SelfConFoil no 1

Design of Self-Adaptive Systems

Course introduction 2013

Rolv Bræk, ITEM

SelfConFoil no 2

Objectives

• You shall obtain general knowledge about different principles and technical solutions for self-configuration and self-adaptation.

• You shall get hands on experiences with self-adaptation by developing a self-adapting application.

• You shall be able to critically assess and select technologies.

• You shall obtain general knowledge about different principles and technical solutions for self-configuration and self-adaptation.

• You shall get hands on experiences with self-adaptation by developing a self-adapting application.

• You shall be able to critically assess and select technologies.

SelfConFoil no 3

Plan

• Together we will investigate Self Adaptation and Self Configuration: what is it, what are the challenges, what are the solutions?

• General introduction for about 3 lessons.

• We shall use a home networked system (HNS) as case study. Each group will develop some self-adaptive components for the system.

• There will be workshops to present and discuss progress and solutions.

• Each group writes a lab report that documents their design, gives a critical assessment and discusses related work and alternative solutions for their part.

• Each group present their work for examiners.

• You may work alone or in groups of two students.

• Together we will investigate Self Adaptation and Self Configuration: what is it, what are the challenges, what are the solutions?

• General introduction for about 3 lessons.

• We shall use a home networked system (HNS) as case study. Each group will develop some self-adaptive components for the system.

• There will be workshops to present and discuss progress and solutions.

• Each group writes a lab report that documents their design, gives a critical assessment and discusses related work and alternative solutions for their part.

• Each group present their work for examiners.

• You may work alone or in groups of two students.

SelfConFoil no 4

Practicalities:

Groups:

• Self organising

• Doing lab work

• Preparing lab report with critical assesments and related work

• Participating in system integration

Venue for lessons and presentations

• Savannen Wednesdays 13:15-15:00

Web page

• http://www.item.ntnu.no/fag/ttm3/

Ass.: Snorre Lothar von Gohren Edwin

Groups:

• Self organising

• Doing lab work

• Preparing lab report with critical assesments and related work

• Participating in system integration

Venue for lessons and presentations

• Savannen Wednesdays 13:15-15:00

Web page

• http://www.item.ntnu.no/fag/ttm3/

Ass.: Snorre Lothar von Gohren Edwin

SelfConFoil no 5

First timetable

• Week 1 Course introduction. Variability

• Week 2 Pre-structured systems

• Week 3 Dynamic component systems

• Week 4 Lab introduction

• Week 5 … Lab work

• Week x Presentation of subsystems 1,2 (2h lecture)

• Week y Presentation of subsystems 3,4 (2h lecture)

• Week z Presentation of subsysems 5,6 (2h lecture)

• Week æ Integration workshop

• 01.12.2013 Final delivery of the assignments and reports

• Week 1 Course introduction. Variability

• Week 2 Pre-structured systems

• Week 3 Dynamic component systems

• Week 4 Lab introduction

• Week 5 … Lab work

• Week x Presentation of subsystems 1,2 (2h lecture)

• Week y Presentation of subsystems 3,4 (2h lecture)

• Week z Presentation of subsysems 5,6 (2h lecture)

• Week æ Integration workshop

• 01.12.2013 Final delivery of the assignments and reports

SelfConFoil no 6

What is it?

• What is Self Adaptation for you?

• Try to give some examples!

• What are the basic principles and technologies?

• What is Self Adaptation for you?

• Try to give some examples!

• What are the basic principles and technologies?

SelfConFoil no 7

Self-adaptive

By self adaptive we mean systems and components that configure themselves and dynamically adapt to changing environments with minimal human participation.

By self adaptive we mean systems and components that configure themselves and dynamically adapt to changing environments with minimal human participation.

SelfConFoil no 8

Adaptivity classes

• Parameter adaptation: changing values without changing components or algorithms.

• Compositional adaptation:

•Structural – changing parts and part structure

•Behavioral – changing behavior/types and algorithms

• Autonomic systems: not just adaptation, but self management, self healing, ..., Self*

• Parameter adaptation: changing values without changing components or algorithms.

• Compositional adaptation:

•Structural – changing parts and part structure

•Behavioral – changing behavior/types and algorithms

• Autonomic systems: not just adaptation, but self management, self healing, ..., Self*

SelfConFoil no 9

Flexibility

Degree of pre-planning:

• Anticipated, semi anticipated and unanticipated adaptation.

Degree of pre-structuring:

• Pre-structured systems: adaptation is bounded to variability admitted within a system structure

• Dynamic component systems: no predefined system, components are dynamically deployed, linked and adapted.

Degree of pre-planning:

• Anticipated, semi anticipated and unanticipated adaptation.

Degree of pre-structuring:

• Pre-structured systems: adaptation is bounded to variability admitted within a system structure

• Dynamic component systems: no predefined system, components are dynamically deployed, linked and adapted.

SelfConFoil no 10

System categories

Many systems have some degree of self-adaptivity, but the abilities vary:

• Pre-structured systems: parameter adaptation and some (limited) compositional adaptation

• Dynamic component systems: compositional adaptation

• Autonomic systems: self*

Many systems have some degree of self-adaptivity, but the abilities vary:

• Pre-structured systems: parameter adaptation and some (limited) compositional adaptation

• Dynamic component systems: compositional adaptation

• Autonomic systems: self*

SelfConFoil no 11

McKinley et.al.:Composing adaptive software:

Recommended reading, but focused on programming and not modelling!

Enabling technologies:

• Separation of concerns

• Computational reflection

• Component based design

• Middleware

Key challenges:

• Assurance

• Security

• Interoperability

• Decision making

Enabling technologies:

• Separation of concerns

• Computational reflection

• Component based design

• Middleware

Key challenges:

• Assurance

• Security

• Interoperability

• Decision making

SelfConFoil no 12

Some technologies

•Grid computing and mobile grid

•Context aware services and systems

•Ubiquitous/ambient computing

•Service oriented architecture (SOA) and service oriented computing (SOC)

•Ontologies, Semantic web

•Ad-hoc networking:- JXTA protocols http://www.jxta.org - P2P architectures: Information Sharing (Napster,dc++), Communication (ICQ), Distributed Computation (The Grid)

•JINI Architecture

•IBM Autonomic computing: http://www-03.ibm.com/autonomic/

http://www-306.ibm.com/autonomic/about.shtml

•Grid computing and mobile grid

•Context aware services and systems

•Ubiquitous/ambient computing

•Service oriented architecture (SOA) and service oriented computing (SOC)

•Ontologies, Semantic web

•Ad-hoc networking:- JXTA protocols http://www.jxta.org - P2P architectures: Information Sharing (Napster,dc++), Communication (ICQ), Distributed Computation (The Grid)

•JINI Architecture

•IBM Autonomic computing: http://www-03.ibm.com/autonomic/

http://www-306.ibm.com/autonomic/about.shtml

SelfConFoil no 13

More technologies•Service Discovery Protocols and middleware:

•HAVi (Home Audio-Video interoperability) http://www.havi.org

•SLP (Service Location Protocol) RFC 2165 and RFC 2608 http://www.openslp.org/

•Salutation Architectures

Salutation Consortium http://www.salutation.org •NINJA project by Berkeley and SDS http://ninja.cs.berkeley.edu/

•OSGi

•PnP concept in MAC-OS and Windows

•UPnP, Zeroconf, Bonjour

•Bluetooth

•CORBA, DCOM, RMI

•OMG MDA and metamodelling

•Service Discovery Protocols and middleware:

•HAVi (Home Audio-Video interoperability) http://www.havi.org

•SLP (Service Location Protocol) RFC 2165 and RFC 2608 http://www.openslp.org/

•Salutation Architectures

Salutation Consortium http://www.salutation.org •NINJA project by Berkeley and SDS http://ninja.cs.berkeley.edu/

•OSGi

•PnP concept in MAC-OS and Windows

•UPnP, Zeroconf, Bonjour

•Bluetooth

•CORBA, DCOM, RMI

•OMG MDA and metamodelling

SelfConFoil no 14

Autonomic systems: a vision for self adaptive systems – self-*

The Autnonomic Computation Initiative (IBM):

believes the growing complexity of modern networked computer systems is the biggest limiting factor in their expansion and therefore we need:

• Self-Configuration: Automatic configuration of components;

• Self-Healing: Automatic discovery, and correction of faults;

• Self-Optimization: Automatic monitoring and control of resources to ensure the optimal functioning with respect to the defined requirements;

• Self-Protection: Proactive identification and protection from arbitrary attacks.

• http://www-03.ibm.com/autonomic/• http://en.wikipedia.org/wiki/Self-Management

• http://en.wikipedia.org/wiki/Autonomic_Computing

The Autonomic Communication Forum:

believes that a radical paradigm shift towards a self-organising, self-managing and context-aware autonomous network, considered in a technological, social and economic context, is the only adequate response to the increasingly high complexity and demands now being placed on the Internet

• http://www.autonomic-communication-forum.org/

The Autnonomic Computation Initiative (IBM):

believes the growing complexity of modern networked computer systems is the biggest limiting factor in their expansion and therefore we need:

• Self-Configuration: Automatic configuration of components;

• Self-Healing: Automatic discovery, and correction of faults;

• Self-Optimization: Automatic monitoring and control of resources to ensure the optimal functioning with respect to the defined requirements;

• Self-Protection: Proactive identification and protection from arbitrary attacks.

• http://www-03.ibm.com/autonomic/• http://en.wikipedia.org/wiki/Self-Management

• http://en.wikipedia.org/wiki/Autonomic_Computing

The Autonomic Communication Forum:

believes that a radical paradigm shift towards a self-organising, self-managing and context-aware autonomous network, considered in a technological, social and economic context, is the only adequate response to the increasingly high complexity and demands now being placed on the Internet

• http://www.autonomic-communication-forum.org/