Breaking News
Comments
Newest First | Oldest First | Threaded View
Susan Rambo
User Rank
Blogger
Re: Maintainability
Susan Rambo   3/25/2014 7:23:04 AM
NO RATINGS
@perl_geek: "Every engineer's education should have to include dismantling and fixing a product that was designed without consideration for maintainability. One with sharp edges opposite corroded bolts behind tangles of indistinguishable wires."  

Brilliant. Have you seen the repairability ratings that iFixit gives devices after the team tearsdown a device?


perl_geek
User Rank
Freelancer
Maintainability
perl_geek   3/24/2014 6:46:15 PM
NO RATINGS
Every engineer's education should have to include dismantling and fixing a product that was designed without consideration for maintainability. One with sharp edges opposite corroded bolts behind tangles of indistinguishable wires.

I expect most people could nominate at least one classic combination of those features. As a boy, I learnt a great deal about the idea from taking apart my mother's Austin 7, (which had broken its crankshaft). By today's standards, that was probably quite a benign specimen.

jkocurek
User Rank
Rookie
Re: You have to spend time on the other side of the wall
jkocurek   3/24/2014 2:20:28 PM
NO RATINGS
There are so many walls. One, how does the end user use your product? Do the sales/marketing whoever is generating specs. know anything about the engineering side? If the product is for a specific customer, has anyone in engineering talked to people expected to use it, not just to their management?


And then there is the internal stuff. Do the hardware guys talk to the software guys, or the production people or the maintenance guys?


Because all of these are required to make a successwful product. The brief time I was at Telxon, they were started to implement a system where they would survey their customer's needs, develope to 90% of those needs and the product design committee consisted of members from hardware, software, production and maintenance with all having to sign off on everything before development would start. And then there wer gates established so that a project could be evaluated and had to get a green light before proceeding. But then, they were swallowed by the Evil Empire and...

Something to point out here is that in software, particularly in web applications, Agile development, often in the form of some sort of scrum, is a software only analog of what Mr. Bigg developed for Telxon. Agile makes a huge difference, just look at healthcare.gov or even worse, Oregon's implementation of it. Both shows why approaches like the waterfall model aren't great ideas...

dvhw
User Rank
Rookie
You have to spend time on the other side of the wall
dvhw   3/24/2014 12:02:24 PM
NO RATINGS
When I was at MIT (decades ago) we had to build a lot of stuff ourselves, not just design it.  in mechanical engineering we had to make stuff we'd designed as well (this was pre-CNC) explicitly in part so we would learn what it was like to be on the receiving end of a stupid part and to learn that those guys in the blue overalls who didn't have the fancy education were at least as smart as us and knew a hell of a lot more about mfg than we ever would.

Nowadays you should still be building  a lot of stuff, on your free time if nowhere else.  But the manufacturing has become so complex and specialized (SMT, 3D printing, etc) that you have to spend time with folks who live and breathe that stuff.

If, like me, you aren't working for Apple/Cisco/Toshiba/Siemens then that means hiring a consultant :-(



EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Aging Brass: Cow Poop vs. Horse Doo-Doo
Max Maxfield
7 comments
As you may recall, one of the things I want to do with the brass panels I'm using in my Inamorata Prognostication Engine is to make them look really old. Since everything is being mounted ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
11 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
11 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
45 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)