Managing a Software Ecosystem Using a Multiple Software Product Line: a Case Study on Digital Signage Systems

SEAA’14 - Verona August 2014

Managing a Software Ecosystem Using a Multiple Software Product Line:

a Case Study on Digital Signage Systems

Simon Urli, Mireille Blay-Fornarino, Philippe Collet, Sébastien Mosser, Michel Riveill

[email protected]

I3S Laboratory - University Nice-Sophia Antipolis

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mailto:[email protected]



SPL for software intensive systems

2


What about information systems?

3


Using SPL for Information Systems?

‣ Managing the complex variability

‣ Managing the fast evolution

‣ Integrating the final user in the SPL process

4


DIGITAL SIGNAGE SYSTEMS


Digital Signages everywhere

6


Digital Signage Systems (DSS)

7

Company Services

Administration

Client Administration

Services


Digital Signage System Variability

8

Concepts:- source- layout- zones- renderer- transition

Company Services



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Concepts:- source- layout- zones- renderer- transition



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Concepts:- source- layout- zone- renderer- transition



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History

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2007: first DSS prototype

2009: DSS ecosystem

2012: start a SPL for DSS

2013: MSPL dedicated to DSS created

Today: the MSPL is still growing with its ecosystem


EcosystemDecentralized organization

Many contributors

Organic and fast evolution

Distributed knowledge



Many contributors





Many contributors





Many contributors





Many contributors




History

19


2009: emerging DSS ecosystem




j


History

20






SEAA’14 - Verona August 201421Extracted from jSeduite presentation. Author: S. Mosser

jSeduite deployment: a lot of variability to manage!


History

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Goal

Build a SPL for DSS reusing the legacy jSeduite and keeping the

ecosystem growing.

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MSPL: several SPLs

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Gen

erat

ion

Tool

s

SPLassets

SPLassets

SPLassets

SPLassets

SPLassetsAs

sets

Prod

ucts

SPLfor

layout

SPLfor

transitions

SPLfor

zones

SPLfor

renderers

SPLfor

sources

FMs


Using MSPL

‣ Managing the complex variability

‣ Managing the fast evolution

‣ Integrating the final user in the SPL process

25


Advertising

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Layout Zone

Transition

Renderer Source1 1..*

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1 1..* 1 1

Gen

erat

ion

Tool

s

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

SPLassets

SPLassets

SPLassets

SPLassets

SPLassets

Dom

ain

Mod

elAs

sets Shared

MSPLassets

Prod

ucts

SPLfor

layout

SPLfor

transitions

SPLfor

zones

SPLfor

renderers

SPLfor

sources

FMs

Details about reasoning engine available at SPLC’14

@ Florence!


YourCast: MSPL Overview

27

Layout Zone

Transition


11

1 1..* 1 1

Gen

erat

ion

Tool

s

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

SPLassets

SPLassets

SPLassets

SPLassets

SPLassets

Dom

ain

Mod

elAs

sets Shared

MSPLassets

Prod

ucts

SPLfor

layout

SPLfor

transitions

SPLfor

zones

SPLfor

renderers

SPLfor

sources

FMs2

1

4

3


Domain Model

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Layout Zone

Transition


11

1 1..* 1 1G

ener

atio

n To

ols

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

SPLassets

SPLassets

SPLassets

SPLassets

SPLassets

Dom

ain

Mod

elAs

sets Shared

MSPLassets

Prod

ucts

SPLfor

layout

SPLfor

transitions

SPLfor

zones

SPLfor

renderers

SPLfor

sources

FMs2

1

4

3

blueLayout

Zone1

Zone2

Zone3

Zone4

ForecastRenderer WeatherChannel

NoTransition

ArticleRenderer InternalNews

MosaicRenderer FlickR

Fade

RSSTitleRenderer RSSReader

ScrollingRight2Left

RSSDetailsRenderer RSSReader

PushTop2Bottom

Configuration

conforms to


Assets Management

29

Layout Zone

Transition


11

1 1..* 1 1

Gen

erat

ion

Tool

s

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

SPLassets

SPLassets

SPLassets

SPLassets

SPLassets

Dom

ain

Mod

elAs

sets Shared

MSPLassets

Prod

ucts

SPLfor

layout

SPLfor

transitions

SPLfor

zones

SPLfor

renderers

SPLfor

sources

FMs2

1

4

3


Assets Management... and Evolution

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Source

TypeInfo Criteria

PictureAlbum Filter

FlickR Album

+ +

FM representing

new componentCode Assets

Textual information


Evolving FM incrementally

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Layout Zone

Transition


11

1 1..* 1 1G

ener

atio

n To

ols

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

MSP

L as

sets

SPLassets

SPLassets

SPLassets

SPLassets

SPLassets

Dom

ain

Mod

elAs

sets Shared

MSPLassets

Prod

ucts

SPLfor

layout

SPLfor

transitions

SPLfor

zones

SPLfor

renderers

SPLfor

sources

FMs2

1

4

3Source

TypeInfo Criteria

PictureAlbum Filter

FlickR Album

Mandatory featureOptional feature

XOR Key

Source

TypeInfo Criteria

Calendar PictureAlbum Filter

ICalReader FlickR Picasa Album Period

Source

TypeInfo Criteria

PictureAlbum Filter

Picasa Album

Source

TypeInfo Criteria

Calendar Filter

ICalReader Period

+ + =

Acher, M., Collet, P., Lahire, P., & France, R. B. (2012, March). Separation of concerns in feature modeling: support and applications.

In Proceedings of the 11th annual international conference on Aspect-oriented Software Development. ACM.


Assets Management... and Evolution

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Source

TypeInfo Criteria

PictureAlbum Filter

FlickR Album

+ +

Mandatory featureOptional feature

XOR Key

Source

TypeInfo Criteria

Calendar PictureAlbum Filter

ICalReader FlickR Picasa Album Period

Source

TypeInfo Criteria

PictureAlbum Filter

Picasa Album

Source

TypeInfo Criteria

Calendar Filter

ICalReader Period

+ =


MDE based generation

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blueLayout

Zone1

Zone2

Zone3

Zone4

ForecastRenderer WeatherChannel

NoTransition

ArticleRenderer InternalNews

MosaicRenderer FlickR

Fade

RSSTitleRenderer RSSReader

ScrollingRight2Left

RSSDetailsRenderer RSSReader

PushTop2Bottom

conforms to

Administration

Company Services

metamodel


History

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2009: DSS ecosystem





jSeduite and YourCast in figures

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jSeduite YourCastLifespan around 3 years less than 2 years

Internal developers 2 2Contributors 14 around 35Deployments 4 18

Number of sources around 25 68Number of renderers around 20 74Number of transitions mixed with renderers 15

Number of layouts around 5 13KLOC 200 470


Tomorrow?

‣ Towards a better integration of final users

‣ More automated integration tests

‣ Automated production of documentation

‣ Managing evolution of SPL constraints

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In a nutshell, what was the value in creating a MSPL for our DSS

ecosystem?

• SPL benefits: ROI, fast derivation, variability management

• Ecosystem benefits: fast evolving family of products, many contributors

• MSPL benefits: final-user oriented SPL, complex variability management

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In a nutshell, where creating a MSPL can be valuable?

• for SPL dedicated to complex domains

• for fast evolving SPL

• to manage properly a growing ecosystem for complex domains

• to help building a community around a complex domain

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Thanks for your attention!

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[email protected]

