rswail

29 ms·

601.
by rswail 2y ago
Usual requirement is <500ms from tap to passenger through the barrier, which includes not only the validation/fare deduction etc, but also the display and barrier unlock.
602.
by rswail 2y ago
The usual maximum time allowed for tap->barrier open is a maximum of 450ms. That includes all read/write times for the token, display changes, fare calculations and deductions, all business rule validation (eg hotlisting stolen toke
603.
by rswail 2y ago
That is the issue. If it was just a matter of a unique identifier, then a read only token would be fine. However, for most transit, there is some form of "check in/out" (either through barriers/gates or via validation&#x
604.
by rswail 2y ago
1. NFC tickets with embedded security are robust against replication, at least to the extent required for transit. On 4, QRs are substantially slower to be read and decoded. NFC/RFID have a range of ~100mm and the field shape is depend
605.
by rswail 2y ago
That is what happens, however it exposes the transit company to a risk that many of them aren't willing to accept.
606.
by rswail 2y ago
Those QR codes are validated online. Transit has to work offline.
607.
by rswail 2y ago
On rail systems with gates, these disposable "ultralite" RFID tickets are usually put through the old slot that used to take magentic tickets. Exit gates usually capture the ticket on exit when it has been used up (ie single journ
608.
by rswail 2y ago
The problem with expecting a "unique tag into the back end" is that these systems have to work offline. The QR codes are significantly slower to read than NFC. I've built both NFC and QR (and ye olde fashioned magnetic stripe
609.
by rswail 2y ago
I've worked in public transport ticketing for the past 30 years including the first system outside Japan (Hong Kong's Octopus). The problem with QR codes: 1. If they're printed, they can be copied. 2. "Dynamic" QR c
610.
by rswail 2y ago
How did you get a backwards Y, T, and W? /s
611.
by rswail 2y ago
And they couldn't demand that the provider deletes it in EU either, because maintaining medical records is a legal requirement, which overrides the right to be forgotten. But it does require you to document that requirement and make su
612.
by rswail 2y ago
There's an awesome series on Australian ABC (our BBC) called "Gruen Transfer" about advertising. Covers the techniques, explains campaigns, analyzes ads etc. https://iview.abc.net.au/show/gruen
613.
by rswail 2y ago
I actually broke down and I'm paying the exorbitant Apple tax for the extra iCloud storage for photos etc to deal with syncing between phone/mac/ipad etc.
614.
by rswail 2y ago
I backup using Arq to a local NAS and to OneDrive because I got free storage there as part of an Office 365 sub. <fingers crossed> haven't had to restore, but have verified the backups. The problem I had with Time Machine is that
615.
by rswail 2y ago
* MacPorts: Everything you need to make Apple Unix equivalent to a Linux box, plus more. Works with the Apple OS, not against it. Doesn't put things in weird places or expect to disable SIP etc. Updates the old versions of CLI stuff th
616.
by rswail 2y ago
They have the largest installed base of AI engines in every iPhone, iPad, Apple silicon Mac. If they can't do anything useful with AI, no one can. Hopefully more than just identifying faces in photos. Siri needs an upgrade, it could be
617.
by rswail 2y ago
A lot of people focus on the process instead of the participating entities. The focus when designing the system should be on the entities (Customer, Payment, Bill, Order, Inventory) instead of the processes (ordering, billing, fulfillment).
618.
by rswail 2y ago
Wrote a public transport ticketing system that processes 100-200K+ trips/day with sub-second push of notification to mobiles of trip/payments. Event driven and CQRS "entities" made logic and processing much easier to cre
619.
by rswail 2y ago
Can't wait for the first corporate legal case where discovery requires them to present the entire history of a person's computer usage, not just their communications. If you're capturing screen shots, then how is something li
620.
by rswail 2y ago
Git has its quirks, but the underlying model is good. There's some naming problems, like I just had to explain lightweight tags vs annotated ones to some newbies. The lightweight ones should have had a different name, like "bookma
621.
by rswail 2y ago
Oracle making the change due to licensing is like a dictionary definition of hubris, considering how their own license enforcement operates.
622.
by rswail 2y ago
There's a point to the referenced comment, but more interesting to me is that there was a link in a comment there to https://www.asyncapi.com which is something I wish existed about 7 years ago, because it's a spec for
623.
by rswail 2y ago
The choice of cloud operators is down to two. How is it that google can totally screw up so badly?
624.
by rswail 2y ago
The US is going to be providing a sealed nuclear reactor to the UK/AU submarine development. It already shares that nuclear technology with the UK and CA, this is an extension to AU.
625.
by rswail 2y ago
It'll be interesting to see the impact of "instant settlement" systems that are based around ISO20022 like FedNow, PromptPay, Osko and others. If my bank can offer direct instant settlement between my account and another pers
626.
by rswail 3y ago
I use this: https://www.spotify-notifications.app/ Does what it says on the tin. Doesn't provide controls, but I usually have the spotify app open somewhere underneath other windows, so the play/pause/forward
627.
by rswail 3y ago
Eames said "Design depends largely on constraints". https://www.hermanmiller.com/stories/why-magazine/design-q-a... Regarding compromise, he said: > Have you been forced to accept compromises? > &g
628.
by rswail 3y ago
In Australia, we have "Fringe Benefits Tax" which applies to that sort of thing. Basically anything that is considered a non-cash benefit is FBT tax owed by the employer. The tax is at the current maximum marginal income tax rate
629.
by rswail 3y ago
Why would they want to be involved in a highly competitive and low margin business like consumer credit?
630.
by rswail 3y ago
The NPP is about removing the Visa/MC networks from the equation. It would also remove the EMV requirements, if I'm identified by my mobile phone number + biometrics linked to a bank account, which can have it's own credit li

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