file.Published to the team.

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Project Methodology (3)

QA–Versions Tested : 5Per Version : By STD + Regression test.Test Coverage per version: 80%

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Project Methodology (4)

Test Report : Bugs (1)

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totalintegrated Not integrated Found in

versionMajor Medium minor Major Medium minor Major Medium minor

3 0 1 1 0 0 0 0 1 1 1.005 3 1 1 0 0 0 3 1 1 1.013 1 2 0 0 0 0 1 2 0 1.026 3 1 0 0 1 1 3 2 1 1.033 1 0 0 0 0 2 1 0 2 1.0419 8 5 2 0 1 3 8 6 5 total

Test Report: Bugs (2)

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Major Medium minorMajor Medium minorMajor Medium minorintegratedNot integratedFound in

0

1

2

3

4

5

6

7

8

9

Series1

Product Development ReportVersion 1 contains all the requirements

set by the SRS document except –Support in camera raw image format.Reports – List of differencesDesktop application

There is only one medium bug that wasn’t fixed – if the pictures are totally different we can’t recognize the differences.

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Team Effort (hours/month)

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NPP

SRS

SDD

Dev

elop

+

Peer

Re-

view

Dev

elop

Dev

elop

יולייונימאיאפרילמרץפברוארינוארדצמברנובמבראוקטובר

0

5

10

15

20

25

30

35

40

45

Planed effortActual effort

Lessons LearnedWorking with STD Document from

version 1.00.Role definition.Dedicated more time and thought to the

NPP document.Too small team.

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Demo

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Q & A

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TheEnd

July 21, 2009