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SPG Web>SoftwareProductivityGroup>GenteAreaProjects>AspectProductLine>BibliografiaAspectosProductLines>SPLRefactoringTemplates (2016-09-01, PauloBorba)

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Safe Evolution Templates for Software Product Lines (Supporting Material)

Laís Neves, Paulo Borba, Vander Alves, Lucinéia Turnes, Leopoldo Teixeira, Demóstenes Sena, Uirá Kulesza

Abstract

Software product lines enable generating related software products from reusable assets. Adopting a product line strategy can bring significant quality and productivity improvements. However, evolving a product line can be risky, since it might impact many products. When introducing new features or improving its design, it is important to make sure that the behavior of existing products is not affected. To ensure that, one usually has to analyze different types of artifacts, which is a tedious and error-prone activity. To address this issue, in this work we discover and analyze concrete evolution scenarios from four different product lines. We describe a total of 13 safe evolution templates, which are generic transformations that developers can apply when evolving compositional and annotative product lines, with the goal of preserving the behavior of existing products. We also evaluate the templates by analyzing the evolution history of these product lines. In this evaluation, we observe that the templates can address the modifications that developers performed in the analyzed scenarios, which corroborates the expressivity of our template set. We also observe that the templates could also have helped to avoid the errors that we identified during our analysis.

Googlecode seems to have changed the projetc URLs. So, instead of trying the URLs below (such as https://targetspl.googlecode.com/svn/trunk/trunk) please try only their prefix (like https://targetspl.googlecode.com) .

TaRGeT SPL Safe Evolution Scenarios

Latest Version: https://targetspl.googlecode.com/svn/trunk/trunk

Major Releases
- Source code Release 4.0: http://targetspl.googlecode.com/svn/tags/TaRGeT%204.0/ (FM) Not structured as a Software Product Line
- Source code Release 5.0: http://targetspl.googlecode.com/svn/tags/TaRGeT%205.0/ (FM) (CK in Pure::Variants format)
- Source code Release 6.0: http://targetspl.googlecode.com/svn/tags/TaRGeT%206.0/ (FM) (CK in Hephaestus format)

Minor Releases source codes: The CK and FM, when available, are inside TaRGeT PV folder
- Between Releases 4.0 and 5.0
  - Minor Release 1: http://targetspl.googlecode.com/svn/branches/target_fsf2_cnl_integrado_com_target4.0/
  - Minor Release 2: http://targetspl.googlecode.com/svn/branches/target_fsf2_cm_integrado_com_target4.0/
  - Minor Release 3: http://targetspl.googlecode.com/svn/branches/target_faa_cm_interruption/
  - Minor Release 4: http://targetspl.googlecode.com/svn/branches/target_fsf2-lmn3-pvcv_reuso_ufpe/
  - Minor Release 5: http://targetspl.googlecode.com/svn/branches/target_fsf2_cnl_intregrado_com_target4.0_e_interruption/
  - Minor Release 6: http://targetspl.googlecode.com/svn/branches/target_fsf2_tc3_e_tc4_spl/
  - Minor Release 7: http://targetspl.googlecode.com/svn/branches/target_fsf2_tc4_sem_spl/
  - Minor Release 8: http://targetspl.googlecode.com/svn/branches/target_mmr3_input_xml_doc_spl/
- Between Releases 5.0 and 6.0
  - Minor Release 9: http://targetspl.googlecode.com/svn/branches/target_fsf2_onthefly/
  - Minor Release 10: http://targetspl.googlecode.com/svn/branches/target_mcms_xml_editor/

Spreadsheet detailing the templates used in each TaRGeT scenario and the templates frequence of usage is available here

Illustration of some evolution scenarios are detailed here.

Note: As we migrated the data from our SVN to a public one, the commit comments were lost. If you need the comments, you can send an email to lmn3 at cin.ufpe. br requesting them. Some releases used Pure Variants and/or Hephaestus tools to manage variabilities.

MobileMedia SPL Safe Evolution Scenarios

Source code: http://mobilemedia-evolving-study.googlecode.com/svn/trunk/ (All releases)
Evolution scenarios illustrations including FM and CK are available here
Spreadsheet detailing the templates used in each MobileMedia scenario and the templates frequence of usage is available here