Theorizing Virtuality in Enterprise Social Systems

This chapter has built on research on today's modern organizations to lay the foundations for a comprehensive and systematic theorization of enterprise social systems. Theorizing virtuality marks a fundamental transformation in space-time parameters in communications. This is especially so in the context of rapid current advancements in IT such as cloud computing, as well as numerous other technological fronts. Current IT trends show that increased spatio-temporal plasticity heightens the effectiveness and the efficiency of modern enterprise social systems. In particular, subject-oriented asynchronous communications experience greater inferred plasticity and event-oriented synchronous communications experience greater referred plasticity. Finally, enterprise social systems vary in their degree of virtuality based on the perspective of the relevant stakeholder group considered.

Are Emojis Creating a New or Old Visual Language for New Generations? A Socio-semiotic Study

The increasing use of emojis, digital images that can represent a word or feeling in a text or email, and the fact that they can be strung together to create a sentence with real and full meaning raises the question of whether they are creating a new language amongst technologically savvy youth, or devaluing existing language. There is however a further depth to emoji usage as language, suggesting that they are in fact returning language to an earlier stage of human communication. Parallels between emojis and hieroglyphs and cuneiform can be seen which indicates the universality of visual communication forms, rather than written alphabetised language. There are also indications that emojis may be cultural or gender-specific with indications that women use more emojis than men to express their feelings and that age is less of an indicator of usage than technological awareness and capability. It appears that emojis are filling the need for adding non-verbal cues in in digital communication about the intent and emotion behind a message. Examinations of the way that emojis have developed and evolved and their current and forecast usage leads to the conclusion that they are not a “new” language developed by the technological adept younger generations, but instead are an evolution of older visual language systems that make use of digital technology to create greater layers and nuance in asynchronous communications. Furthermore, emojis are devices for demonstrating tone, intent and feelings that would normally be conveyed by non-verbal cues in personal communications but which cannot be achieved in digital messages. It is also evident from prior works and analyses of usage that there are universal meanings to Emojis. This suggests that as a language form, emojis may be able to contribute to increased cross-cultural communication clarity. Further research is however recognised as being necessary to fully understand the role that emojis can play as a visual language for all generations, not just those termed millennials or technologically savvy youths. Keywords: Emojis, socio-semiotic analysis, new language, old language, pictograms

FlakyLoc: Flakiness Localization for Reliable Test Suites in Web Applications

Web application testing is a great challenge due to the management of complex asynchronous communications, the concurrency between the clients-servers, and the heterogeneity of resources employed. It is difficult to ensure that a test case is re-running in the same conditions because it can be executed in undesirable ways according to several environmental factors that are not easy to fine-grain control such as network bottlenecks, memory issues or screen resolution. These environmental factors can cause flakiness, which occurs when the same test case sometimes obtains one test outcome and other times another outcome in the same application due to the execution of environmental factors. The tester usually stops relying on flaky test cases because their outcome varies during the re-executions. To fix and reduce the flakiness it is very important to locate and understand which environmental factors cause the flakiness. This paper is focused on the localization of the root cause of flakiness in web applications based on the characterization of the different environmental factors that are not controlled during testing. The root cause of flakiness is located by means of spectrum-based localization techniques that analyse the test execution under different combinations of the environmental factors that can trigger the flakiness. This technique is evaluated with an educational web platform called FullTeaching. As a result, our technique was able to locate automatically the root cause of flakiness and provide enough information to both understand it and fix it.

Automatic Analysis of Complex Interactions in Microservice Systems

Interactions in microservice systems are complex due to three dimensions: numerous asynchronous interactions, the diversity of asynchronous communication, and unbounded buffers. Analyzing such complex interactions is challenging. In this paper, we propose an approach for interaction analysis using model checking techniques, which is supported by the Process Analysis Toolkit (PAT) tool. First, we use Labeled Transition Systems (LTSs) to model interaction behaviors in microservice systems as sequences of send actions under synchronous and asynchronous communications. Second, we introduce a notion of correctness called “interaction soundness” which is considered as a minimal requirement for microservice systems. Third, we propose an encoding of LTSs into the CSP# process algebra for automatic verification of the property interaction soundness. The experimental results show that our approach can automatically and effectively identify interaction faults in microservice systems.