Thursday, February 20, 2020

Internet Vulnerability Assessment and Penetration Testing Essay

Internet Vulnerability Assessment and Penetration Testing - Essay Example Only few years back, one could find large numbers of online grocery stores within Florida. Having large numbers of families and elevated levels of Internet penetration, this part of US was considered to be the perfect region to offer this type of facility to the consumers. (Gralla, 2006) However, most of such Net grocers are no more existing and only little grocery sales are carried through this contemporary service. According to a research, merely 20 to 25 per cent of early online shoppers are still using this latest channel. Most of the online buyers of grocery have gone back to conventional grocery shopping. (McAulay, 2009) What exactly was not right? Why have customers rejected online grocery shopping? What features of online shopping pushed them back to conventional way of shopping? And what characteristics of conventional way of shopping attracted them back? These questions will be discussed while evaluating Internet Vulnerability and Penetration within consumers. To answer above mentioned questions, 20 American families with children were chosen. They were asked regularly over the intervening period about their experience of shopping. Some anticipated findings of this piece of research are given below. Internet penetration for shopping is anticipated to increase in the beginning. Time is a crucial reason for choosing internet for grocery shopping – which will prove to be an inadequate resource available for families with children. (Napier, 2005) Online buyers are usually fairly willing to pay little more for the offered facilities of picking and delivering groceries so that they can utilize their valuable time on activities that are more significant for them. Most of the times, internet penetration for online shopping is due to its flexibility. Online buyers think they can buy anything anytime to suit their schedule, 24 hours a day. They do not have to wait for the shop to open or re-open when they have time to shop. Online buyers usually

Tuesday, February 4, 2020

Describe the differences between a software analysis model and the Essay

Describe the differences between a software analysis model and the design model - Essay Example After the project pass the feasibility study, the estimation of cost, time and efforts is done. Incorrect estimation of these resources may lead to cost overruns and might prove fatal to the project. The result of the software analysis model is a detailed SRS (Software Requirement Specification) document describing of the system’s functionality as per the customer’s requirements. This document would define the system and serves as the base for rest of the processes in the software development life cycle (SDLC). Software design model aims to design the conceptual model of the system, which defines various processes involved in the system and also the data used at each process. The software design can be expressed using various diagrams including activity diagrams, sequence diagrams, collaboration diagrams etc. They represent the flow of information as well as the entities involved within the system, based upon which the actual implementation and coding of the software is done. One of the important models for software design is object-oriented design model, in which we identify various objects that occur in the solution domain and the relationship between these objects. After this, detailed design of the object model is done. Other important software design models are prototyping and spiral lifecycle models. ... Reliability of software is of utmost importance towards implementing critical applications, for example: the software used in aerospace systems. Reliability of the software also increases its availability for any additional development. Also, software reliability enhances customer satisfaction, thus, resulting in the low maintenance demands of the system. Another important characteristic of reliable software is that it effectively handles wrong input from the user and prevent from any system failure as a result of the wrong input. Further, reliable software continuously monitors any defects or faults in the system and quickly report/detect these faults. Reusability: A good software design should make the components of software development as reusable. Reusability of software objects reduces the development time and also increases programmer’s productivity and the software quality. However, dependencies of software components on the other parts of the software reduce its reusab ility, and thus reduce the number of contexts in which these components can be invoked in. Also, software reusability depends on the programmer’s understanding of the system and his capability to reuse the components to make a better and an efficient system. Another one of the major advantages of reusability is the reduced development costs and faster software deployment. However, there are issues related to software reuse for example: lack of organizational support to institutionalize software reuse, intellectual property rights and contractual problems of software reuse Flexibility: We may require changing certain features of the existing software in terms of adding more functionality