A Performance Analysis of the XACML Decision Process and the Impact of Caching

The reporting of comprehensive income is becoming increasingly important. After the introduction of Other Comprehensive Income (OCI) reporting, as required by the 2007 IAS 1-revised, the IASB is currently seeking inputs from investors on the usefulness of unrealized gains and losses and on the role of comprehensive income. This circumstance is of particular relevance in code law countries, as local pre-IFRS accounting models influence financial statement preparers and users. This study aims at investigating the role played by unrealized gains and losses reporting on users' decision process, by examining the impact of OCI on the Italian listed companies RoE ratio and by surveying a sample of financial analysts, also content analysing their formal reports. The results show that the reporting of comprehensive income does not affect the financial statement users' decision process, although it statistically affects Italian listed entities' performance.

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Comparison of QoS Performance Over WLAN, VoIP4 and VoIP6

International Research Journal of Management IT and Social Sciences ◽

10.21744/irjmis.v2i11.80 ◽

2015 ◽

Vol 2 (11) ◽

pp. 42

Author(s):

Esra Musbah Mohammed Musbah ◽

Khalid Hamed Bilal ◽

Amin Babiker A. Nabi Mustafa

Keyword(s):

Performance Analysis ◽

Internet Protocol ◽

Voice Over Internet Protocol ◽

Ip Network ◽

Qos Parameters ◽

Software Program ◽

Jitter Delay ◽

Qos Performance ◽

Delay Variation ◽

A Performance

VoIP stands for voice over internet protocol. It is one of the most widely used technologies. It enables users to send and transmit media over IP network. The transition from IPv4 to IPv6 provides many benefits for internet IPv6 is more efficient than IPv4. This paper presents a performance analysis of VoIP over WLAN using IPv4 and IPv6 and OPNET software program to simulate the protocols and to investigate the QoS parameters such as jitter, delay variation, packet send, and packet received and throughputs for IP4 and IP6 and compare between them.

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Performance Analysis and Design Considerations of the Shallow Underwater Optical Wireless Communication System with Solar Noises Utilizing a Photon Tracing-Based Simulation Platform

Electronics ◽

10.3390/electronics10050632 ◽

2021 ◽

Vol 10 (5) ◽

pp. 632

Author(s):

Xiaozheng Wang ◽

Minglun Zhang ◽

Hongyu Zhou ◽

Xiaomin Ren

Keyword(s):

Performance Analysis ◽

Wireless Communication ◽

Ambient Noise ◽

Large Scale ◽

Delay Spread ◽

Simulation Platform ◽

Optical Wireless Communication ◽

Optical Wireless ◽

Analysis And Design ◽

The Impact

The performance of the underwater optical wireless communication (UOWC) system is highly affected by seawater´s inherent optical properties and the solar radiation from sunlight, especially for a shallow environment. The multipath effect and degradations in signal-to-noise ratio (SNR) due to absorption, scattering, and ambient noises can significantly limit the viable communication range, which poses key challenges to its large-scale commercial applications. To this end, this paper proposes a unified model for underwater channel characterization and system performance analysis in the presence of solar noises utilizing a photon tracing algorithm. Besides, we developed a generic simulation platform with configurable parameters and self-defined scenarios via MATLAB. Based on this platform, a comprehensive investigation of underwater channel impairments was conducted including temporal and spatial dispersion, illumination distribution pattern, and statistical attenuation with various oceanic types. The impact of ambient noise at different operation depths on the bit error rate (BER) performance of the shallow UOWC system was evaluated under typical specifications. Simulation results revealed that the multipath dispersion is tied closely to the multiple scattering phenomenon. The delay spread and ambient noise effect can be mitigated by considering a narrow field of view (FOV) and it also enables the system to exhibit optimal performance on combining with a wide aperture.

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A performance analysis of batch fluidized bed drying of two pharmaceutical powders by desirability approach

Drying Technology ◽

10.1080/07373937.2020.1861460 ◽

2020 ◽

pp. 1-22

Author(s):

Amel Zammouri ◽

Nourhene Boudhrioua Mihoubi ◽

Nabil Kechaou

Keyword(s):

Performance Analysis ◽

Fluidized Bed ◽

Pharmaceutical Powders ◽

Desirability Approach ◽

Fluidized Bed Drying ◽

A Performance

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Are UX Evaluation Methods Providing the Same Big Picture?

Sensors ◽

10.3390/s21103480 ◽

2021 ◽

Vol 21 (10) ◽

pp. 3480

Author(s):

Walter Takashi Nakamura ◽

Iftekhar Ahmed ◽

David Redmiles ◽

Edson Oliveira ◽

David Fernandes ◽

...

Keyword(s):

Software Development ◽

Decision Process ◽

Development Process ◽

Evaluation Methods ◽

Sentence Completion ◽

Software Development Process ◽

Software Application ◽

Software Products ◽

Big Picture ◽

The Impact

The success of a software application is related to users’ willingness to keep using it. In this sense, evaluating User eXperience (UX) became an important part of the software development process. Researchers have been carrying out studies by employing various methods to evaluate the UX of software products. Some studies reported varied and even contradictory results when applying different UX evaluation methods, making it difficult for practitioners to identify which results to rely upon. However, these works did not evaluate the developers’ perspectives and their impacts on the decision process. Moreover, such studies focused on one-shot evaluations, which cannot assess whether the methods provide the same big picture of the experience (i.e., deteriorating, improving, or stable). This paper presents a longitudinal study in which 68 students evaluated the UX of an online judge system by employing AttrakDiff, UEQ, and Sentence Completion methods at three moments along a semester. This study reveals contrasting results between the methods, which affected developers’ decisions and interpretations. With this work, we intend to draw the HCI community’s attention to the contrast between different UX evaluation methods and the impact of their outcomes in the software development process.

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