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Description
Knowledge TechnologiesSeveral technologies are emerging that provide new ways to capture, store, present and use knowledge. This book is the first to provide a comprehensive introduction to five of the most important of these technologies: Knowledge Engineering, Knowledge Based Engineering, Knowledge Webs, Ontologies and Semantic Webs. For each of these, answers are given to a number of key questions (What is it? How does it operate? How is a system developed? What can it
Several technologies are emerging that provide new ways to capture, store, present and use knowledge. This book is the first to provide a comprehensive introduction to five of the most important of these technologies: Knowledge Engineering, Knowledge Based Engineering, Knowledge Webs, Ontologies and Semantic Webs. For each of these, answers are given to a number of key questions (What is it? How does it operate? How is a system developed? What can it be used for? What tools are available? What are the main issues?). The book is aimed at students, researchers and practitioners interested in Knowledge Management, Artificial Intelligence, Design Engineering and Web Technologies.
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4.5 ★★★★★
Based on 1893 reviews
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Product Reviews
★★★★★ 5
Sturdy and slim yet spacious and comfortable
Color: Derrick Brown, Size: One Size
Very nice! Fit about 10 cards total as well as about 10 bills. Would like to see how it holds up as I just got it today but I like it enough to write a review! I really like this wallet. I’m a bit of a stickler when it comes to having things near my butt area, but this fits great in my back pocket. I know it’s a front pocket billfold, but hey, I live on the wild side. I can wait until corona passes and I can walk up to the bar and whip this bad boy out to start a tab. It smells like a cowboy but presents like a stock broker. If you didn’t know me, and I pulled out this wallet, you would be very mystified. “Is this man classy? I think he might be! Look at fossil Derrick Front pocket Billfold” “wait, is that Derrick himself?” I’m not Derrick, but thinking about switching my name to Derrick because of how good this wallet is. The leather looks like it was cut from a Waygu bull with horns too big for a Cadillac. I’ll tell you what, this SOB is purtttttty. Would recommend to friends, family, and acquaintances. I would never pull this out in front of my enemy, in fear he might get the same wallet as me. The fossil message said this wallet is one of a kind, so the odds of someone else getting the same one is impossible. So, if I am the only one who has this wallet, how will anyone in the world find this review helpful? I guess you’ll just have to take a chance at getting a similar wallet to mine.
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Reviewed in the United States on April 17, 2020
★★★★★ 5
Nice simple wallet
Color: Derrick Brown, Size: One Size
I purchased this for my husband. It’s one inch shorter than his previous wallet, which had us worried at first. However, it fits all his cards. It has a nice look to it and time of good quality. My husband says he’s happy with it and really likes it.
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Reviewed in the United States on December 7, 2025
★★★★★ 5
Expensive, but a well-made slim front pocket wallet
Color: Steven Medium Brown, Size: One Size, Color: Steven Medium Brown, Size: One Size
This is a review for the Fossil “Steven” Front Pocket Bifold Wallet. This wallet measures 4.5 inches x 3.0 inches. It is made with soft-touch leather all around (which feels fantastic), and the build quality is top-notch. It is definitely smaller than a typical wallet, but is still able to hold a good number of cards. I could easily fit about 12 cards into this wallet while still being relatively slim and compact. The wallet is discreet with only a “Fossil” logo that is embossed on the inside. The fabric lining of the cash compartment is treated with an anti-microbial coating. There’s more information about this coating on the manufacturer’s website, but it seems this is to protect against viruses and germs that maybe on cash notes. And while other wallets feature RFID Blocking, this wallet does not claim to do so. This wallet is definitely pricey. And you can easily find other slim wallets for much less. But, I suppose I’m paying for the brand name - and I do like Fossil products. So if you want a brand name wallet that is well-made and slim - this is a good option to consider.
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Reviewed in the United States on August 4, 2022
★★★★★ 4
Noice
Color: Derrick Brown, Size: One Size
Nice wallet, preferred a different one, returned.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Slim but capable
Color: Steven Medium Brown, Size: One Size
I've had my old wallet for over two decades, it's warren and the edges are starting to fall apart and I thought I'd be proactive and get a new one before it was completely useless.
With all the new slim minimalist designs I was intregeed. This is what I found out, at least for my needs. These new elastic card clips, are nice size wise, are not what the are advertised to be. They are small in your pocket but you need another place for the items you don't use everyday. So as far as being slim and efficient they are misleading. Unless you plan ahead you won't have what you need, say health insurance cards oops forgot them cause I don't use them everyday. Ones with cash clips or elastic bands aren't what they are cracked up to be either. To pull out a bill you need to take all the bills out unfold then and then refold the and squeeze the back in the clip, not covenant.
Next I tried a bi-fold card holder with a money clip. This solved the having everything I needed even if I didn't use it everyday but still had the cash usability issue which required less folding but still needed to pull all the bills out to use. Plus it wasn't any dinner or smaller then my old wallet.
Then I found this wallet, it was pretty much the same as my old one minus one card slot due to the visible ID slot. So in the end this was the perfect wallet for me. Not sure what my old wallet was as the leather is very well worn but I'm guessing it is the same brand.
One other thing this wallet is not scan protected which the other slim wallets were. But you can buy cheap sleeves to place on either side to protect against this if your concerned. One benefit of not having this feature is the ability to keep your key card in your wallet and have it work. Again slim but needing multiple place for your items is not efficient, was not a fan of the carabineer I had to also carry while using the slim wallets.
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Reviewed in the United States on March 12, 2022
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