i am building an application in which one of the part is calendar updates , push notification ,
i am wondering what is best way/architectural pattern/technologies are best suited forthis scenario . I am a .net developer .if possible kindly guide me on same platform
Pushing requires that the destination is available and capable of accepting the request. That seems unlikely for "calendar" in general since it would suggest client machines (which can be off or have no network access.)
So you are going to need to refine your requirements more before you can do anything.
If the requirements are very specific, such as using a MS Exchange server, then there still is not enough detail for an "architecture". But in that case you would start with how you are going to get the updates in the first place.
If you update the target framework for an assembly, then you need to update the target for anything that references that assembly. That should only be a problem if you're not updating the target for everything, which doesn't sound like the case here.
If you start from the bottom up, then you may get errors when you first open a project that targets 4.5.x and references an assembly you've just updated to 4.7.x; but those should go away once you change that project's target framework.
If that bothers you, then it may be easiest to work from the top down; start with the applications, then the assemblies they reference, then any transitive references, and so on. Once that's done, you can work your way back up, updating the references at each level.
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If the apps target 4.5, then the assemblies they use need to target 4.5.
Creating separate branches might work; but there's a good chance the branches would drift further and further apart over time, making it harder to apply bug fixes to them all.
I'd be more inclined to use multi-targeting[^] - have one branch, with one project, building for multiple framework versions. Where needed, you can use conditional compilation to add features to the 4.7 version that won't be included in the 4.5 version.
I'm a part of a Members Only club where I'm working on an app for them. We have coded membership cards.
They have a keypad to open the door and they want to implement an electronic Card Reader Door Lock and we want to build it into the app so they can lock people out as needed, say when their membership expires.
This would be like a hotel door lock, except I only need one lock, and, most importantly, I need to be able to build it into my app, so I need a solution that comes with an API I can tap into.
Anyone know of anything like this?
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Dabble is correct, I am trying to convince people they are actually using NFC while they claim to be using RFID.
NFC as other have said is a short range protocol for reading and writing data between a tag. I think there are limits imposed on the range you can operate at. I'm fairly sure these are imposed by the power applied to the antenna. I'm more an expert on RFID though. If I can help I will...
Don't have a clue: you found the wrong site.
"Design and Architecture" in this context relates to the the design of complex software systems, and the decisions related to overall software system structure and behavior.
It has a total of sod all to do with how high the bathroom stall doors should be or whether the hinges should be on the left, right, or top edge.
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