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An experimental replication on the effect of the practice of mindfulness in conceptual modeling performance

Beatriz Bernárdez, Amador Durán , JoséA. Parejo , Antonio Ruiz-Cortés The Journal of Systems and Software 0 0 0 (2016) 1-20, In Press (Available online 30 June 2016) Indicios de Calidad: Journal of Systems and Software (Elsevier) ISSN: 0164-1212 Factor de impacto 2015: 1,424 Factor de impacto a 5 años: 1,767 Está indexada en dos categorías: Computer Science / Theory & Methods: 31/105 (Q2) Computer Science / Software Engineering: 24/106 (Q1) Otros datos (sacados de la web de la revista): CiteScore: 2.93 Source Normalized Impact per Paper (SNIP): 2.415 SCImago Journal Rank (SJR): 0.897

Does the level of detail of UML diagrams affect the maintainability of source code?: a family of experiments

Although the UML is considered to be the de facto standard notation with which to model software, there is still resistance to model-based development. UML modeling is perceived to be expensive and not necessarily cost-effective. It is therefore important to collect empirical evidence concerning the conditions under which the use of UML makes a practical difference. The focus of this paper is to investigate whether and how the Level of Detail (LoD) of UML diagrams impacts on the performance of maintenance tasks in a model-centric approach. A family of experiments consisting of one controlled experiment and three replications has therefore been carried out with 81 students with different abilities and levels of experience from 3 countries (The Netherlands, Spain, and Italy). The analysis of the results of the experiments indicates that there isno strong statistical evidence as to the influence of different LoDs. The analysis suggests a slight tendency toward better results when using low LoD UML diagrams, especially if used for the modification of the source code, while a high LoD would appear to be helpful in understanding the system. The participants in our study also favored low LoD diagrams because they were perceived as easier to read. Although the participants expressed a preference for low LoD diagrams, no statistically significant conclusions can be drawn from the set of experiments. One important finding attained from this family of experiments was that the participants minimized or avoided the use of UML diagrams, regardless of their LoD. This effect was probably the result of using small software systems from well-known domains as experimental materials.