MacApp
MacApp is an object-oriented application framework that provides many of the basic features of a standard Macintosh application. MacApp handles the details of working with the Mac OS, allowing you to concentrate on your areas of expertise. | | Macintosh Programmer’s Workshop (MPW)
Macintosh Programmer’s Workshop (MPW) is a robust environment for Macintosh development. MPW provides a programming shell, as well as a collection of tools, scripts, libraries, and interfaces, that you can use to build, manage, optimize, and test your code. | | | MacsBug
MacsBug is the assembly-language debugger for the Mac OS. You use MacsBug to test and debug your code by performing such tasks as examining memory, stepping through code, and tracing program execution. | | ResEdit
ResEdit is an extensible, stand-alone resource editor for the Mac OS. You use ResEdit as part of your software development process to create icons, menus, and other resources for applications and files. | |
Mac OS 8 Developer Documentation > Development Tools