Chapter 1: Introduction to Systems Analysis and Design

Why TP systems are efficient?

Because they process a set of transaction-related commands as a group rather than individually. To protect data integrity, if any single element of a transaction fails, the system does not process the rest of the transaction.

What is an B2C (business to consumer)?

Such as eBay.com has transformed traditional business auction concept into a popular and successful method of selling goods and services.

What is information?

a data that has been transformed into output that is valuable to users.

What is modeling?

a graphical representation of a concept or process

What is a server farm?

a large concentration of servers working together

What is System analysis and design?

a step-by-step process for developing high-quality information systems.

What is a supply chain?

all the companies who provide materials, services, and functions needed to provide a product to a customer.

What is Object-oriented (O-O) analysis?

combines data and the processes that act on the data into objects.

What is Information Systems?

combines technology, people, and data to provide support for business functions such as order processing,inventory control, human resources, accounting, and many more.

What is a business process modeling notation (BPMN)?

complex models, includes standard shapes and symbols to represent events, processes, workflows, and more.

What is an application software?

consists of programs that support day-to-day business functions and provide users with the information they need.

What is data?

data consists of basic facts that are the system's raw materials.

What are processes?

describe the tasks and business functions that users, managers, and IT staff members perform to achieve specific results.

What is prototyping?

early working version of an information system

What key components does information system have?

hardware, software, data, processes, and people.

What is inference rules?

identify data patterns and relationships

What is network administration?

includes hardware and software maintenance, support, and security

What is an eCommerce?

internet-based systems involve various hardware and software designs, but a typical model is a series of webpages that provides a user interface, which communicates with database management software and a web-based data server.

What is agile/adaptive methods?

involve building and constantly adjusting a series of prototypes to user requirements.

What is database administration?

involves data design, management, security, backup, and access systems

What is a system?

is a set of related components that produces specific results.

What is a business process?

is a specific set of transactions, events, and results that can be described and documented.

What is a horizontal system?

is a system, such as an inventory or a payroll application, that can be adapted for use in many different types of companies.

What is a business profile?

is an overview of a company's mission, functions, organization, products, services, customers, suppliers, competitors, constraints and future direction.

What is a vertical system?

is designed to meet the unique requirements of a specific business or industry, sch as an online retailer, a medical practice, or an auto dealership.

What is an electronic data interchange (EDI)?

is enabled computer-to-computer data transfer, usually over private telecommunications lines.

What is hardware?

it consists of everything in the physical layer of the information system.

What is a knowledge base?

large database that allows users to find information by entering keywords

What is an system software?

managers the hardware components, which can include a single computer or a global network with many thousands of clients.

What are examples of a system software?

operating system, security software that protects computers from intrusion, device drivers that communicate with hardware such as printer, and utility programs that handle specific tasks such as data backup and disk management.

What is an enterprise applications?

order processing systems, payroll systems, and company communications networks.

What are people (stakeholders)

people who have an interest in an information system.

What is a transaction processing (TP) system?

process data generated by day-to-day business operations. include: customer order processing, accounts receivable, and warranty claim processing

What is computer-aided software engineering (CASE)?

provide an overall framework for system development.

What is a enterprise resource planning (ERP)?

provide cos-effective support for users and managers throughout the company.

What is business support system?

provide job related information support to users at all levels of a company.

What is user support?

provides users with technical information, training, and productivity support.

What is systems support and security?

provides vital protection and maintenance services

What is an enterprise computing?

refers to information systems that support company-wide operations and data management requirements.

What is software?

refers to the programs that control the hardware and produce the desired information or results.

What is Quality Assurance (QA)?

reviews and tests all applications and systems changes to verify specifications and software quality standards

What is an B2B (business to business)?

sales will increase sharply as more firms seek to improve efficiency and reduce costs.

What is a business process model (BPM)?

simple, graphically displays one or more business processes, such as handling an airline reservation, filling a product order, or updating a customer account

What is web support?

specialists design and construct web pages

What does software consists of?

system software and application software

What is an application development?

systems are developed by teams consisting of users, managers, and IT staff members

What is a Moore's Law?

the number of transistors on an integrated circuit chip would double about every 24 months.

What is structured analysis?

time tested and easy to understand. Uses a SDLC (systems development life cycle). Systems Planning (preliminary investigation report) Systems Analysis (system requirements document) Systems Design (system design specification) Systems Implementation (functioning system) Systems security and support (fully operational system)

What is a (RFID)?

uses high frequency radio waves to track physical objects

What does a systems analyst do?

valued member of an IT department team who helps plan, develop, and maintain information systems.