1. Arteon
GESSI
Software Engineering for Information Systems Group

2. Arteon presentation
Outline
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•
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Context
Method
Arteon
Ongoing work
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3. Arteon presentation
The things we must know before we enter into details
CONTEXT
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4. Arteon presentation
Context: Related concepts
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5. Arteon presentation
Context: Related concepts
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6. Context: Overview
Arteon presentation
Current
and other
systems
SRSNF
Human
support
Knowledge
Arteon
ArchiTech
Method
SRSF
Architectural
decisions
Logical
Deployment
Physical
Process
Views
Generation
Architectural
views
Code
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7. Context: Method
SRSNF
Arteon presentation
Current and
other systems
Requirements
analysis
Constraints
and Quality
goals
Human
support
Architectural
decision making
Architectural
decisions
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8. Arteon presentation
Understanding the method with examples
METHOD
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9. Method: The requirements
SRSNF
Arteon presentation
Current and
other systems
Requirements
analysis
Constraints
and Quality
goals
Human
support
Architectural
decision making
Architectural
decisions
9

10. Method: The requirements
Arteon presentation
• Non-Functional Requirements:
 NF1: The system should be developed with Open
Source Software (OSS)
 NF2: The data should be stored in each
organization
 NF3: The system should allow operation from
each organization
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11. Method: Requirements analysis
SRSNF
Arteon presentation
Current and
other systems
Requirements
analysis
Constraints
and Quality
goals
Human
support
Architectural
decision making
Architectural
decisions
11

12. Method: Requirements analysis
• Requirements analysis:
Arteon presentation
 NF1: The system should be developed with Open Source Software (OSS)
• C1: Property “License type” equal to “OSS”
• G1: Community involvement
 NF2: The data should be stored in each organization
• C2: Property “Persistence” equal to “distributed”
• G2: Security
 NF3: The system should allow operation from each organization
• C3: Property “Access type” includes “remote access”
• G3: Availability
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13. Method: Decision making
SRSNF
Arteon presentation
Current and
other systems
Requirements
analysis
Constraints
and Quality
goals
Human
support
Architectural
decision making
Architectural
decisions
13

14. Method: Decision making
• Making decisions (two ways):
 Constraint satisfaction decisions (quantitative)
Arteon presentation
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Constraints over properties of the elements of the
system
 Quality-oriented decisions (qualitative)
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Knowledge of decisions
Relation between decisions and quality attributes
• We think that both ways can be used together
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15. st
1
Decision making:
way
• Constraint satisfaction decisions (1st way)
Arteon presentation
Evaluate
constraints
Decide to
use
elements
Add new
constraints
• Four iterations:
 Architectural styles
 Architectural
components
 Technological styles
 Technologies
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16. st
1
way
Evaluate
constraints
Decide to
use
elements
Add new
constraints
• C1: Property “License type” equal to “OSS”
• C2: Property “Persistence” equal to “Distributed”
• C3: Property “Access type” includes “Remote access”
Arch. styles
C1 C2 C3
Arteon presentation
3-Layer
SOA
Human
support
Blackboard
Pipe and filter
MVC
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17. st
1
way
Evaluate
constraints
Decide to
use
elements
Add new
constraints
• C4: “3-Layer” requires “Presentation layer”
• C5: “3-Layer” requires “Domain layer”
• C6: “3-Layer” requires “Persistence layer”
Arteon presentation
Arch. Components
C1
C2
C3
C4
C5
C6
Presentation layer
 Remote presentation
Persistence layer
 Distributed persistence
Domain layer
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18. st
1
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•
way
Evaluate
constraints
Decide to
use
elements
Add new
constraints
C1: Property “License type” equal to “OSS”
C2: Property “Persistence” equal to “Distributed”
C3: Property “Access type” includes “Remote access”
No new constraints. LAMP is an acronym of a set
Arteon presentation
of software subsystems used
to build a global solution.
Tech. styles
C1 C2 C3
Java
LAMP
Human
support
.NET
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19. st
1
way
Evaluate
constraints
Decide to
use
elements
Add new
constraints
• C7: “LAMP” requires “Web server” implemented by
“Apache”
• C8: “LAMP” requires “DBMS” implemented by “MySQL”
Arteon presentation
Technologies
C7
C8
Web server
Apache
DBMS
MySQL
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20. Decision making:
nd
2
way
• Quality-oriented decisions (2nd way)
Arteon presentation
Evaluate
quality
Select
decisions
Increase
knowledge
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21. nd
2
way
Evaluate
quality
Select
decisions
Increase
knowledge
• Which are the quality goals?
Arteon presentation
 Community involvement
 Security
 Availability
• In a real case it will be similar to:
 50% security related requirements
 30% usability related requirements
 20% efficiency related requirements
Human
support
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22. nd
2
way
Evaluate
quality
Select
decisions
Increase
knowledge
Arteon presentation
• Security related decisions
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


Authentication facilities
Secure communication
User account management
…
• Selecting one or more decisions will impact on
new constraints
 E.g. secure communications will require some
technology such as SSL.
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23. nd
2
way
Evaluate
quality
Select
decisions
Increase
knowledge
Arteon presentation
• Two ways to increase the knowledge:
 Learning: when a new decision is made from a
constraint imposed by a NFR. The decision is
related to the quality property where the NFR
was classified.
 Reliability: when a decision is selected in the
quality-oriented decisions process its reliability is
increased in relation to the quality property.
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24. Arteon presentation
Model representation of Arteon
ARTEON
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25. Arteon: Overview
• We have 3 in 1 ontologies
Arteon presentation
 Requirements
 Architectural elements
 Reasoning
• The ontology is build in UML
• More than 20 interrelated concepts
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26. Arteon: Requirements
Arteon presentation
• Totally simplified to reuse existing works
• The ontology can represent all kinds of
requirements, but we only consider NFRs.
• The requirements (NFRs) should be:
 Measurable / Checkable
 Classified in a quality model
 Formalized (e.g. i*)
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27. Arteon: Architectural elements
Arteon presentation
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“3-Layer”, “Layered”
“3-Layer” specializes “Layered”
“Presentation layer”, “Domain layer”, etc.
“3-Layer” use “Presentation layer”, etc.
“Distributed persistence”, “Remote presentation”
“Distributed persistence” combinable with “Remote
presentation”
• “Distributed persistence” variation for “3-layer”
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28. Arteon presentation
Arteon: Architectural elements
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“LAMP”, “Stack solution”
“LAMP” specializes “Stack solution”
“BDMS”, “Web server”, etc.
“Stack solution” use “BDMS”, etc.
“Distributed DBMS”
“Apache”, “MySQL”, etc.
“DBMS” implementable by “MySQL”
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29. Arteon: Architectural elements
Arteon presentation
• There are many similarities between
architecture and technology
• So, we put it all together 
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30. Arteon: Reasoning
Arteon presentation
• Which is the relationship with requirements?
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31. Arteon: Reasoning
Arteon presentation
• Which is the relationship with architectural
elements?
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32. Arteon: Reasoning
Arteon presentation
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C1: Property “License type” equal to “OSS”
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Element “LAMP” have the property “License type” with the
value “OSS”
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33. Arteon: Reasoning
Arteon presentation
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C1 is satisfied by element “LAMP”
Human
support
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We make the decision “D1” to use element “LAMP”

We know that the “Community involvement” quality is helped by
the decision “D1” (Knowledge acquisition!)
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34. Arteon: Reasoning
Arteon presentation
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“LAMP” requires “SGBD”
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Really means: “LAMP” impose the decision to use “SGBD”
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35. Arteon presentation
What are we going to do from now on
ONGOING WORK
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36. Arteon presentation
Ongoing work
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Exploratory work: Survey, interviews
Ontology design improvements
Analysis of the ontology quality
Population of the ontology (knowledge)
Validation (case of study)
Tool support
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37. Comments and
questions
GESSI
Software Engineering for Information Systems Group