Systems Planning
B2C and B2B
Ecommerce includes two main sectors
Projects
Objects possess characteristics
Deliverable
Result of each phase
Server Farm
a large concentration of servers working together
Horizontal System
a system, such as an inventory or a payroll application, that can be adapted for use in many different types of companies
Supply Chain
all the companies who provide materials, services, and functions needed to provide a product to a customer
Data Flow Diagram
because it uses various symbols and shapes to represent data flow, processing and storage.
Systems Planning Phase
begins with a formal request to the IT department, which describes problems or desired changes in an information system or a business process.
Systems Analysis Phase
build a logical model of the new system
Information System
combines technology, people, and data to provide support for business functions such as order processing, inventory control, human resources, accounting, and many more.
Data
consists of basic facts that are the system's raw materials
Hardware
consists of everything in the physical layer of the information system
Application Software
consists of programs that support day to day business functions and manages network operations
Information
data that has been transformed into output that is valuable to users
Processes
describe the tasks and business functions that users, managers, and IT staff members perform to achieve specific results
Business model
describes the information that a system must provide
Scalable
design can expand to meet new business requirements and volumes.
Vertical System
designed to meet the unique requirements of a specific business or industry.
Electronic Data Interchange
electronic commerce between two companies used a data sharing arrangement
Preliminary Investigation
evaluate an IT-related business opportunity or problem
Waterfall model
flows into next phase
Business Rules
generate the output
Empowerment
gives employees more responsibility and accountability
Modeling
graphical representation of a concept or process that systems developers ca analyze, test, and modify
Business Process Model
graphically displays one or more business, such as handling an airline reservation, filling a product order, or updating a customer account.
Legacy System
how a new system will interface with older systems
User Productivity Systems
include email, voice mail, video and web conferencing, word processing, automated calendars, database management, spreadsheets, desktop publishing, presentation graphics, company intranets, and integrated mobile computing systems.
Enterprise Application
include order processing systems, payroll systems, and company networks
Business Process Modeling Notation
includes standard shapes and symbols to represent events, processes, workflows, and more.
Enterprise Computing
information systems that support company wide operations and data management requirements
Users
inside and outside the company who will interact with the system, and IT staff members, such as systems analysts, programmers, and network administrators who develop and support the system.
Ecommerce
internet-based commerce
Business Process
is a specific set of transactions, events, and results that can be described and documented.
Prototype
is an early working version of an information system
Mission-Critical System
is one that is vital to a company's operations
Systems Design Phase
is to create a physical model that will satisfy all documented requirements for the system
Knowledge Base
large database that allows users to find information by entering keywords or questions in normal english phrases
Strategic Plans
long range plans which define the company's overall mission and goals
System Software
manages the hardware components, which can include a single computer or a global network with many thousands of clients
RAD
more like a compressed version of the entire process
App
on mobile devices, the users interact with the system
Business Profile
overview of a company's mission, functions, organization, products, services, customers, suppliers, competitors, constraints, and future direction
Stakeholders
people who have an interest system
Systems Development Life Cycle
plan, analyze, design, implement, and support an information system
System Design Specification
presented to management and users for review and approval
Transaction Processing Systems
process data generated by day to day business operations
Groupware
programs enable users to share data, collaborate on projects, and work in teams.
Business Support Systems
provide job-related information support to users at all levels of a company
Spiral Model
represents a series of iterations, or revisions, based on user feedback
Feasibility Study
reviews anticipated costs and benefits and recommends a course of action based on operational, technical, economic, and time factors.
System
set of related components that produces specific results
Systems Analysis and Design
step-by-step process for developing high-quality information systems.
Management Information Systems
system where managers are primary users
Enterprise Resource Planning
systems provide cost-effective support for users and managers throughout the company
JAD
team based fact finding
Radio Frequency Identification
technology which uses high-frequency radio waves to track physical objects
Systems Support and Security Phase
the IT staff maintains, enhances, and protects the system.
Informational Technology (IT)
the combination of hardware, software, and services that people use to manage, communicate, and share information
System Requirements Document
the deliverable for the systems analysis phase
Systems Implementation Phase
the new system is constructed
Software
the programs that control the hardware and produce the desired information or results
Moore's Law
theory that integrated circuit chip would double about every 24 months
Computer Aided Systems Engineering
uses powerful software to help systems analysts develop and maintain information systems
System Analyst
valued member of the IT department team who helps, plan, develop, and maintain information systems.
Requirements Modeling
where the analysts investigates business processes and documents what the new system must do to satisfy users.