IBM Mainframes: Still the Backbone of Today’s Global Commerce
It appears that the introduction of IBM’s most powerful mainframe ever, the z14, had a significant effect in IBM’s recently announced 3Q 2017 results. According to Ginni Rometty, IBM chairman, president and CEO, “There was enthusiastic adoption of IBM’s new z14 mainframe, which delivers breakthrough security capabilities to our clients.”
When you think about it, IBM mainframes are incredibly pervasive in the entire world’s global commerce today. It has been referred to as the most powerful transaction processing system of the cloud era, according to Nanalyze (Nanalyze provides objective information about companies involved in disruptive technologies so that investors can make informed investment decisions.)
Nanalyze went on to say: “IBM mainframes are literally the backbone of today’s global commerce handling more than 30 billion transactions a day (more than the number of daily Google searches) including:
- 87 percent of all credit card transactions ($8 trillion a year)
- 29 billion ATM transactions ($5 billion a day)
- 4 billion passenger flights a year
- 68% of the world’s production workloads at just 6% of total IT costs
- Citi uses IBM mainframes to process 150,000 transactions a second.
The reason why the IBM mainframe remains entrenched in 92 of the top 100 banks in the world is because you just can’t compete with them on cost at the moment.”
Origin: Art Zeigler den 7. november 2017
Det er en stor omlægning at skifte fra waterfall til agile
Alle vil være agile, for så kommer man hurtigere på markedet, slipper af dokumentations-kravene, og udviklerne kan koncentrere sig om det sjove. Men det er en stor omlægning at skifte fra waterfall til agile, og virksomheds-kulturen trækker næsten altid imod.
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What is Agile
Henrik Kniberg - agil mentor / coach og forfatter hos crisp.se har begået en fremragende introduktion til agil udvikling.
Agile = homing missile
• The customer discovers what he wants
• The developers discover how to build it
• Things change along the way
Principles behind the Agile Manifesto
• Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.
• Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage.
• Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.
• Business people and developers must work together daily throughout the project.
• Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done.
• The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.
• Working software is the primary measure of progress.
• Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
• Continuous attention to technical excellence and good design enhances agility.
• Simplicity--the art of maximizing the amount of work not done--is essential.
• The best architectures, requirements, and designs emerge from self-organizing teams.
• At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly
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