Set 3 Data Flashcards

(20 cards)

1
Q

What is the Data–Information–Knowledge model?

A

It describes how raw data becomes meaningful insight: data are raw facts; information is data in context; knowledge is information interpreted and applied through experience.

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2
Q

What are the stages of the Data Lifecycle?

A

Capture → store → use → share → archive → dispose. Each stage ensures data quality, security, and compliance.

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3
Q

Explain the Data Value Chain.

A

Data → analysis → curation → storage → usage → value creation. Each step adds structure, meaning, and business value.

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4
Q

Describe the Digital Transformation Framework.

A

It has six dimensions: strategy, organization, culture, technology, customer, and people. Together they align digital initiatives with business goals.

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5
Q

What are the key dimensions of Data Quality?

A

Accuracy, completeness, consistency, timeliness, and uniqueness — the foundation of reliable analytics and decision-making.

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6
Q

Explain the difference between Schema-on-Write and Schema-on-Read.

A

Schema-on-Write defines structure before storing data (data warehouses); Schema-on-Read applies structure when accessing data (data lakes).

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7
Q

Compare Data Warehouse, Data Lake, and Data Lakehouse.

A

Warehouse = structured data for reporting; Lake = raw data for flexibility; Lakehouse = combines both with governance and analytics performance.

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8
Q

Explain the Big Data 5V Model.

A

Big Data is characterized by volume, velocity, variety, veracity, and value — describing its scale, speed, diversity, reliability, and usefulness.

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9
Q

Describe the relationship between ERP, ETL, and BI systems.

A

ERP captures operational data; ETL extracts, transforms, and loads it into a central store; BI analyzes and visualizes it for decision-making.

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10
Q

What is the Digitalization Hierarchy?

A

Digitization converts analog to digital; Digitalization automates processes; Digital Transformation reshapes strategy and culture through technology.

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11
Q

Explain the link between Data Governance and IT Governance.

A

Data governance manages data quality, availability, and protection; IT governance aligns technology investments with strategic business goals.

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12
Q

Describe the components of a Smart System.

A

Smart systems combine physical elements, intelligence (software/algorithms), and connectivity — enabling them to sense, analyze, and act autonomously.

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13
Q

Explain the concept of the Internet of Things (IoT).

A

A network of connected devices that collect, exchange, and process data to enable automation and insight across systems.

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14
Q

Outline the Strategic Business Objectives of Information Systems.

A

Operational excellence, innovation in products/services, customer and supplier intimacy, improved decision-making, competitive advantage, and survival.

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15
Q

Describe the Data Governance Framework.

A

Defines policies, roles, responsibilities, and controls to ensure data quality, security, compliance, and value alignment.

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16
Q

Explain the Business Intelligence Model.

A

BI collects and transforms organizational data into dashboards, reports, and analytics that support operational and strategic decisions.

17
Q

Describe the Digital Transformation Challenges Model.

A

Key barriers are data volume, financial cost, resistance to change, and lack of digital skills — spanning technical, cultural, and organizational levels.

18
Q

Explain the Blockchain Model.

A

A distributed ledger where each transaction is stored in cryptographically secured, immutable blocks — ensuring transparency and trust.

19
Q

Describe the Edge Computing Model.

A

Processes data close to the source device to minimize latency and bandwidth use — essential for real-time and autonomous applications.

20
Q

Summarize the Cloud Computing Service Model.

A

Provides on-demand shared IT resources over the internet, typically via IaaS, PaaS, or SaaS models for scalability and flexibility.