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Middleware Definition
Software that mediates between an application program and a network.
It manages the interaction between fundamentally different applications across a computing platforms.
Middleware is a piece of software that connects various software components or applications so they can exchange data easily.
It includes web servers, application servers, content management systems, and similar tools that support application development and application delivery.
It is especially integral to modern information technology based on XML, SOAP, Web services, and service-oriented architecture.
Middleware Examples: Android
The Android operating system uses the Linux kernel at its core. It provides an
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In the mean times, system analyst need to consider issue in internet banking system such as security issue, in case of occur technical difficulties and connectivity problems while accessing internet banking transactions etc. System analyst need to confirm with the users those requirements through the way of interviews, questionnaires and facilitated meetings. The system requirement can be identified by documenting user needs in using systems analysis tools and technique
Logical Design:
Logical Design After the requirement analysis phase, system analyst can illustrate the internet banking system models in order to validate the business requirements for completeness and consistency. The logical design phase is normally interpreted business requirements into system models to show the system independent of any possible technical solution. In this phase include system analysts, system users and the project managers.
Usually project managers need to ensure that system model meets in standards, structured analysis and design. System analyst can draw system models to classify in logical data models, logical process models and logical interface models that represent data and information requirements (Knowledge), business processes requirements (Process) and system interface requirements (Communication).
Many different object diagrams can be drawn for a logical system models and specifications, represent the state of the system as individual objects, as
“During the object-oriented analysis (OOA) phase object-modeling techniques are used to analyze the functional requirements for a system and create models which reflect the logical design of the system. During the object-oriented design (OOD) phase of the system, models are elaborated upon to include implementation specific details that show how the physical design of the system will come together. OOA focuses on what the system does (its static structure and behavior), OOD on how the system does it (its run-time implementation).”
This step creates model of the software system based on the stockholder’s requirements, then requirements are analyzed again to produce a fine model of the software
The information system’s requirements in the systems planning phase are based on a case summary, potential interview questions, and the systems analyst’s experience in systems planning. One must not only generate requirements based specifically on what users’ state they want or need. Analysts must also generate requirements based on insight into the overall organization and project goals.
Systems analysis is when business hire individuals to analyse their systems to determine what issues are present with their current systems and provide a solution that will fix the issues.
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
* Requirements Modeling * Input * Process * Output * Either of the following two (2) or combined, whichever are applicable:Data and Process Modeling Context Diagram Data Flow Diagram Object ModelingUse Case DiagramClass DiagramSequence DiagramActivity Diagram * Design * Output and User-Interface Design * Forms * Reports * Data Design * Entity Relationship Diagram * Data Dictionary * System Architecture * Network Model * Network Topology * Security * Development * Software Specification * Hardware Specification * Deployment Diagram * Test Plan * Testing * System Testing * Implementation Plan * Project Implementation Checklist *
In this self-starting world, system analysis and design are generally connected with the actions of software development. Systems analysis and systems design are normally theorized as the two main components of a system development. System analysis is the course of exploring a system, detecting problems, supporting the details of a present or planed system, which uses the information to encourage advancements to the system. in the organization which I am employed, there are numerous
Microsoft’s internet information services (IIS) is one such solution. This webs server is designed to run on Windows server platforms. Consequently, it integrates well with Microsoft’s online applications. It features an intuitive graphical user interface that simplifies its installation and use. However, the costs of installing new versions of this web server are high. In addition, its restriction to the Microsoft server OS platform inhibits system flexibility. An alternative to IIS is the Apache web server. This is an open sourced application that can be implemented on a wide variety of operating system platforms. Apache’s integration of a pearl and PHP engine facilitates easy integration with the application programming interface (Gunther, 2006). In addition, this web server is available for free. This makes it a cost effective alternative. Further, Apache’s event-driven architecture enables it to perform ideally even under heavy loads. However, Apache usage involves a relatively strenuous learning curve. The software’s complexity may present an obstacle to its use by new users. Another web server that can be adopted for use in this project is Nginx. This server is easy to use as well as stable. It is also based on an event driven architecture. This architecture makes it an efficient user of system resources even under heavy loads (Tanenbaum, 2001). Nginx’s ease of installation, configuration, and use make it a viable alternative for adoption in
System Analysis is the study where detailed information about the components and requirements of a system, the information needs of an organisation, the characteristics and current components of the systems and the user functional requirements of the systems that is proposed system.
Questionnaires are also disseminated to gather opinions from end users. In addition, analysts will observe the way the current system is used to perform day-day activities, and collect data. Analysis will be conducted on the different types of documentation used to understand certain rules, processes and procedures. Finally, a joint application design (JAD) can be conduct by way of a meeting with end users. The purpose of the JAD is to gather requirements that all parties can agree on (Valacich et al,
Server software: Today’s Web servers come with a variety of servers ranging from HTML editors in search engines to application servers.
Decision support system can be built with requirements gathered from transaction processing system and analyzing them through analytical model to support non-routine decision making. However since building analytical model requires lots of research and gathering information regarding different factors we consider this as implementable in future after required information’s are gathered.
System development can generally be thought of having two major components: systems analysis and systems design. In System Analysis more emphasis is given to understanding the details of an existing system or a proposed one and then deciding whether the proposed system is desirable or not and whether the existing system needs improvements. Thus, system analysis is the process of investigating a system, identifying problems, and using the information to recommend improvements to the system. System design is the process of planning a new business system or one to replace or complement an existing system.
Systems analysis refers to a problem solving technique where a business or procedure is studied and the goals are identified in order to create information systems to help the business achieve their goal more efficiently and easier. Systems analysts obtain feedback from the system users in various ways e.g. interviews, questionnaires etc. More importantly they find out from the users what their specific requirements are regarding the proposed system and then use the information obtained to formulate requirements for the system, the system is then written ensuring that all the requirements and expectations are met.
The interview session has been done by include an open-ended and closed-ended question which are related to the implemented project. Next, sampling technique is executed by system analyst who does evaluation to the current system or prototype. These processes give feedback in evaluation form that filled after tested the system. Lastly, observation is performed by using questionnaire form. According to Burch (1992), the questionnaire is analyzed and transform into structured form that easy to understand. After all information has been collected, structuring of system requirement takes place. It focused on development process modeling which perform “graphically representing the process, or actions, that capture, manipulate, store, and distribute data between a system and environment” (Hoffer, George, & Valacich, 2012, p. 182). In this step, Data flow diagram (DFD) is structured by system analyst using special tools and techniques to create a decision table. According to Hoffer, George and Valacich (2012), decision table is a “diagram of process logic where the logic is reasonably complicated” (p. 200). This table is useful to help system analyst to make a decision toward the project. Then all information’s gained from this phase are documented in System Analysis Report (SAR) that acts as a guideline or reference to the future system development project (Burch, 1992).