We develop an approach of component software reliability analysis which includes the benefits of both time domain, and structure based approaches. This approach overcomes the deficiency of existing NHPP techniques that fall short of addressing repair, and internal system structures simultaneously. Our solution adopts a method of transformation of testing data to cover both methods, and is expec...

ISO/IEC TR 29110-5-1 provides a Software Engineering life cycle reference model for Very Small Entities on small software projects (less than 6 people month). This paper uses Composition Trees (CT) as a formal notation to model part of this process, and compares it with its counterpart process (which is also modeled in a CT) from ISO/IEC 12207. The outcome of the comparison is a Comparison Comp...

This paper proposes a model transformation to automatically generate Fault Tree models from UML software models annotated with dependability annotations. The goal is to extend the model-driven software development process with the capability of verifying some important dependability properties (such as reliability, safety) starting early in the software lifecycle, by solving the generated Fault...

Over 30 years of research have gone into software reliability engineering during testing. With today's complex software systems however, reliability has to be built into the early phases of development, including architectural design. We present a software architecture-based approach to estimating component reliability. Our sto-chastic reliability model is applicable to early stages of developm...

We propose an approach for timing analysis of software-based embedded computer systems that builds on the established probabilistic framework of Bayesian networks. We envision an approach where we take (1) an abstract description of the control flow within a piece of software, and (2) a set of run-time traces, which are combined into a Bayesian network that can be seen as an interactive timing ...

objective: diabetes mellitus (dm) is a common metabolic. one of the unknown complications of dm is cognitive disorders. different types of cognitive impairment caused by dm may affect the quality of life, self-management of diabetes, and glycosylated hemoglobin. this study aimed to determine the prevalence of cognitive impairment and its relationship with glycosylated hemoglobin (hba1c), diabet...

Modelling languages such as UML are increasingly used to describe software systems at different levels of abstraction. There are two very different ways of using such languages. One approach is based on the manifestation of a single model, with construction of different views from this model, and with automatic or semi-automatic consistency checking among these views. This follows what we term ...

Background and Aim: Several studies have compared the orthodontists’, dentists’, and dental patients’ opinions with regard to facial profile esthetics; however, the Iranian population has been limitedly researched in this respect. Our aim was to determine the differences in the esthetic preferences of Iranian patients, dentists, and orthodontists with regard to facial profile esthetics. Materi...

None of the processing models in the software development has explained the software systems performance evaluation and modeling; likewise, there exist uncertainty in the information systems because of the natural essence of requirements and this may cause other challenges in the processing of software development. By definition an extended version of UML (Fuzzy-UML), the functional requirement...

The cephalometric profile radiography represents a very important paraclinical examination in establishing the orthodontic diagnostic and treatment plan. The modern cephalometric measurements involve the use of cephalometric software. The aim of our study was to investigate, with the aid of the Orthalis cephalometric software, the malocclusion distribution in a study group, by evaluating the pa...