Information Systems Flashcards
Role of Information Systems
Operation Excellence New products, service, business models Customer and supplier intimacy Improved Decision Making Competitive Advantage Survival
Information Systems
Interrelation components that collect, process, strore, and distribute information to support decision making and control in an organization.
IT Infrastructure Types
Mainframe Personal Computer Client/Server Era Enterprise Computing Era Cloud Computing
Main Frame
Remote terminals connected to a centralized mainframe.
Client/Server Era
Clients are networked to powerful servers.
Client inputs data and server processes it.
Server could be mainframes.
Enterprise Computing Era
Connects different networks, computers, mainframes, mobile phones.
Cloud Computing
Model of computing that provides access to a shared pool of computing resources.
The clouds can be acessed on an as-needed basis from any connected device and location.
Moore’s Law
Power of microprocessors double every 18 months.
Information Systems can help in:
Tracking Receiving Orders Determine whats best selling - track sells Decreasing time and cost Sending money Tracking inventory level
MRP
Material Requirements planning
Translates master schedule requirements for end items into time-phased requirements for subassemblies, components, and raw materials.
Works backward from the due date using lead times and other information to determine when and how much to order.
MRP Answers?
What is needed?
How much is needed?
When is it needed?
MRP II
Manufacturing Resources Planning
Expanded MRP with emphasis placed on integration
ERP
Enterprise Resource Planning
Next step in an evolution that began with MRP and evolved into MRPII.
Integration of financial, manuf, and human resources on a single computer system.
ERP Systems
Suite of integrated software modules and a common central database.
Information enterend in one process is immediately available for other processes.
Extended Components of ERP System
Business Intelligence
CRM
SCM
E-business
