Authors: Konstantin Hoesch-Klohe, Aditya Ghose


Abstract:
This paper motivates the use of scenarios as a basis for en- vironmentally aware system design, by showing their amenability for identifying the (approximated) environmental performance of an to-be system. In particular, we describe two complementary techniques for as- sessing and comparing the environmental performance of scenarios and how this can promote environmentally friendly decision making.

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Reviews

Review 1

  • TITLE: Making use of scenarios for environmentally aware system design
  • AUTHORS: Konstantin Hoesch-Klohe, Aditya Ghose
Reviewers' expertise from 1 (low) to 5 (high): 3

  • SCORES 1 (Very Bad) 2 (More or less OK) 3 (Very Good)
Adequacy for RE4SuSy: 3
Originality of the content: 2
Significance of the work: 2
Soundness and accuracy of the technical content: 2
Style and clarity of the paper: 3
OVERALL RECOMMENDATION (Strong Reject - Reject - Conditional Accept - Accept - Strong Accept): Accept

  • REVIEW:

I think that overall it is an interesting paper. It clearly demonstrates how the use of scenarios could be extedned to support environmentally conscious decisions at an early stage of systems development. I would be also interested to know whether there has been some work done on linking scenarios' environmental performance objective (i.e. minimize CO2) to other business objectives (minimize cost, maximize customer satisfaction, etc.) during the decision process.

Review 2

  • TITLE: Making use of scenarios ...
  • AUTHORS: Hoesch-Klohe & Ghose
Reviewers' expertise from 1 (low) to 5 (high): 4

  • SCORES 1 (Very Bad) 2 (More or less OK) 3 (Very Good)
Adequacy for RE4SuSy: 3
Originality of the content: 2
Significance of the work: 2
Soundness and accuracy of the technical content: 2
Style and clarity of the paper: 2
OVERALL RECOMMENDATION (Strong Reject - Reject - Conditional Accept - Accept - Strong Accept): Accept

  • REVIEW:
This is a nice paper. It made me want to read the authors previous work [7] where similar ideas are developed in more details in the context of Business Process Models.
It would have been nice to include an explicit related work section. This section should notably describe the relation between this paper and [7]. I would also be interested to read a discussion about the relation between the proposed scenario-based approach and the goal-based approach in [1]. Are they complementary or alternative approaches? What do you see as being the strength and limitations of each? The paper could also include a discussion of the relation of this work to other techniques for evaluating alternatives with respect to satisfaction of non-functional requirements, such as the qualitative approach of the NFR framework (Mylopoulos et al, TSE 1992), the quantitative approach in KAOS (Letier & van Lamsweerde, FSE 2004), and scenario-based approach of the ATAM framework (Kazman et al, ICSE 99).
It would also be nice to see an illustration of these ideas on a larger example and a full validation on a large case study. This is not necessary for this workshop paper, but perhaps the authors could describe what types of large-scale case study they envision working on and how this may achieved.

Review 3

  • TITLE: Making use of scenarios for environmentally aware system design
  • AUTHORS: Konstantin Hoesch-Klohe, Aditya Ghose
Reviewers' expertise from 1 (low) to 5 (high): 3

  • SCORES 1 (Very Bad) 2 (More or less OK) 3 (Very Good)
Adequacy for RE4SuSy: 3
Originality of the content: 3
Significance of the work: 2
Soundness and accuracy of the technical content: 3
Style and clarity of the paper: 3
OVERALL RECOMMENDATION (Strong Reject - Reject - Conditional Accept - Accept - Strong Accept): Strong accept

  • REVIEW:
The paper aims at using scenarios as a basis for environmentally aware system design,
by showing their amenability for identifying the (approximated) environmental performance
of an to-be system. In particular, we describe two complementary techniques for assessing
and comparing the environmental performance of scenarios and how this can promote environmentally
friendly decision making.
From my perspective, the paper is coherent engineering-oriented piece. I think that paper is
analytically quite excellent. I also think that it fits well the theme of the workshop.
Furthermore, the two techniques proposed in article are interesting and well described.
Nonetheless, the techniques are now much focused on a kind of engineering-oriented optimization.
I would suggest that techniques could also consider wider societal contexts and related practices.
I also present a sympathetic criticism that springs from the fact that my background is not in
engineering, but in the social sciences and foresight. In the field of foresight, one would not
call the quite limited fragments describing a chain of actions, like in this paper, ìa scenario.
In foresight, ìscenarioî usually refers to a wide-ranging and possible depiction of external
societal phenomena, usually on several themes. The scenarios are usually not proposed in singular,
but in plural, so that there are several alternative future options for strategic decision-making.
I would recommend that authors could read some relevant foresight work on scenarios. However, if in
engineering context ìscenarioî is commonly used in this fashion, then I don't see this as too strong
a problem. If this is not the case, I would suggest that the concept scenario could be replaced with
some other concept, perhaps ìpotential action narrativeî or something. Also, the notion of a system
in the paper seemed a bit narrow, and not really focused on socio-technical systemicity that is
relevant for sustainability issues.

Discussion