Information Technology Terminologies

Data Warehousing:

• • Multidimensional OLAP (MOLAP)：The data is stored in a multidimensional cube. The storage is not in the relational database, but in proprietary formats.

  • Relational OLAP (ROLAP)：It relies on manipulating the data stored in the relational database to give the appearance of traditional OLAP's slicing and dicing functionality. In essence, each action of slicing and dicing is equivalent to adding a "WHERE" clause in the SQL statement.

  • Hybrid OLAP (HOLAP)：For summary-type information, HOLAP leverages cube technology for faster performance. When detail information is needed, HOLAP can "drill through" from the cube into the underlying relational data.

Data Mining:

• • Association Rule Analysis（鏈結分析）

  • Classification（分類分析）：Category Known

  • Clustering Analysis（集群分析）：Category Unknown

  • Sequential Pattern Analysis（次序相關分析）

  • Forecast Analysis（預測分析）

Cloud Computing:

• • Supporting Layers：

    • Software as a Service（SaaS）

    • Platform as a Service（PaaS）

    • Infrastructure as a Service (IaaS)

  • Service Deployment：

    • Public Cloud

    • Private Cloud

    • Community Cloud：Public > Community > Private Cloud

    • Virtual Private Cloud：VPN

    • Hybrid Cloud：Public + Private Cloud