Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
In the past, what were some of the choices company had for development strategies? |
◦ Companies either developed software in-house or purchased a software package ◦ Hired consultants to perform the work |
|
|
What are the choices that companies have today for development strategies? |
◦ Application service providers ◦ Web-hosted software options ◦ Firms that offer enterprise-wide software solutions |
|
|
What are the features of traditional development? |
Development typically follows one of three main paths: In-house development with internal staff Purchase of a software package with possible modificationUse of outside consultants Many applications require substantial desktop computing power and resources Security issues usually less complex than Web-based systems |
|
|
Web-Based Systems Development features |
Systems are developed and delivered in an Internet-based framework such as .NET or WebSphere Treats the Web as the platform, rather than just a communication channel Easily scalable, and can run on multiple hardware environments Used for customer relationship management, order processing, and materials management Treats the software application as a service that is less dependent on desktop computing power and resources Limits in-house involvement to a minimum as vendors install, configure, and maintain the system Requires additional layers, called middleware, to communicate with existing software and legacy systems |
|
|
Evolving Trends: Web 2.0 and Cloud Computing |
•Web 2.0 will enhance interactive experiences •Wikis and blogs •Social networking •Cloud computing may offer an overallonline software and data environment |
|
|
What is SaaS? |
Software as a Service |
|
|
What is an Application service providers (ASP)? |
A firm that delivers a software application, or access to an application, by charging a usage or subscription fee |
|
|
What is an Internet business services (IBS)? |
Also called managed hosting Web-based support for transactions such as order processing, billing, and customer relationship management |
|
|
What is the most important consideration when choosing an in-house software development solution?
|
The total cost of ownership (TCO) |
|
|
What are the benefits of in-house developed software? |
• Satisfies unique business requirements • Because no commercial software package can meet their unique business requirements • Minimizes changes in business procedures and policies • Installing a new software package almost always requires some degree of change in how a company does business • Meets constraints of existing systems • Any new software installed must work with existing systems • Meets constraints of existing technology • The new system must work with existing hardware and legacy systems • Develops internal resources and capabilities • Develop and train an IT staff that understands the organization’s business functions and information support needs |
|
|
What are the benefits of purchasing a software package? |
• Lower costs • A software package almost always is less expensive than in-house • Requires less time to implement • Packages have already been designed, programmed, tested, and documented • Proven reliability and performance benchmarks • Major problems probably have been detected already and corrected by the vendor • Requires less technical development staff • Companies can reduce the number of programmers and systems analysts on the IT staff • Future upgrades provided by the vendor • Improvements and enhancements included in a new version or release • Input from other companies • You can contact users in other companies to obtain their input and impressions |
|
|
What is the financial analysis tool payback analysis?
|
Determines how long it takes an information system to pay for itself through reduced costs and increased benefits |
|
|
What is the financial analysis tool Return on investment (ROI)? |
Percentage rate that compares the total net benefits (the return) received from a project to the total costs (the investment) of the project |
|
|
What is the financial analysis tool Net present value (NPV)? |
Total value of the benefits minus the total value of the costs |
|
|
What is a context diagram? |
A model diagram that is a high level view of a system that defines the boundaries between the system and its environment. |
