software release planning for evolving systems l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Software Release Planning for Evolving Systems PowerPoint Presentation
Download Presentation
Software Release Planning for Evolving Systems

Loading in 2 Seconds...

play fullscreen
1 / 18

Software Release Planning for Evolving Systems - PowerPoint PPT Presentation


  • 230 Views
  • Uploaded on

Software Release Planning for Evolving Systems. PhD Candidacy Oral Examination. by Omolade Saliu Supervisor: Dr. Guenther Ruhe Friday, November 25, 2005. Agenda. Introduction Problems & Related work Proposed Solution Summary Future Plans. Resource estimation.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Software Release Planning for Evolving Systems' - Lucy


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
software release planning for evolving systems

Software Release Planning for Evolving Systems

PhD Candidacy Oral Examination

by

Omolade Saliu

Supervisor: Dr. Guenther Ruhe

Friday, November 25, 2005

agenda
Agenda
  • Introduction
  • Problems & Related work
  • Proposed Solution
  • Summary
  • Future Plans
background

Resource estimation

Technical requirements

Set of features

DECISION-MAKING

Prioritization, selection & assignment of features to releases

Decision support

requires

system

Customer requirements

Human

Intelligence

Computational

intelligence

Evolving system

Produces

Release 1

Release 2

Release K

Background…

Introduction

related research

Existing RP Approaches

Intuition-Based

Formal Model-Based

XP

Other models

Optimization models

IFM - Denne & Cleland-Huang 04

OVAC - Jung et al. 98

COVAP - Karlsson & Ryan 97

Provotype - Carlshamre 02

PSERM - Greer 04

NRP - Bagnall et al. 01

ENFEM - Penny 02

FRP - Akker et al. 05

Intuition + Formal Model

EVOLVE* - Ruhe & Ngo-The 04

Related Research

Analysis

  • Problem 1:No defined process
  • Problem 2: No consideration for evolving systems

Problem

related research characterization impact analysis
Related Research- Characterization & Impact Analysis

Related Research

Mining Change Data

Architecture Evaluation

Code Decay/Growth

Metric-based

Questioning

Eick et al. 2001

Lehman, M. 1980

Svahnberg et al. 2003

SAAM – Kazman et al 1994

Belady & Lehman 1976

Al-Naeem et al. 2005

ATAM – Kazman et al. 98

Change Pattern/Fault proneness

Gall et al. 97, 98; Ohlsson et al. 01

CBAM – Kazman et al 01

Hassan et al. 04; Ying et al. 2004;

ALMA – Bengtsson et al . 02

Zimmermann et al. 2005

ARID – Bengtsson & Bosch

Impact Analysis

Bohner & Arnold 1996

  • No release planning consideration
  • Evaluation based on imagined scenarios
  • Characterization scheme not generalizable

Problem

research objectives
Research Objectives
  • Flexible process model that facilitates decision-making
  • Develop characterization and assessment scheme for evolving system components
  • Model effects of system constraints in features assignment decisions – involve impact analysis
  • Extending ReleasePlanner® tool to support RP for evolving systems
  • Empirical evaluation of results

Solution

decision centric process model

Project Manager

Project Manager

Other Stakeholders

Other Stakeholders

Support Environment

Support Environment

Group of features

P1: Feature elicitation

Group of features

P1: Feature elicitation

Objectives & constraints identified

P2: Problem

specification

Objectives & constraints identified

P3: Stakeholders

voting

Priorities assigned to features by stakeholders

P2: Problem

specification

Priorities assigned to features by stakeholders

P3:Stakeholders

voting

Difficulty of modification for all components

P4: Component modifiability assessment

Impacted components & extent of modification

P5: Feature-driven impact analysis

Resource estimates

P4: Resource estimation

P6: Impact quantification

System constraints based on impact

P5: Release plan

generation

P7: Resource estimation

Resource estimates

Shortage of resources

P6: Evaluation of plan alternatives

P8: Release plan

generation

Release plan alternatives

New/evolving features

Shortage of resources

P9: Evaluation of

plan alternatives

Release plan alternatives

Most appropriate release plans

New/evolving features

Scenarios for re-planning

Most appropriate release plans

Scenarios for re-planning

Implementation

Implementation

Decision-centric process model

S-EVOLVE*

Solution

s evolve components characterization and assessment

Expert 2

Expert 1

Expert Q

S-EVOLVE*: Components characterization and Assessment

DoM Factors

Components

Size

Complexity

COMP-1

Difficulty of Modification

(DoM)

Health

COMP-2

Understandability

Criticality

COMP-M

Functionality

Solution

s evolve system constraints using impact information

Features f(i)

C(1)

C(3)

Impact

C(M)

C(4)

C(2)

C(5)

S-EVOLVE*: System constraints using impact information
  • Perform expert-based impact analysis
  • Determine eXtent of Modification (XoM)

System constraint = function(DoM and XoM)

Solution

s evolve empirical validation
S-EVOLVE*: Empirical validation
  • Questionnaires on current practices
  • Initial case study investigating feasibility of our approach
    • Participants: ReleasePlanner® Technical Team
    • Feasibility subjectively assessed based on observation & feedback (ease of use & intuitiveness)
    • Experimented with an extension of EVOLVE* to study effects of system constraints

Summary

expected contributions
Expected Contributions

Following Mary Shaw[ICSE’03] classification of research contributions in Software engineering:

  • Method:
    • The S-EVOLVE* method
  • Method for Analysis and Evaluation:
    • Expert-based systematic evaluation of system components
  • Generalization:
    • Extending the scope of release planning to evolving systems
  • Feasibility Study:
    • Empirical studies for validation & improvement

Summary

future plans
Future Plans
  • The decision-centric process model is completed

Decision-centric

Process

model

Characterization

Assessment

Research Objectives

Effect of System

constraint

ReleasePlanner®

Extension

Empirical

evaluation

Future Plans

future plans13
Future Plans
  • Refine and improve the assessment scheme based on case studies results(Apr-Sept 2006)
    • How to account for new components due to feature implementation
    • Investigate effect of change type
      • Focus on developing taxonomy scheme for features

Decision-centric

Process

model

Characterization

Assessment

Research Objectives

Effect of System

constraint

ReleasePlanner®

Extension

Empirical

evaluation

Future Plans

future plans14
Future Plans
  • Investigate other ways to incorporate system constraint in RP decision model (Jan – Sept 2006)

Decision-centric

Process

model

Characterization

Assessment

Research Objectives

Effect of System

constraint

ReleasePlanner®

Extension

Empirical

evaluation

Future Plans

future plans15
Future Plans

Empirical validation (8 months):

  • Stage 1: ReleasePlanner® Team
    • Sample Goal: Investigate DoM attributes for completeness
    • Sample Goal: Investigate the utility of S-EVOLVE* over regular RP
    • Sample Goal: Investigate DoM assessment for consistency
    • Period: Jan – Apr 2006 (4 months)
  • Stage 2: Fraunhofer-Centre, Maryland (FC-MD)
    • Sample Goal: Investigate DoM attribute for completeness
    • Sample Goal: Investigate DoM assessment for applicability
    • Period: Apr- Aug 2006 (3-4 months)
  • Stage 3: Industrial case study – Chartwell ???

Decision-centric

Process

model

Characterization

Assessment

Research Objectives

Effect of System

constraint

ReleasePlanner®

Extension

Empirical

evaluation

Future Plans

future plans16
Future Plans
  • Implement further extended components to augment ReleasePlanner® based on improvements in modeling(Apr – Sept 2006)

Decision-centric

Process

model

Characterization

Assessment

Research Objectives

Effect of System

constraint

ReleasePlanner®

Extension

Empirical

evaluation

Future Plans

list of related publications
List of Related Publications…

Journal Publications:

  • Saliu, O. and Ruhe, G., (2005) “Software Release Planning for Evolving Systems”, Innovations in Systems and Software Engineering: a NASA Journal, 1(2), September, pp. 189-204.
  • Ruhe, G. and Saliu, M. O., (2005) “The Art and Science of Software Release Planning", IEEE Software, 26(6), November/December, pp. 47-53.

Refereed Conferences:

  • Saliu, O. and Ruhe, G. (2005) "Supporting Software Release Planning Decisions for Evolving Systems", 29th IEEE/NASA Software Eng. Workshop (SEW-29), Greenbelt, USA, Apr 6-7, pp. 14-26.
  • Ngo-The, A. and Saliu, M. O., (2005) "Measuring Dependency Constraint Satisfaction in Software Release Planning using Dissimilarity of Fuzzy Graphs", 4th IEEE International Conference on Cognitive Informatics (ICCI'05), Irvine, California, USA, Aug. 8-10, pp. 301-307.
  • Ngo-The, A. and Saliu, M. O., (2005) "Fuzzy Structural Dependency Constraints in Software Release Planning", IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2005),  Reno, NV, USA, May 22-25, pp. 442-447.
  • Ruhe, G., Saliu, O., Bhawnani, P., Momoh, J. and Ngo-The, A.  (2005) "Decision Support for Software Release Planning - Methods, Tools, and Practical Experience", (Tutorial) 29th IEEE/NASA Software Engineering Workshop (SEW-29), Greenbelt, MD, USA, April 3 & 8, pp. 217-250.

Book Chapter:

  • Maurice, S., Ruhe, G., Saliu, O., Ngo-The, A., and Brassard, R., (2005) "Decision Support for Value-Based Software Release Planning", in: S. Biffl, A. Aurum, B. Boehm, H. Erdogmus, P. Grünbacher (Eds.), Value-Based Software Engineering Management, Springer, September.

Poster:

  • Saliu, O.(2005) "S-EVOLVE* - A Decision Support Method for Planning Releases of Evolving Software Systems", Students Poster Competition, Informatics Circle of Research Excellence(iCORE) Summit, Banff, Canada, Aug 31 - Sep 2.

In-preparation Conference Paper:

  • Saliu, O., (2006) “A Systematic Approach for Assessing Components and Planning Releases of Evolving Software Systems” (Doctoral Symposium) 28th International Conference on Software Engineering (ICSE 2006), Shanghai, China, May 20-28 (submitted).