Abstract—Unidentified inconsistencies in softwaredesign models can obstruct the desired time-to-market attribute of software. The consequences of them are far reaching besides being reflected in the implementation. Detecting and tracking inconsistencies in model-driven software development has been challenging. However, there is an encouraging fact that the emergence of Unified Modelling Language (UML) brought uniform notations to be used across the globe. Many UML based design consistency checkers came into existence. However an effective automated approach for consistency checking is still desired as it can lead to early detection of inconsistencies. Thus frequently occurring cost and budget overruns in software industry can be eliminated. Towards this end this paper implemented a framework named Extensible Real Time SoftwareDesign Inconsistency Checker (XRTSDIC). The framework enables software engineers to have real time feedback on model inconsistencies throw light into the issues early as it is wise to use a stitch in time and avoid eight. The consistency checker not only exploits consistency rules but also viewpoints besides supporting a degree of formal tolerance for inconsistencies. This makes the proposed system flexible with user description while resolving inconsistencies. Our empirical evaluation shows that implemented approach is comparable with previous approaches with significant improvement in speed, scalability and accuracy in detecting inconsistencies in softwaredesign models. The prototype demonstrates the proof of concept. Index Terms – tracking inconsistencies, unified modelling language, softwaredesign models.
In its simplest form, design diversity involves the 'independent' 10 creation of two or more versions of a program, which are all executed on each input reading so that an adjudication mechanism can produce a 'best' single output. Here the versions may be developed from the same specification, or the higher level (and usually more informal) engineering requirements may be used to produce diverse formal specifications. Typically, the teams building the versions work 'independently' of one another, without means of direct communication (indirect communication may still occur: for example one team may discover faults in the common specification, causing the project managers to issue a correction to all teams). The teams may be allowed complete freedom of choice in the methods and tools used, or they may have these imposed upon them in order to 'force' diversity (e.g. different programming languages). In the former case, the hope is that identical mistakes will be avoided by the natural, 'random' variation between people and their circumstances; in the latter, the same purpose is pursued by intentionally varying the circumstances and constraints under which the people work to solve the given problem.
Aiming at the system platform of low temperature plasma equipment in laboratory, in order to construct networked measurement and control system, the networking scheme based on CAN bus and Ethernet technology is proposed as follows, according to the characteristics of each equipment in the system. Firstly, the underlying device nodes are connected by CAN bus to form a CAN network. Then, the CAN network accesses the Ethernet through the CAN-Ethernet gateway. In this way, the system can be operated by local host computer and remote host computer. The system structure is shown in Figure 2. Because the communication between host computer and gateway is only through Ethernet, there will be no conflict in Ethernet communication when local control is carried out. In addition, the hardware cost of this scheme is low, but the softwaredesign is relatively difficult.
The Nim Game application was obtained from a textbook that introduces object-oriented softwaredesign in Java programming language . In this application, a user player takes turn with a computer player to remove sticks from a pile of sticks, via a graphical user interface. The player who removes the last stick loses. The user is able to configure the game by specifying the number of sticks to begin with and which player plays first. The application will display the number of sticks left in the pile, display the number of sticks last taken by each player, and report the winner when the game is over.
The fundamental notion behind model-driven engineering is that completely automated transformation of models to code should be possible. To achieve this, you have to be able to construct graphical models whose semantics are well defined. You also need a way of adding information to graphical models about the ways in which the operations defined in the model are implemented. This is possible using a subset of UML 2, called Executable UML or xUML (Mellor and Balcer, 2002). I don’t have space here to describe the details of xUML, so I simply present a short overview of its main features. UML was designed as a language for supporting and documenting softwaredesign, not as a programming language. The designers of UML were not concerned with semantic details of the language but with its expressiveness. They introduced useful notions such as use case diagrams that help with the design but which are too informal to support execution. To create an executable sub-set of UML, the number of model types has therefore been dramatically reduced to three key model types: 1. Domain models identify the principal concerns in the system. These are defined
ABSTRACT: Object oriented software engineering is a softwaredesign technique that is used in softwaredesign in object oriented programming. The object oriented design is used for developing the new modules in the software systems. It is used for applying the identified requirements. In the MOOD metrics the new project is developed by using various components and these factors helps in the maintainability of new project. If we talk about CBSE, i.e. component based software engineering it allows us reusability of existing software components into new software development. Here we are going to design a automation tool using genetic algorithm which will helps us to find the compatibility of components so that developer can properly integrates them and can enhance the maintainability of software project.
The Matlab modelling used to predict the performance of the concept engine was deficient in several facets. Not all those aspects were foreseeable and were only evident with information from the prototype test. The project methodology was shown to be complete and allowed for valid conclusions about the original design concept and the modelling employed to justify and produce the prototype. Future work could address the thermodynamic deficiencies and reduce friction, but the engine currently shows little potential as a viable design alternative to conventional engines. The concept engine could form the basis for further research into the advantages of the thermodynamic cycle it was created to employ. The Matlab model and thermodynamic cycle have positive attributes as quantified by the engine test. They may have other future applications.
A low cost sensing solution for measuring barometric pressure and temperature is BMP 180 which is developed by Bosch. The sensor is soldered onto a PCB with a 3.3V regulator, I2C level shifter and pull-up resistors on the I2C pins. The BMP180 is the next-generation of sensors, and replaces the BMP085. The advantage of using this sensor is that it is completely similar to the BMP085 in terms of firmware/software. The XCLR pin is not physically present on the BMP180 so if we need to know that data is ready we will need to ask the I2C bus. Along with the temperature module, the air pressure could be measured in mili bar (mb).
The strength of co-simulation for testing software has been proved by the fact that the functional correctness can be verified and errors can be fixed before running the software on the real setup. In this way the ’first time right’ principle of developing software becomes an easier goal, because now the software can also be verified on functional and timed behaviour. However the results depends on the quality of the model. An incorrect or not accurate enough model can give the idea that the software might be right while this is not the case. Co-simulation allows for concurrent engineering, because the software can be developed while the setup might be still under construction. Another advantage is that co-simulation does support rapid prototyping, because features can be verified in different design environments without the need to build the setup. It can be concluded that co-simulation is a powerful tool in heterogeneous system design and especially for testing embedded software in a model-driven design approach, which brings engineers from different disciplines in a natural way together.
Abstract—Software architecture is the process of defining solution that meets all of the technical and operational requirements. It involves a set of related software elements and their relationships to be constructed afterwards in the rest of development phases. A good software architecture design obviously ensures the quality of software product. Typically, the changes of software architecture model during the development phases may effect the expected design rationales, its performance and the complexity of the software product.
Having regard to the above, the general conceptual graphical scheme of the process model of the life cycle of the innovative IT development in terms of import substitution includes the life cycle processes in the context of the system that are not involved in the LC processes in the context of software, while the general graphical scheme itself acquires the following form (Figure 9). Figure 9 also shows process groups that are formally not related to the development of an innovative IT solution outside the import substitution project (for example, systemic or open-source import substitution software). But in terms of the import substitution project, which involves the development of the applied software or software tools, the requirements of import substitution conditions also apply to the characteristics of the system (for example, the hardware and software complex), modifying them in accordance with the requirements of the import substitution project. The processes of software life cycle in terms of import substitution are marked with filling.
The objective of software testing is to locate and fix the problem to improve quality. Quality is the main concern of software development process. Without measuring the quality, we cannot be sure of the value of the software. High quality product means better valuable software from the user’s point of view. Only testing methods are widely used to ensuring the quality of the software. Quality of the software cannot be measured in a single way; it depends on the various aspects like functional, structural and process attributes.
One could argue that web browsers should provide spell and grammar check features for their users. Internet Explorer, the most used browser (Stat- Counter, 2010), offers no checking. Firefox offers spell checking only. Apple’s Safari web browser has non-contextual spell and grammar checking. Application developers should not wait for the browsers to catch up. Using a software service architecture, applications can provide the same quality checking to their users regardless of the client they connect with. This is especially rele- vant as more users begin to use web applications from mobile and tablet devices.
5. Aspect Oriented Exception Handling Patterns Exception handling has been deployed as a key mechanism in implementing software fault tolerance through forward and backward error recovery mechanisms. It provides a convenient means of structuring software that has to deal with erroneous conditions . In , the authors addresses the weaknesses of exception handling mechanisms provided by mainstream programming languages like Java, Ada, C++, C#. In their experience exception handling code is inter-twined with the normal code. This hinders maintenance and reuse of both normal and exception handling code.
As a bridge between the data concentrator and the terminal node of the gas meter, the repeater sends the instructions issued by the concentrator to the terminal node, and uploads the data from the terminal node to the data concentrator. Because the repeater is powered by lithium-ion batteries, it uses the same low-power design as the gas meter. When the repeater is awakened to have the data received, the data is parsed, and if the destination address of the data is the concentrator, the data is forwarded directly to the concentrator, and if the data address is a gas meter node, the wake-up instruction is sent first, and then the instruction is forwarded to the terminal node.
A. Software Engineering for Smart Healthcare Applications Healthcare industry is very dynamic and incorporates technologies into their processes so as to improve the quality of life of patients and efficiency. At times, it is subjected to regulatory policies and other health compliance requirements and as such, health care systems must meet the required standards. By adapting information technology, e- health was introduced, later the widespread of mobile technology introduced m-health . As advancement in technology healthcare is also transforming and adapting new technology called smart healthcare. Mainly these applications are developed for chronic patients, taking care of elderly persons, physical fitness, etc. . To develop a quality, suitable and most effective application, various challenges are encountered. The challenges identified are:
Lalji Prasad,Aditi Nagar has defined a work on the analysis of software system for different structural and object oriented metrices. This metric based component estimation along with relationship analysis is performed under the procedure based analysis. Author discussed the metrics such as LOC, cyclomatic complexity, cohesion and coupling metrics. Author defined the analysis under the class level analysis so that the software product error detection and correction can be performed over the system. The estimation of software system under the operational measures is also performed to analyze the software quality. The operational features of the project and product is also discussed along with coupling analysis so that the estimation of software related metrices will be obtained. The paper has also discussed the software coupling measurement under the structural analysis. Zeeshan Ali Rana has defined an estimation on software products to analyze the software system under defect analysis for object oriented software system. Author defined the work to perform the defect prediction in the software system and analyze the software system
Design patterns are used as guidelines for faster and better understanding of software systems during software development. A design pattern has its own unique intent and describes the roles, responsibilities, and collaboration of participating classes and instances. Thus, by extracting design patterns from source code, we are then able to reveal the intent and design of a software system.In this paper we have addressed some design patterns. The approach to reverse engineer dynamic design patterns has been discussed here. we have taken three design patterns so far and proposed some techniques for extracting them from the java source code.
Design is a depiction, planning and making a sketch or arrangement of several separate elements into one whole unit. The system is a group of integrated elements with the same intent to achieve a goal. The IT Asset Management System aims to provide an interactive information system that provides information, modeling and data management .
The criterion serves as a guideline to try and get the best possible system to meet the needs of the patient and also the operators of the system. All the sections of the criteria were give a 1 to 5 grading scale; where 1 means that the criteria section was not met and 5 means the criteria was met. Each idea that was brainstormed was given a mark in accordance to the grading scale, and then the best score was taken and developed further. The grading was done by analysing the designs objectively by use of research data and simulation. The chapter will look at the designs comparing the pros and cons of the devise parts that were nominated to be redesigned. The software was modified section to section, and also through trial and error. The hardware sections will first be analysis and the reason why the part was chosen will be given.