Innovation without permission: from Codd to NoSQL

Innovation without permission: from Codd to NoSQL

• 1.
  Innovation without permission Daniel Lemire http://lemire.me http://twitter.com/lemire Thanks to: A. Badia, Louisville University and J. Robillard from UQAM
• 3.
  - 2000 employees - 600 million users* * As of January 2011 Agarwal, A. (2009). Facebook: Science and the Social Graph. QCon 2008.
• 4.
  - No schema: key-value stores - No join - Engineers have direct access to data * As of January 2011 Agarwal, A. (2009). Facebook: Science and the Social Graph. QCon 2008.
• 5.
  ~0% Image source:dullhunk (flickr)
• 6.
  ~10 000 InformationSystems ~90% Relational 100-200 Tables/database 50-200 Attributes/table Source: Brodie & Liu, The Power and Limits of Relational Technology in the Age of Information Ecosystems, On The Move Federated Conferences, 2010.
• 7.
  Post-Methodology Era: late 1990s D. E. Avison and G. Fitzgerald, Where now for development methodologies? 2003.
• 8.
  Sophisticated users Image source: Dave77459 (flickr) Billions of computers Image source: ivanx (flickr)
• 9.
  Users are consideredas mere faceless objects for who the systems are designed. J. Iivari, H. Isomäki, S. Pekkola, The user – the great unknown of systems development: reasons, forms, challenges, experiences and intellectual contributions of user involvement, Information Systems Journal, 2010.
• 10.
  93% of accountsare never used Source: Meredith and O'Donnell, A Functional Model of Social Media and its Application to Business Intelligence, DSS '10, 2010.
• 11.
  n !ot s are never used a ted w ul I s 93% of accounts c o n Source: Meredith and O'Donnell, A Functional Model of Social Media and its Application to Business Intelligence, DSS '10, 2010.
• 13.
  Deployment: test foruser reactions * As of January 2011 Agarwal, A. (2009). Facebook: Science and the Social Graph. QCon 2008.
• 14.
  - Google hadmore than 1 million servers* in 2007 * according to Gartner
• 16.
  Brewer’s theorem (CAP) Consistency Availability XN B MS oS QL RD Tolerance Gilbert, S. and Lynch, N., Brewer's conjecture and the feasibility of consistent, available, partition-tolerant web services. 2002
• 17.
  NoSQL
• 18.
  - Corruption inOracle database - Up to 16.5 million customers affected - $132 million frozen - thousands of loan applications lost - Over-engineered database: strong consistency throughout Online: Chris Mellor, Morgan Chase blames Oracle for online bank crash , Curt Monash, Details of the JPMorgan Chase Oracle database outage
• 19.
  Does your methodology know about: - Co-design with users? - Highly distributed data?