Pengantar Sistem InformasiData Resource Management

Outline

1. Data Governance2. Master Data vs Transaction’s Data3. The Database Approach4. DBMS5. Data WareHouse6. Big Data7. Career @Database Skill

Data Governance• is an approach to managing information

across an entire organization.

DAMA International Tata Kelola Data IBM(Sunil Soares, 2011)

Master Data vs Transaction’s Data

• Master data are a set of core data, such as customer, product, employee, vendor, geographic location, and so on, that span the enterprise information systems.

• Transaction data, which are generated and captured by operational systems, describe the business’s activities, or transactions.

The Database Approach

Minimizes the following problems:• Data redundancy• Data isolation• Data inconsistency• Data security• Data integrity• Data independence

Data Model• integration of concepts that used for data

explanation, data relation and data constraint to keep data integrity.

• Data Model = Logical Data Structure• Data Model types:– Hierarchy– Network– Relasional– Objek Oriented

The Database Approach

The Database Approach

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The Database Approach

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Designing the Database

A data model is a diagram that represents entities in the database and their relationships.Entity-Relationship Modeling

Various methods of ER-D

ER-Diagram example

DBMSSoftware used to create and manage a database; it also provides tools for ensuring security, replication, retrieval, and other administrative and housekeeping tasks.

Examples:

Database in Action - Ms. Access

DBMS in Action

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DBMS

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Data Warehouse

A central data repository containing information drawn from multiple sources that can be used for analysis, intelligence gathering, and strategic planning.

Extract, Transform, Load

• Extract data from its home database• Transform and cleanse it so that it adheres to

common data definitions.• Load to the data warehouse location

Big Data“collections of data that are so enormous in size, so varied in content, and so fast to accumulate that they are difficult to store and analyze using traditional approaches”

The 3 V concepts:• Volume. Data collections can take up petabytes of storage, and are

continually growing.• Velocity. Many data sources change and grow at very fast speeds.

The nightly ETL process often used for data warehouses is not adequate for many real-time demands.

• Variety. Relational databases are very efficient for structured information stored in tables, but businesses can benefit from analyzing semi-structured and unstructured data as well.

Career @Database

Explore this…

1) Normalization method2) DDL vs DML3) Data Mining4) Data Mart5) OLTP vs OLAP6) ORM

Referensi

1) Patricia Wallace, Introduction to Information Systems, Prentice Hall (2014).

2) R. Kelly Rainer, Brad Prince & Casey G. Cegielski, Introduction to Information Systems Supporting and Transforming Business,Wiley (2013).