Continuation of Design principles

I will pay for the following article Continuation of Design principles 3. The work is to be 7 pages with three to five sources, with in-text citations and a reference page. The detailed architectural model is used to achieve the level of security in the system, the performance of the system as well as the effectiveness and efficiency (Coulouris, Dooimore, and Kindberg, 2001). There are three (3) forms of the system architecture include: the client based, server based and the client-server architecture. As the proposed system for ‘Electronic Credit Checking and Mortgage Approval’ is online, therefore, I have chosen the client server architecture. Architecture Design The client-server architecture for the proposed system that presents the client has to place a request to the web server by utilizing the web browser (Internet Explorer, Google Chrome, etc.). The web browser takes the Hypertext Transfer Protocol (HTTP) request, Files Transfer Protocol (FTP), data, etc. to the web server of the Mortgage Company. the web server would interact with the database server for the relevant information. The database server would send a SQL query to the database and the database returns the information against the query. The database server would reply to the web server with the information received from the database. The web server would display the information on the web browser of the client. The web application would be deployed on the web server or application server. the database server would contain the database as shown in the following diagram (Kambalyal, n.d). The system architecture that has been used for deploying the web application is 3-tier architecture that provides higher flexibility. high security can be implemented at each level of the service, and high performance due to sharing of tasks between servers, moreover, it can be extended (scalable) with the requirements of the Mortgage Company (Kioskea, 2012). Design Notes The client has to use the web browser to access the web application over the internet, in order to provide security the client’s request has to be passed through the firewall deployed in the computer network. The firewalls not only filter the outbound traffic (the clients outside of the Mortgage Company) but also filter the inbound traffic (the clients / employees of the company) (Vicomsoft, 2012). The servers would process the request of the client and returns the required information in the form of HTML, JavaScript, PHP / ASP.Net etc. The same process would be followed whenever the client requests the information from the servers. USER INTERFACE DESIGN Process In order to design the user interface, I have chosen the first use case (process) – the online application for registration with the bank (Mortgage Company). This selected process would be initiated by the client when he / she want to register him / her with the company by providing the requisite information. Upon successful completion of the registration process, an acknowledgement would be issued by the company containing user name and password of the client. The client has to provide information / data, the system / web application would perform the validations to check whether the format of the entered data is correct for the respective field.

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