Marcus looks at and tries to solve a number of problems when importing large amounts of data into COre Data on Cocoa Touch

In this instalment of his security column Graham argues that Apple could then do away with monolithic root privileges completely, allowing the authorisation policy database to control who has privileged access for what tasks with which applications.

It’s now accepted wisdom that no application is an island, and data just wants to be free. So, an important consideration in creating your product is how your users will use it to share. Being able to easily get information out of your application and shared with other people is an important element in your user’s satisfaction. It’s also critically important to your software business. Why? Because word of mouth will be your most important form of marketing and nothing is a better conversation starter than, “How’d you do that?”.

Martin recently spent several days implementing drag & drop in an application. It involved the usual tasks of dragging an object from a library list to a collection in a source list, and then the ability to re-arrange both the objects in the collection and the order of the collections in the source list. Unfortunately, this standard pattern on the Mac isn't very accessible as it required full use of the mouse, so in this instalment he discusses how you need to provide alternatives.