Software Design Of A Computer Based System

With so many different Software Architectural Styles out there, there are three that are most

In order to establish an architecture for a system, we need to know the purpose and scope of the application, its importance and relationship to the overall strategic goals of the organization based on known requirements of the system being developed. However in an Agile environment where the requirements are groomed iteratively and change is constant, establishing architecture and design would be a daunting task. Especially if the system being developed is large enterprise level solution, iterative architecture and design could result in a lot of rework and redundancy. If there are many integration points and functionality spans across multiple applications, defining enterprise level architecture helps the software being developed to align with strategic goals of the enterprise, helping business capabilities to be shared across organizations. But establishing such architecture in an Agile environment would be challenging. This paper addresses this issue and establishes a process for architecture development for enterprise level applications. The paper defines a process to develop a software solution which spans across multiple legacy applications using Agile principles’. The approach explained in the paper has been adopted for the development of software which modernizes legacy data capture and is intended to establish a framework for enterprise level services in the future. The solution spans across 6 legacy software systems.

Transnational corporations refer to “corporations that have their home base in one country and branches, or affiliates, in other countries” (Mooney 2015, 213). An example of such corporation is Microsoft. Microsoft was founded by Bill Gates and Paul Allen in 1975 (Microsoft, 2016). It is “the worldwide leader in software, services, devices and solutions that help people and businesses realize their full potential” (Microsoft, 2016).

“Enterprise architecture framework maps all of the software development process within the enterprise and how they relate and interact to fulfill the enterprises mission.”[1] Frameworks are conceptually created to eliminate conflicts in the development phase. An easy transition and systematic architecture are essential functions to process an enterprise. The following paper discusses TOGAF in detail, along with DoDAF and FEAF.

Architecture is a long-term concern which takes significant amount of time, and this increased amount of time to market usually translates into reduced opportunity. One of the major reasons that software architectures are so often average is that architecture frequently takes a back seat to more mundane concerns such as cost, time-to-market, and programmer skill. Thus, business forces tend not to allow

Once the proposed project is understood and it is agreed upon that the system requirements will be supported, a solid foundation must be built to support the development of the system. Models and other documentation are used to aid in the visualization and description of the proposed system. Process models are used to identify and document the portion of system requirements that relates to data. Processes are the logical rules that are applied to transform the data into meaningful information. The three main tools used in process modeling are data flow diagrams, which shows how data moves through an information system; a data dictionary, which is a central storehouse of information about the system’s data used by analysts to collect,

Different software development processes have software architecture as a part of the process Rational unified process Spiral development method Agile development method Evolutionary rapid development

Network architecture is the configuration of an interchanges system. It is a structure for the determination of a system's physical parts and their practical association and setup, its operational standards and systems, and information organizations utilized as a part of its operation. Network Architecture gives the subtle element outline of a system. It is utilized to arrange all the system layers regulated in sensible structure by portraying each one stage in subtle element. It is likewise dependent upon the complete working meanings of the conventions. The structural engineering is emphasized in a circulated processing environment and its unpredictability can’t be comprehended without a structure. Subsequently there is a need to create provisions or systems to design a diagram of a system. The first use of the expression "software architecture planning" put it particularly in the arranging period of a task. While these arrangements had connection to physical items, the term finished not. At the point when a system of associated gadgets, for example, phones and PCs, was arranged out, the outcome was a system building design schematic. The real plans were for the most part extremely fundamental; they might be all the more a rule than else other possibilities. In time, the system construction modeling schematic started to hold extra material identifying with the system. Particular physical articles were allocated positions dependent upon the

>IT architecture design is evolved by the stages of Application Silos, Standardized Technology, Rationalized Data, Modular.

It is very difficult to represent the architecture in the set of boxes and arrows which shown on these diagrams.So as the remedy,author has proposed the description of a software architecture using several concurrent views,each one address one particular set of concerns.

The design should provide a complete picture of the software, addressing the data, functional, and behavioral domains from an implementation perspective. Each of these characteristics is actually a goal of the design process. To evaluate the quality of a design representation, we must establish technical criteria for good design. Design should exhibit an architectural structure that

The (OS) operating system is the best example of system software. An operating system manages a computer’s hardware and software and provides sources for computer programs. Most application programs require an operating system to function. There are numerous operating systems (OS) one may choose to install on their computer. Each OS will have different looks and functions that differ from the others. Windows 10 is a popular OS that is used widely around The United States. System software and application programs are the two main types of system software.

Software documentation is an integral part of the software development process. For many different kinds of systems, different attributes of the system such as performance, reliability, security, and modifiability are equally as important as the output of the system. Software architecture documentation is an important component of this process because it allows for cooperation, synchronization, collaboration, on different elements that need to be documented and communicated among different parties that are stakeholders in the system. The documentation can serve many parties that have a stake in the system such as the designers, the developers, the project manager, the end-users, the investors, and even the marketing department.

Abstract: Software architecture is important because of communication among stakeholders, Design decisions for understanding software, transferable design of a system. Software architecture represents a common design of a system that most if not all of the system 's stakeholders can use as a basis for mutual understanding, negotiation, agreement, and communication. Software architecture manifests the earliest design decisions about a system, and these early bindings carry weight .It is also the earliest point at which design decisions governing the system to be built can be analyzed. Software architecture constitutes a relatively small, intellectually understandable model for how a system is structured and how its elements work together, and this model is transferable across systems. There are different types of architectural styles: Distributed architecture, data flow architecture, implicit asynchronous architecture, data centered architecture, hierarchical architecture and interaction oriented architecture. This paper compares all the architectural styles and aspects of comparison are category, styles, advantages, disadvantages, examples.

Definition of Wireless LAN is Wireless Local Area Network (WLAN). WLAN is a wireless computer network that connect two or more devices by using a wireless distribution method within a limited area such as home, room, school, computer laboratory, library or office building. Besides, WLAN gives users the ability to move around within local coverage area and yet still be connected to the network. Most modern WLAN’s based on IEEE 802.119 (extended protocols for WLAN), marketed under the name of Wi-Fi.