Information Systems Lecture Notes Summary

Flashcards covering key concepts from the Information Systems lecture notes, including definitions and important attributes.

Data refers to __.

a collection of organized facts and figures.

Information is the and form of data.

processed and meaningful.

Good Information should possess attributes such as __, __, __, __, __, __, and __.

Accuracy, Timeliness, Brevity, Reliability, Relevance, Understandable, Integrity.

The objectives of a system are expressed as its or .

long term purpose or characteristics.

A system is a set of or entities forming an integrated whole.

interacting or interdependent.

An __ system can communicate and exchange data with external systems or users.

Open.

A __ system does not communicate with external systems and processes data internally.

Closed.

In the relational model, a key is used to __ data logically.

organize.

A __ key is used to uniquely define a data set/row in a table.

primary.

The __ is a diagrammatic representation that shows how data flows in a system.

Data Flow Diagram (DFD).

A __ is a method of describing actions when specified conditions are met.

decision table.

In a project, the primary constraints are __, __, and __.

scope, time, and cost.

Project management involves planning, organizing, and managing resources to achieve and .

specific project goals and objectives.

The process of gathering requirements and designing a project plan is part of the __ stage.

Planning.

In __ processing, transactions are processed as they occur.

real-time.

The __ phase of the SDLC involves monitoring and supporting the deployed system.

Maintenance.

An __ is a type of network that spans a large physical distance.

WAN (Wide Area Network).

The __ is a worldwide network that transmits data through interconnected networks.

Internet.

A __ is a private network that connects computers within an organization.

intranet.

E-commerce refers to the __ of goods and services over the Internet.

exchange.

The three primary project constraints are often visualized as a __.

triangle.

A __ key references a primary key to maintain database integrity.

foreign.

A __ key is used strictly for data retrieval purposes and does not guarantee unique outcomes.

secondary.

To optimize a project's performance, project managers must consider the __ constraints.

triple (scope, time, cost).

A __ system is characterized by its ability to change state in response to disturbances.

Adaptive.

A system is a collection of related __, operating together toward a common purpose.

components or elements.

Decision trees are used as a __ tool to analyze potential outcomes.

decision support.

A __ processing system is typically used for daily transaction processing.

Transaction Processing System (TPS).

The __ of a project includes final acceptance and documentation.

Closing phase.

The __ is designed to summarize the important aspects of a project.

Terms of Reference (TOR).