Books on how to plan your code?

Hello,
I'm currently starting to get into programing, and so far I have only made small apps. I have some experience in Javascript and PHP, and just finished the "Big Nerd Ranch Objective-C" book. There is one thing I have found myself lacking of, the skill to plan my applications.
Bascily, my question is, does anyone have a book that teaches you the basics of how to plan an application? Thinking with the focus on Objective-C, with for example UML for objects and so on. I am looking for a book that goes from when you get the idea, to the phase where you start coding.
All answers will be greatly appriciated

I probably shouldn't respond, seeing that I haven't launched any applications. But I did spend a considerable amount of time grappling with the same question and reached a satisfying conclusion.
The way xCode works to my mind is that there is such a gap between the available code and an application to allow for maximum control over the design process, while requiring significant tailoring and grouping for use in the application. The result is that it takes a significant amount of work to get from the available classes to your application classes or code.
There is, therefore, a space for the developer that is best filled with the design of a suite of applications, having the same 'parts' built by the developer according to their own designs and functional patterns. Should the need arise for more finely tuning particular parts for any one of the applications within the developer's suite, it can easily be done.
I am approaching the same problem at the current time, and starting first with the data model for a particular suite, then assigning the broadest possible kinds of applications that could use the data model. Then spending considerable time and research on designing the interface reusable parts for the entire suite. Then the reusable parts for the controllers. Each part will then be attached like legos for each application.
I plan on using configurations of the data model to help coordinate the installation of the proprietary 'parts'. It is those 'parts', rather than the application, that represents the primary capital.
It's no wonder that Lego is leading the world in the broad application of this principle. They use the same programmable 'parts' for games, cartoons, advertisements, packaging, and even manufacturing.
This is the natural course, seeing that it stems also from the nature of the 'objective C' which also stems from the nature of the transistor switch. But seeing one's self, or a team, and realizing that every individual or group has a place to formulate their own 'parts' for their own product designs...that requires the imagination, creativity, and courage.

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