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Stephanie Shen's Blog Posts Tagged 'Data' (3)

Design Principles for Big Data Performance

The evolution of the technologies in Big Data in the last 20 years has presented a history of battles with growing data volume. The challenge of big data has not been solved yet, and the effort will certainly continue, with the data volume continuing to grow in the coming years. The original relational database system (RDBMS) and the associated OLTP  (Online Transaction Processing) make it so easy to work with data using SQL in all aspects, as long as the data size is small enough to…
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Added by Stephanie Shen on September 29, 2019 at 4:00pm — 1 Comment

7 Steps to Ensure and Sustain Data Quality

Several years ago,  I met a senior director from a large company.  He mentioned the company he worked for was facing data quality issues that eroded customer satisfaction, and he had spent months investigating the potential causes and how to fix them. “What have you found?” I asked eagerly.  “It is a tough issue.  I did not find a single cause, on the contrary, many things went wrong,” he replied.  He then started citing a long list of what contributed to the data quality issues - almost…
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Added by Stephanie Shen on July 28, 2019 at 3:30pm — No Comments

Big Data Architecture in Data Processing and Data Access

I started my career as an Oracle database developer and administrator back in 1998. Over the past 20+ years, it has been amazing to see how IT has been evolving to handle the ever growing amount of data, via technologies including relational OLTP (Online Transactional Processing) database, data warehouse, ETL (Extraction, Transformation and Loading) and OLAP (Online Analytical Processing) reporting, big data and now AI, Cloud and IoT.  All these technologies were enabled by the rapid…
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Added by Stephanie Shen on June 23, 2019 at 7:30am — No Comments

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