Graphs and tables

Coll, Richard; Coll, Joan H.; Thakur, Ganesh

doi:10.1145/175276.175283

Cited by 50 publications

(20 citation statements)

References 9 publications

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“…As reported in [22], some experimental studies have shown advantages for diagrams, but others have shown advantages for tables, or given mixed results. One particular study also showed the outcome to be dependant on the subject group, business students solving problems more effectively with tables while engineering students solved problems more effectively with graphs [23].…”

Section: Related Workmentioning

confidence: 99%

Safety Hazard Identification by Misuse Cases: Experimental Comparison of Text and Diagrams

Stålhane

Sindre

Model Driven Engineering Languages and Systems

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Abstract. In general, diagrams and text are both considered to have their advantages and disadvantages for the representation of use case models, but this is rarely investigated experimentally. This paper describes a controlled experiment where we compare safety hazard identification by means of misuse cases based on use case diagrams and textual use cases. The experiment participants found use case diagrams and textual use cases equally easy to use. In most cases those who used textual use cases were able to identify more failure modes or threats. The main reason for this seems to be that use cases encourage analysts to specifically focus on threats related to the functions mentioned in the use case, and textual use cases include more functional details than diagrams. The focus is decided by information in each use case which will thus decide the number of threats identified.

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Section: Related Workmentioning

confidence: 99%

Safety Hazard Identification by Misuse Cases: Experimental Comparison of Text and Diagrams

Stålhane

Sindre

Model Driven Engineering Languages and Systems

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“…As reported in [6], some experimental studies have shown advantages for diagrams, but others have shown advantages for tables, or given mixed results. One particular study also showed the outcome to be dependent on the subject group, business students solving problems more effectively with tables while engineering students solved problems more effectively with graphs [7].…”

Section: Related Workmentioning

confidence: 98%

Comparing Safety Analysis Based on Sequence Diagrams and Textual Use Cases

Stålhane

Sindre

Bousquet

2010

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Abstract. Safety is of growing importance for information systems due to increased integration with embedded systems. Discovering potential hazards as early as possible in the development is key to avoid costly redesign later. This implies that hazards should be identified based on the requirements, and it is then useful to compare various specification techniques to find out the strengths and weaknesses of each with respect to finding and documenting hazards. This paper reports on two experiments in hazards identification -one experiment based on textual use cases and one based on systems sequence diagrams. The comparison of the experimental results reveal that use cases are better for identifying hazards related to the operation of the system while system sequence diagrams are better for the identification of hazards related to the system itself. The combination of these two techniques is therefore likely to uncover more hazards than one technique alone.

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“…Our research approach follows the work of Coll and Coll (1993) and Coll et al (1994) who suggested that a comparison between tables and graphs as a basis for user interface should take into account a variety of contextual factors (also Mayer et al, 1997). Accordingly, the following factors were investigated in our experiment:…”

Section: Hypotheses and Research Approachmentioning

confidence: 99%