Research Paper On Software Modeling

Logical and physical models represent the key elements and processes of the software development. The logical model describes the processes, and data, in as much detail as possible, without giving regard to how the system will be implemented. Logical data models include

Purpose of this assignment: To demonstrate understanding of principles of software design, in relation to specific programming scenarios, and how these principles relate to the software development life cycle.

In hindsight, it is clear to see that without the depression in 1929 Hitler would not have been able to gain the support from the German public that was needed in order to achieve control. The death of Stresemann in 1929, could not have occurred at a more devastating time. Firstly, the Wall Street crash brutally hit Germany in October of 1929 sending financial markets worldwide into a tailspin with disastrous effects, mortifying the Weimar government. After the Wall Street crash, the German economy became enormously vulnerable as it relied mostly on the loans given to her by America, under the Dawes plan. However, now that America was also in an economic crisis, they ordered back their loans.

As design moves forward, the development teams begin to generate a tremendous amount of detailed information about the system. Modules, classes, data fields, data structures, forms, reports, methods, subroutines, and tables are all being defined in substantial detail in the design model. The key design tasks are decomposing the application into layers, clients, and servers, distributing the “pieces” across hardware platforms, and defining the physical network and protocols.

translating the models into programming code. For data modeling class diagrams can also be used.The classes in a class diagram represent both the main elements, interactions in the application, and the classes to be programmed.

Unified Modeling Language is used in the field of Software Engineering which depicts the view and documentation of a software system. The UML diagram helps in code generation but much information is lost in code generation. It uses object oriented design concepts. This was proposed by Grady Booch, Ivar Jacobson and James Rumbaugh. The paper provides the statistics and usage of UML in various phases of Software Development. The Client Involvement with UML components is presented and analyzed. The paper discusses how the UML is used and its extent of use and how successful in implementing it.

In Object-orientated approach methodology, a system is viewed as an object (Govardhan & Munassa: 71). This approach intergrades data and processes into objects. It emphasizes the construction and testing of object models. This technique uses UML diagrams such as Communication Diagrams, which show the relationship between objects, Development Diagrams which show how a complete system will be deployed on one or more machines, the Class Diagram and Sequence Diagram.

The main advantage of this approach to benefit from the UML standard modeling notation and the training done with software engineers to model the software with the UML notation

There are various methods of developing software models which depends on the projects objective and outcomes . There are multiple methodologies that are made in order to attain the goal. Software development models defines the different steps of the model and the way they are executed.

Nowadays, there is no stable model transformation approach for mobile application. Model transformation is one of the prominent features and the rising research area of Model Driven Engineering (MDE). There is still gap between software designer and developer because of the heavyweight of graphical modeling language like Unified Modeling Language (UML). The textual modeling language attempts to fill the gap between modeling and implementing in the development lifecycle. The proposed research work intends to transform text-based model oriented program to mobile application. UML Programming Language (Umple) uses the concept of textual modeling as a technique to reduce differences between the model and the code. The technique of model transformation is defined by meta-model and transformation rule. The proposed work intends to construct the source meta-model for model oriented program and the target meta-model for mobile application. And it also intends to define model transformation rules to bridge the gap between source and target meta-model by using ATLAS (ATL) transformation language. The proposed system expected to generate the android source project and create, retrieve, update, and delete (CRUD) android apps.

Please answer all questions, meeting the minimum word count. Do not copy and paste anything, all words need to be typed by your own fingers.

The Unified Modeling Language (UML), with its fourteen various diagram types, is a standard notation for the modeling of real-world objects as a first step in developing an object-oriented design method. Although a lot of semantics in the UML, we can widely describe in the more details the system that will be developed, but we cannot make sure the correctness and consistency of the designed model. Therefore, it is important to reduce the error from verifying user model in the early phase, When those errors are discovered early in the design process it is easier and more cost helpful to fix than if they were discovered at a later phase. The issue of consistency and inconsistency have appeared since its infancy of the software development. These problems are bigger still in UML software development, and are mainly reason of the presence of multiple-views (models) for the same system, and It can contain potentially contradictory system specifications. In other meaning, the UML diagrams describing a software must be consistent because inconsistencies between all diagrams in UML It will be the source of the increase defects and errors in the software systems. It is therefore important that these inconsistencies be detected in the system, analyzed and hopefully fixed before implementing it. Without consistency analysis, it would be hard to evolve the model and ensure that the collaborative effort is coherent. Although there are a lot of research and studies that focus on the

Though many people interchange system engineering models and software engineering life cycle models, they are defined as two different approaches to software development. System engineering is the technical and technical management process that results in delivered products and systems that exhibit the best balance of cost and performance. As the program progresses from one phase to the next one, so does the system engineering process. It deals with the overall management of engineering project during their life cycle. Its main focus is knowing what the clients and end users wants and needs are satisfied and developing just that all the way through the system’s entire life cycle. Whereas, on the other hand, software engineering focuses on the quality of the product or system, how cost effective it is, is it done within the time-constraints given, whether it is easy to maintain and enhance, and does it work as the requirements defined. Its main focus is on delivering a product that meets the requirement specifications. There are so many models to choose from, as it all depends on what the project needs and entails. Depending on the requirements, allows for the choice of what mode to use.

Structured Programming, Nassi-Shneiderman Structure Charts, Formal Proofs of Correctness, and Structured Analysis and Design are all tools to help with analysis and design of software. Each topic is described briefly below with respect to software development and project management.

The purpose of the study is to show the capability to understand the set of laws that are the part of principles of the software engineering. In this paper, it is discussed that there are many laws related to the software engineering but only few of them are to be addressed. Boehm first and second law, Conway’s laws, Parnas laws & Corbato law were discussed with examples. There are two relationship processes that are also discussed,