There's several project management models; but given the options of Fast, Good, and Cheap, pick any t
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October 17 · Issue #7 · View online
Email digest of dylanninin
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There’s several project management models; but given the options of Fast, Good, and Cheap, pick any two. – Wikipedia
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Project Estimation Methods – Precursive
Estimating techniques can be confusing – there are many different ways to predict the effort or cost of a project, and often there’s no clear winner in the decision-making process.
Below, we’ll take a look at some of the most common project estimation techniques.
- Top-Down Estimation: use WBS etc
- Bottom-Up Estimation
- Delphi Technique (aka expert judgement)
- Parametric Estimation: use mathematical models
- Comparative/Analogy Estimation
- Three-point Estimation: E = (a + 4m + b) / 6
- a = the best-case estimate
- m = the most likely estimate
- b = the worst-case estimate)
One more method, Passion Estimation …
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What are some ways to improve your project estimation skills? - Quora
Project estimates almost always tend to be underestimates rather than overestimates; one rarely hears of long projects finishing ahead of schedule.
Being cognizant that project estimation is hard and reflecting on why estimates went wrong on a particular project will guide you to toward smaller estimation errors on subsequent projects. There’s a lot more to executing on a project than just producing accurate estimates.
If you’re an engineer and you want to master techniques used by top software engineers to turn their projects into successes, The Effective Engineer is recommended. It’s packed with hundreds of stories, insights, and actionable strategies from leaders all across Silicon Valley.
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Scrum and XP from the Trenches - 2nd Edition
The tricky part to agile software development is that there is no manual telling you exactly how to do it. You have to experiment and continuously adapt the process until it suits your specific situation. This book aims to give you a head start by providing a detailed down-to-earth account of how one Swedish company implemented Scrum and XP with a team of approximately 40 people and how they continuously improved their process over a year’s time.
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What typing ^D really does on Unix - Chris
Everyone knows that it generates an end of file, so that cat or various other programs will exit.But this is just the usual effects of typing D; it is not what it actually does. What D actually does is simple but subtle: Typing D causes the tty driver to immediately finish a read().
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Transport Layer Security - High Performance Browser Networking
The TLS protocol is designed to provide three essential services to all applications running above it: encryption, authentication, and data integrity. Here’s an excellent essential introduction. Since “Performance is a feature” to deliver the best—fast, reliable, and resilient—user experience, this book is required reading for anyone who cares about web performance; it’s already established as the go-to reference on the topic. |
GlobalSign Certificate Revocation Issue | Hacker News
As part of a planned exercise to remove some of those links, a cross-certificate linking two roots together was revoked. CRL responses had been operational for 1 week, however an unexpected consequence of providing OCSP responses became apparent this morning, in that some browsers incorrectly inferred that the cross-signed root had revoked intermediates, which was not the case.
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RethinkDB is shutting down - RethinkDB
We worked very hard to make RethinkDB successful, but in spite of all our efforts we were ultimately unable to build a sustainable business. The business behind RethinkDB, an innovative open source realtime database, is closing down and its employees moving to Stripe. The project will live on as open source, however. 传送门:
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Git as a NoSQL database | Kenneth Truyers
We can create a Git NoSQL database by using some internal plumbing commands. Git is a content tracker, it just happens to be used mostly for source control.
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Basic Data Structures and Algorithms in the Linux Kernel - The Phrygian Cap
Some of the famous data structures and algorithms used in the Linux Kernel. And so can you. Links based on linux 2.6.
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A Tale of Two Software Engineers and Commitment | Codegrown
In the face of critical business situations we should by no means exhibit commitment in a mature and professional manner. The reward of gaining critical acclaim by your colleagues and supervisors is worth the extra hours, but not if you find yourself doing it every other day. We can go home at the end of the day and continue fresh the next morning from where we left off, the universe will probably still stay intact. Production issues come and go - stay committed, don’t burnout.
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