ITM 5400 - Chapter 1 - Flashcards
What is information technology?
Refers to the combination of hardware, software, and services people use to manage, communicate, and share information
What is Systems Analysis and Design
SAD is a step by step process for developing high quality information systems
Information Systems combines what three things to perform business functions?
Technology
People
Data
What does a s systems analyst assist with?
Design and development of ISs using business knowledge, analytical and critical thinking skills and strong communications skills
What is a system?
A set of related components that produce specific results
What are the 5 components of an Information System
Hardware Software Data Processes People
What is a business model
an abstract representation of the operations of a business. It documents the processes used by the organization to ID changes that can improve operations
What is a business process
Transactions, events and results that can be described and documented. Often a graphical representations of transactions
Top managers
Strategic planning information
Middle Managers
Tactical Planning Information
Supervisors and team lead
Day to Day performance
Operations Employees
information to do the jobs and make decisions
T/F Strategic planning is the process of setting short term goals
False. Strategic is long term, tactical is short term
Operation feasibility means
that the proposed system will be used effectively after it has been developed
Why does a systems analyst need good communication skills?
Communication skills are needed to perform job successfully. You need to communicate your ideas, act as a liaison between the business and IT Department, and resolve questions about what the system should do.
What is not a step in a payback analysis?
Determine the return on investment
What is the first step in planning an internet research strategy.
identify information requirements
What business information system allows users to answer questions about the business using a large knowledge base?
Knowledge Management System
What BIS includes systems such as email, word processing, automated calendars and collaboration tools?
User Productivity system
What is a graphical representation of a concept or process?
Modeling
What is a semi-working model of an information system that allows users to see what the final system will look like?
Prototype
What allows design and documentation of a computer system?
Computer Aided Systems Engineering
What are the 7 steps in System Development Lifecycle?
Planning Analysis Design Construction Testing Implementation Maintenance and enhancement
What system development method views systems in terms of objects that reflect real world items, i.e. customers, orders and items?
Object oriented. May be time consuming, but allows reuse of objects which may speed future development
What system development method involves building and constantly evolving an application by user requirements
Agile Method. Runs in short iterations to release testing working software every 2 - 4 weeks
Who acts as the liaison between business and the IT department?
Systems analyst.
What are 4 duties of a Systems Analyst
- ID and document user requirements
- translate requirements to system design
- communicates design to business in business terms and IT in technical terms
- constantly interacts with users, managers and IT to meet user needs
