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Rechtin on Ultraquality - The Challenge

Excellence Beyond Measure and the need for Ultraquality Systems

Ken McCormack

Software Architecture as Code

February 04, 2018

Continuing the complex systems architecture theme and discussion of ultra-quality systems, the excerpt below is taken from Eberhardt Rechtin, Systems Architecting, Creating and Building Complex Systems, 1991, Chap 8.

Several issues spring to mind today, particularly how the need for some ultra-quality systems continues to be driven . . .

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Rechtin on Ultraquality - Redundancy and Fault Tolerance

The Writings of a Complex Systems Architecture Legend

Ken McCormack

Software Architecture as Code

February 04, 2018

In his classic (but criminally overlooked) 1991 book "Systems Architecting, Creating and Building Complex Systems," Eberhardt Rechtin discusses technical, managerial and architectural responses to the challenge of building high quality systems. Despite being several decades old, 'modern' techniques like Lean manufacturing . . .

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Neal Ford Devops and Mircroservices

Architecture for Continuous Delivery

Ken McCormack

Software Architecture as Code

April 12, 2015

An interesting interview with Neal Ford on Devops and Microservices.

Check out the discussion on testing from 10m30s

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Quality Factors for Continuous Delivery

Architectural Quality Factors Revisited... for CD

Ken McCormack

Software Architecture as Code

April 06, 2015

In an initial post on architectural quality factors, we describe the...

availability, modifiability, performance, security, testability, and usability

... of software intensive systems [Bass et al, 2013].

The goal of Continuous Delivery is for systems to be able to 'continuously demonstrate their . . .

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Agile Architecture

Molly Dishman and Martin Fowler

Ken McCormack

Software Architecture as Code

April 06, 2015

An interesting keynote from Molly Dishman and Martin Fowler, on the changing role of architecture.

Takeaways

  • Diffusion of Architectural Responsibility
  • We no longer need architects, technical leads are doing the architecture?

Q. How do we make sure that 'architecture' is still . . .

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Architecting Continuously Testable Systems

Testability Quality Factor for Continuous Delivery in Digital Systems

Ken McCormack

Software Architecture as Code

April 06, 2015

TL;DR; When we architect systems using automated testing and test-first approaches, we quickly see testability constraints move to our system boundary. Low testability quality factor in external services is a key constraint on our ability to continuously prove our system is in a state of production readiness. We require external systems . . .

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Legacy Architecture and Testability

Manual Test Teams and Testability Architectural Debt

Ken McCormack

Software Architecture as Code

April 05, 2015

The architecture of specification subsystems has always been critical to quality factors like cycle time -

Industry estimates indicate that between 30 and 50 percent (or in some cases, even more) of the cost of developing well-engineered systems is taken up by testing. If the software architect can reduce this cost, the payoff . . .

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